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<h1><a style="color:black" href="http://maraisresearchgroup.co.uk/"><div class="transparent-box">Atmospheric Composition and Air Quality Group</div></a></h1>
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<span id="top"><h2>Presentations</h2>
Presentations by the group at research meetings, conferences, and seminars. PDFs of slides or in some cases video recordings are provided for presentations since 2017. For copies of pre-2017 slides, please contact <a href="mailto:[email protected]">Eloise Marais</a>.
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<td> <a href="#2025"><span><strong><span style="color: #3672b5; font-size: 12pt">2025</span></strong></span></a> </td>
<td> <a href="#2024"><span><strong><span style="color: #3672b5; font-size: 12pt">2024</span></strong></span></a> </td>
<td> <a href="#2023"><span><strong><span style="color: #3672b5; font-size: 12pt">2023</span></strong></span></a> </td>
<td> <a href="#2022"><span><strong><span style="color: #3672b5; font-size: 12pt">2022</span></strong></span></a> </td>
<td> <a href="#2021"><span><strong><span style="color: #3672b5; font-size: 12pt">2021</span></strong></span></a> </td>
<td> <a href="#2020"><span><strong><span style="color: #3672b5; font-size: 12pt">2020</span></strong></span></a> </td>
<td> <a href="#2019"><span><strong><span style="color: #3672b5; font-size: 12pt">2019</span></strong></span></a> </td>
<td> <a href="#2018"><span><strong><span style="color: #3672b5; font-size: 12pt">2018</span></strong></span></a> </td>
<td> <a href="#2017"><span><strong><span style="color: #3672b5; font-size: 12pt">2017</span></strong></span></a> </td>
<td> <a href="#2016"><span><strong><span style="color: #3672b5; font-size: 12pt">2016</span></strong></span></a> </td>
<td> <a href="#2015"><span><strong><span style="color: #3672b5; font-size: 12pt">2015</span></strong></span></a> </td>
<td> <a href="#2014-2010"><span><strong><span style="color: #3672b5; font-size: 12pt">2014-2010</span></strong></span></a> </td>
<!---<td> <a href="#2013"><span><strong><span style="color: #3672b5; font-size: 12pt">2013</span></strong></span></a> </td>
<td> <a href="#2012"><span><strong><span style="color: #3672b5; font-size: 12pt">2012</span></strong></span></a> </td>
<td> <a href="#2011"><span><strong><span style="color: #3672b5; font-size: 12pt">2011</span></strong></span></a> </td>
<td> <a href="#2010"><span><strong><span style="color: #3672b5; font-size: 12pt">2010</span></strong></span></a> </td>--->
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<p><span><strong><span style="color: #3672b5;"><a name="2025"></a>2025</span></strong></span></p>
<p><strong>Data-informed evidence to propel regulation targeting the space and agricultural sectors</strong>, inaugural lecture by Eloise Marais, 15 January. [<a href="https://www.youtube.com/watch?v=DXWn2VGuFv8" target="_blank" rel="noopener noreferrer">Link to Youtube video</a>]</p>
<p><span><strong><span style="color: #3672b5;"><a name="2024"></a>2024</span></strong></span></p>
<p><strong>Health burden disparities from unequal exposure to traffic-related air pollution in UK cities</strong>, poster by Eloise Marais at the Royal Society of Chemistry Air Quality in the 21st Century conference, 9 December. [<a href="http://maraisresearchgroup.co.uk/Presentations/EAMarais-RSC-21CAQ-2024-poster.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Air pollution and environmental impacts of megaconstellation satellite missions</strong>, talk by Connor Barker at the Royal Society of Chemistry Air Quality in the 21st Century conference, 9 December. [<a href="http://maraisresearchgroup.co.uk/Presentations/CBarker_RSC_AQ21.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Cloud-sliced TROPOMI retrieval of vertically-resolved tropospheric NO2 and O3</strong>, talk by Eloise Marais at the Atmospheric Environmental Remote Sensing Society (AERSS) meeting, online, 2 December. <strong><em>Invited</em></strong>. [<a href="http://maraisresearchgroup.co.uk/Presentations/EAMarais-AERSS-meeting-HK-Dec2024.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Using satellite-derived surface concentrations of NO2 to assess inequities in exposure to traffic-related air pollution in UK cities</strong>, talk by Eloise Marais at the UK-US Air Quality Collaboration Workshop, online, 21 November. [<a href="http://maraisresearchgroup.co.uk/Presentations/EAMarais-NO2-disparities-Nov2024.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Current emissions estimate capabilities with EO</strong>, talk by Eloise Marais at the Defra Emissions Monitoring Deep Dive Symposium, online, 14 November. <strong><em>Invited</em></strong>. [<a href="http://maraisresearchgroup.co.uk/Presentations/EAMarais-sat-emis-Defra-EO-2024.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Are emission control policies and technologies sufficient to mitigate harm of poor air quality?</strong>, talk by Eloise Marais at the Royal Society UK-South Africa Bilateral Frontiers of Science meeting in Johannesburg, South Africa, 25 September. <strong><em>Invited</em></strong>. [<a href="http://maraisresearchgroup.co.uk/Presentations/EAMarais-Royal-Society-SA-UK-2024.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Quantifying the emissions and modelling the environmental impacts of rapidly growing satellite megaconstellations</strong>, talk by Connor Barker, workshop on Protecting Earth and Outer Space from disposal of spacecraft and debris, University of Southampton, 24 September. <strong><em>Invited</em></strong>. [<a href="http://maraisresearchgroup.co.uk/Presentations/BarkerC-Southampton-workshop-2024.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Assessment of variability in urban HONO using MAX-DOAS measurements in Central London</strong>, poster by Eleanor Gershenson-Smith at IGAC in Kuala Lumpur, Malaysia, 9-13 September. [<a href="http://maraisresearchgroup.co.uk/Presentations/EGershen-Smith-IGAC2024-poster.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Application and evaluation of a widely used top-down NOx emissions method to hotspots in Sub-Saharan Africa</strong>, poster by Nana Wei at IGAC in Kuala Lumpur, Malaysia, 9-13 September. [<a href="http://maraisresearchgroup.co.uk/Presentations/NWei-IGAC2024-poster.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Global premature mortality due to exposure to air pollution from fossil fuel combustion</strong>, poster by Karn Vohra at IGAC in Kuala Lumpur, Malaysia, 9-13 September. [<a href="http://maraisresearchgroup.co.uk/Presentations/KVohra-IGAC2024-poster.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Global premature mortality due to exposure to air pollution from fossil fuel combustion</strong>, talk by Eloise Marais at the Lancet Countdown on Air Pollution and Health, online, 13 September. [<a href="http://maraisresearchgroup.co.uk/Presentations/EAMarais-LancetCountdown-Sept2024.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Global health burden of ammonia emissions from fossil-fuel derived synthetic nitrogen fertiliser</strong>, talk by Karn Vohra at the 11th International GEOS-Chem Meeting (IGC11), Washington University in St. Louis (WUSTL), US, 11 June. [<a href="http://maraisresearchgroup.co.uk/Presentations/KVohra-IGC11-Jun2024.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>The growing impact of satellite megaconstellation launch and re-entry emissions on radiative forcing and stratospheric ozone depletion</strong>, talk by Connor Barker at IGC11, WUSTL, US, 11 June. [<a href="http://maraisresearchgroup.co.uk/Presentations/CBarker-IGC11-Jun2024.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Assessing top-down NOx emission estimates with synthetic columns from GEOS-Chem: Application in African hotspots</strong>, talk by Eloise Marais for Nana Wei at IGC11, WUSTL, US, 11 June. [<a href="http://maraisresearchgroup.co.uk/Presentations/EAMarais-IGC11-Jun2024.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Factors affecting urban HONO interpreted with a MAX-DOAS instrument and GEOS-Chem</strong>, talk by Eleanor Gershenson-Smith at IGC11, WUSTL, US, 11 June. [<a href="http://maraisresearchgroup.co.uk/Presentations/EGershenson-Smith-IGC11-Jun2024.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Improved representation of lightning NOx in GEOS-Chem informed by vertical profiles of NO2 from cloud-slicing TROPOMI</strong>, poster by Bex Horner at IGC11, WUSTL, US, 12 June. [<a href="http://maraisresearchgroup.co.uk/Presentations/RHorner-IGC11-Jun2024.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>A global, 3D inventory of satellite megaconstellation emissions from rocket launches and satellite re-entries: Impacts on stratospheric ozone and climate</strong>, talk by Connor Barker at the UCL Physical Geography seminar series, 30 May. <strong><em>Invited</em></strong>. [<a href="http://maraisresearchgroup.co.uk/Presentations/CBarker-PGeog-seminar-May2024.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Cloud-slicing to obtain vertical profiles of tropospheric NO2 and ozone</strong>, talk by Eloise Marais at the ISSI Workshop on Geostationary Satellites, 28 May. <strong><em>Invited</em></strong>. [<a href="http://maraisresearchgroup.co.uk/Presentations/EAMarais-ISSI-geo-May2024.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Deriving new and exploiting existing remote sensing observations to better understand sources and abundances of natural and anthropogenic reactive nitrogen</strong>, talk by Eloise Marais at the Royal Society UK-China Bilateral Workshop in London, 22-23 May. <strong><em>Invited</em></strong>. [<a href="http://maraisresearchgroup.co.uk/Presentations/EAMarais-Royal-Society-talk-May2024.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Assessment of variability in urban HONO using MAX-DOAS measurements in Central London</strong>, talk by Eleanor Gershenson-Smith at the European Geophysical Union General Assembly (EGU), 19 April. [<a href="http://maraisresearchgroup.co.uk/Presentations/Gershenson-SmithE-EGU-2024.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Developing inventories of by-products from satellite megaconstellation launches and disposal to determine the influence on stratospheric ozone and climate</strong>, talk by Connor Barker at EGU, 18 April. [<a href="http://maraisresearchgroup.co.uk/Presentations/BarkerC-EGU-2024.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Improved lightning NOx emission inventory evaluated with vertical profiles of NO2 and ozone obtained by cloud-slicing TROPOMI</strong>, poster by Bex Horner at EGU, 18 April. [<a href="http://maraisresearchgroup.co.uk/Presentations/HornerB-EGU-2024.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Influence of oil and gas end-use on summertime particulate matter and ozone pollution in the eastern US</strong>, talk by Karn Vohra at EGU, 17 April. [<a href="http://maraisresearchgroup.co.uk/Presentations/VohraK-EGU-2024.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>NOx emissions of hotspots in Sub-Saharan Africa derived with TROPOMI</strong>, talk by Nana Wei at EGU, 17 April. [<a href="http://maraisresearchgroup.co.uk/Presentations/WeiN-EGU-2024.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Near-automated estimate of city nitrogen oxides emissions applied to South and Southeast Asia</strong>, talk by Eloise Marais at EGU, 17 April. [<a href="http://maraisresearchgroup.co.uk/Presentations/MaraisEA-EGU-2024.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Developing satellite megaconstellation emission inventories to determine the impact on stratospheric ozone and climate</strong>, talk by Connor Barker at the ESA ESTEC workshop on Understanding the Atmospheric Effects of Spacecraft Re-entry, 10 January. [<a href="http://maraisresearchgroup.co.uk/Presentations/CBarker-ESA-ESTEC-workshop-Jan2024.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Potential influence of a formidable space tourism industry on stratospheric ozone and climate</strong>, talk by Eloise Marais at the ESA ESTEC workshop on Understanding the Atmospheric Effects of Spacecraft Re-entry, 10 January. <strong><em>Invited</em></strong>. [<a href="http://maraisresearchgroup.co.uk/Presentations/EAMarais-ESA-ESTEC-workshop-Jan2024.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p> <nav class="auto-style14">[<a href="#top">top</a>]</nav></p>
<p><span><strong><span style="color: #3672b5;"><a name="2023"></a>2023</span></strong></span></p>
<p><strong>Impact of UK farming on air quality, health and habitats</strong>, talk by Eloise Marais at the UCL Physical Geography seminar series, 6 December. <strong><em>Invited</em></strong>. [<a href="http://maraisresearchgroup.co.uk/Presentations/EAMarais-UCL-Dec2023.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Modelling the health burden of air pollution in the UK using updated exposure-risk relationships</strong>, poster by Karn Vohra at The Lancet UK Public Health Science conference, 24 November. [<a href="http://maraisresearchgroup.co.uk/Presentations/Vohra-TheLancet-2023.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>IGAC Early Career Researchers online conference</strong>, posters presented by Karn Vohra [<a href="http://maraisresearchgroup.co.uk/Presentations/KVohra-IGAC-ECR-2023.pdf" target="_blank" rel="noopener noreferrer">PDF</a>], Connor Barker [<a href="http://maraisresearchgroup.co.uk/Presentations/CBarker-IGAC-ECR-2023.pdf" target="_blank" rel="noopener noreferrer">PDF</a>], Gongda Lu [<a href="http://maraisresearchgroup.co.uk/Presentations/GLu-IGAC-ECR-2023.pdf" target="_blank" rel="noopener noreferrer">PDF</a>], Nana Wei [<a href="http://maraisresearchgroup.co.uk/Presentations/NWei-IGAC-ECR-2023.pdf" target="_blank" rel="noopener noreferrer">PDF</a>], Bex Horner [<a href="http://maraisresearchgroup.co.uk/Presentations/RHorner-IGAC-ECR-2023.pdf" target="_blank" rel="noopener noreferrer">PDF</a>], and Eleanor Gershenson-Smith [<a href="http://maraisresearchgroup.co.uk/Presentations/EGershenson-Smith-IGAC-ECR-2023.pdf" target="_blank" rel="noopener noreferrer">PDF</a>], 17 November.</p>
<p><strong>Impact of UK farming on air quality, health and habitats</strong>, talk by Eloise Marais at the Wolfson Atmospheric Chemistry Laboratories, University of York, 17 November. <strong><em>Invited</em></strong>. [<a href="http://maraisresearchgroup.co.uk/Presentations/EAMarais-York-Nov2023.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>The influence of UK agricultural ammonia emissions on urban air quality and future public health</strong>, talk by Karn Vohra for Eloise Marais at the UK Clean Air Research Futures Group Meeting, 20 October. [<a href="http://maraisresearchgroup.co.uk/Presentations/EAMarais-Vohra-CARFuG-Oct2023.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Reactive nitrogen in the global upper troposphere: Insights from historic NASA DC8 campaigns and GEOS-Chem</strong>, talk by Nana Wei at the 2nd GEOS-Chem Europe Regional Meeting (GCE2), 16 August. [<a href="http://maraisresearchgroup.co.uk/Presentations/NWei-GCE2-talk.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Evaluation of GEOS-Chem vertical profiles of nitrogen dioxide and ozone using cloud-sliced TROPOMI columns</strong>, talk by Rebekah Horner at GCE2, 16 August. [<a href="http://maraisresearchgroup.co.uk/Presentations/RHorner-GCE2-talk.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>UpTrop: A versatile Python software for retrieving tropospheric profiles of NO2 and ozone from satellite observations</strong>, poster by Gongda Lu at GCE2, 15 August. [<a href="http://maraisresearchgroup.co.uk/Presentations/GLu-GCE2-poster.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Using GEOS-Chem for retrieval of vertical profiles of atmospheric composition over Central London</strong>, poster by Eleanor Gershenson-Smith at GCE2, 15 August. [<a href="http://maraisresearchgroup.co.uk/Presentations/EGershenson-Smith-GCE2-poster.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>UK public health and ecosystem benefits from adopting technically feasible emission controls across Europe</strong>, talk by Eloise Marais at GCE2, 15 August. [<a href="http://maraisresearchgroup.co.uk/Presentations/EAMarais-GCE2-talk.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Impacts of megaconstallation satellite launches and end-of-life satellite disposal on stratospheric ozone and climate</strong>, talk by Connor Barker at GCE2, 15 August. [<a href="http://maraisresearchgroup.co.uk/Presentations/CBarker-GCE2-talk.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Early deaths, asthma incidences and cancer risks linked to air pollution from each major oil and gas lifecycle stage in the US</strong>, talk by Karn Vohra at GCE2, 15 August. [<a href="http://maraisresearchgroup.co.uk/Presentations/KVohra-GCE2-talk.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Assessing HTAP NOx emissions in cities in South and Southeast Asia using TROPOMI</strong>, talk by Gongda Lu at GCE2, 14 August. [<a href="http://maraisresearchgroup.co.uk/Presentations/GLu-GCE2-talk.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Retrieval and validation of global tropospheric nitrogen dioxide vertical profiles obtained via cloud-slicing TROPOMI partial columns</strong>, talk by Rebekah Horner at EGU, 26 April. [<a href="http://maraisresearchgroup.co.uk/Presentations/Horner_EGU_2023.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>MAX-DOAS measurements characterise Central London ozone pollution episodes during 2022 heatwaves</strong>, talk by Eleanor Gershenson-Smith at EGU, 28 April. [<a href="http://maraisresearchgroup.co.uk/Presentations/Gershenson-Smith_EGU_2023.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Use of satellites for health, enviornmental justice and vertical profiles</strong>, talk by Eloise Marais at the ISSI Workshop on Geostationary Satellites, 23 March. [<a href="http://maraisresearchgroup.co.uk/Presentations/MaraisEA-ISSI-2023.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Using models and satellite observations to determine the public health burden of rapid air quality degradation in cities in Africa</strong>, talk by Eloise Marais at Workshop for Air Quality in Africa, 18 January. [<a href="http://maraisresearchgroup.co.uk/Presentations/Marais-Kigali-Jan2023.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
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<p><span><strong><span style="color: #3672b5;"><a name="2022"></a>2022</span></strong></span></p>
<p><strong>Health effects of agricultural emissions of ammonia: A focus on the UK with global implications</strong>, talk by Eloise Marais at University of Edinburgh Global Change seminar series, 30 November. <strong><em>Invited</em></strong> [<a href="http://maraisresearchgroup.co.uk/Presentations/Marais-UEdinburgh-Nov2022.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Hazardous effects of a burgeoning space industry on the environment</strong>, talk by Eloise Marais at The Institution of Environmental Sciences webinar series, 22 November. <strong><em>Invited</em></strong> [<a href="http://maraisresearchgroup.co.uk/Presentations/Marais-IES-webinar-Nov2022.pdf" target="_blank" rel="noopener noreferrer">PDF</a>] [<a href="https://www.youtube.com/watch?v=68PrzVryjSw" target="_blank" rel="noopener noreferrer">YouTube Video</a>]<i class="fa fa-youtube-play"></i></p>
<p><strong>Bridging knowledge gaps in atmospheric science: From tropical cities to the remote troposphere and the mesosphere 50-80 km aloft</strong>, talk by Eloise Marais at Harvard University, Cambridge, MA, 9 November. <strong><em>Invited</em></strong> [<a href="http://maraisresearchgroup.co.uk/Presentations/Marais-Harvard-Nov22.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>The impact of anthropogenic air pollution from city to global health</strong>, talk by Karn Vohra at the University of Edinburgh Global Change seminar series, Edinburgh, UK, 9 November. <strong><em>Invited</em></strong> [<a href="http://maraisresearchgroup.co.uk/Presentations/Vohra_GlobalChange_Edin_2022.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Deleterious effects of space sector air pollutant emissions on climate and stratospheric ozone</strong>, talk by Eloise Marais at the Peking University Global Air Quality Conversation seminar series, virtual, 23 September. <strong><em>Invited</em></strong> [<a href="http://maraisresearchgroup.co.uk/Presentations/MaraisEA-PekingU-space-sector-air-pollution.pdf" target="_blank" rel="noopener noreferrer">PDF</a>] </p>
<p><strong>Improving our understanding of upper tropospheric NOx</strong>, poster by Rob Ryan at the iCACGP-IGAC Joint Conference (IGAC), Manchester, UK, 14 September. [<a href="http://maraisresearchgroup.co.uk/Presentations/Ryan_poster2_IGAC_2022.pdf" target="_blank" rel="noopener noreferrer">PDF</a>] </p>
<p><strong>Rapid rise in premature mortality in fast-growing tropical cities due to anthropogenic air pollution</strong>, talk by Karn Vohra at IGAC, Manchester, UK, 13 September. <strong><em>Early Career Researcher Plenary Talk Award</em></strong> [<a href="http://maraisresearchgroup.co.uk/Presentations/Vohra_IGAC_2022.pdf" target="_blank" rel="noopener noreferrer">PDF</a>] </p>
<p><strong>Agricultural emissions of ammonia are the most effective lever for addressing fine particulate matter pollution in the UK</strong>, talk by Eloise Marais at IGAC, Manchester, UK, 13 September. [<a href="http://maraisresearchgroup.co.uk/Presentations/Marais_IGAC_2022.pdf" target="_blank" rel="noopener noreferrer">PDF</a>] </p>
<p><strong>First vertical profile retrievals of NO2, HCHO and aerosols from a MAX-DOAS instrument in Central London</strong>, poster by Rob Ryan at IGAC, Manchester, UK, 12 September. [<a href="http://maraisresearchgroup.co.uk/Presentations/Ryan_poster1_IGAC_2022.pdf" target="_blank" rel="noopener noreferrer">PDF</a>] </p>
<p><strong>Vertical profiles of global tropospheric nitrogen dioxide (NO2) obtained via cloud-slicing TROPOMI partial columns</strong>, poster by Bex Horner at IGAC, Manchester, UK, 12 September. [<a href="http://maraisresearchgroup.co.uk/Presentations/Horner_IGAC_2022.pdf" target="_blank" rel="noopener noreferrer">PDF</a>] </p>
<p><strong>Health burden of air pollution from the oil and gas lifecycle in Texas</strong>, poster by Karn Vohra at IGAC, UK, 12 September. [<a href="http://maraisresearchgroup.co.uk/Presentations/Vohra_poster_IGAC_2022.pdf" target="_blank" rel="noopener noreferrer">PDF</a>] </p>
<p><strong>Sleuthing errors in reactive nitrogen in the global upper troposphere</strong>, talk by Nana Wei at IGAC, Manchester, UK, 12 September. [<a href="http://maraisresearchgroup.co.uk/Presentations/Wei_IGAC_2022.pdf" target="_blank" rel="noopener noreferrer">PDF</a>] </p>
<p><strong>Use of chemical transport models to motivate and inform air quality policies at local, national and global scales</strong>, talk by Eloise Marais at the ERC HEAL Workshop, U. Mannheim, Mannheim, Germany, 7 July. <strong><em>Invited Keynote</em></strong> [<a href="http://maraisresearchgroup.co.uk/Presentations/EAMarais-Mannheim-July2022.pdf" target="_blank" rel="noopener noreferrer">PDF</a>] </p>
<p><strong>Health impact of air pollution linked to the oil and gas lifecycle in Texas</strong>, talk by Karn Vohra at the 10th International GEOS-Chem Meeting (IGC10), Washington University in St. Louis (WUSTL), US, 9 June. [<a href="http://maraisresearchgroup.co.uk/Presentations/VohraK-IGC10-Jun2022.pdf" target="_blank" rel="noopener noreferrer">PDF</a>] </p>
<p><strong>Impact of rocket launch and re-entry heating pollution on ozone and climate</strong>, poster by Eloise Marais at IGC10, WUSTL, US, 8 June. [<a href="http://maraisresearchgroup.co.uk/Presentations/MaraisEA-IGC10-Jun2022.pdf" target="_blank" rel="noopener noreferrer">PDF</a>] </p>
<p><strong>Addressing model uncertainty in upper tropospheric NOx</strong>, talk by Rob Ryan at IGC10, WUSTL, US, 8 June. [<a href="http://maraisresearchgroup.co.uk/Presentations/RyanR-IGC10-Jun2022.pdf" target="_blank" rel="noopener noreferrer">PDF</a>] </p>
<p><strong>Global vertical profiles of tropospheric NO2 from cloud-sliced TROPOMI observations</strong>, talk by Bex Horner at IGC10, WUSTL, US, 8 June. [<a href="http://maraisresearchgroup.co.uk/Presentations/HornerB-IGC10-Jun2022.pdf" target="_blank" rel="noopener noreferrer">PDF</a>] </p>
<p><strong>Reactive nitrogen in the global upper troposphere from aircraft campaigns and GEOS-Chem</strong>, poster by Eloise Marais featuring research by Nana Wei at IGC10, WUSTL, US, 7 June. [<a href="http://maraisresearchgroup.co.uk/Presentations/WeiN-IGC10-Jun2022.pdf" target="_blank" rel="noopener noreferrer">PDF</a>] </p>
<p><strong>Greenhouse gas and air pollutant emissions from power barges (powerships)</strong>, talk by Eloise Marais at the Royal Society of Chemistry Desktop Seminar series, virtual, 1 June. <strong><em>Invited</em></strong> [<a href="http://maraisresearchgroup.co.uk/Presentations/MaraisEA-RSCEnvAdv-DesktopSeminar-Jun2022.pdf" target="_blank" rel="noopener noreferrer">PDF</a>] </p>
<p><strong>The impact of rocket launches and space debris on ozone and climate</strong>, poster by Rob Ryan at the ESA Living Planet Symposium, Bonn, Germany, 24 May. [<a href="http://maraisresearchgroup.co.uk/Presentations/RRyan_ESA-LivingPlanet_Rockets_2022.pdf" target="_blank" rel="noopener noreferrer">PDF</a>] </p>
<p><strong>Challenging our understanding of upper tropospheric NOx</strong>, poster by Rob Ryan at the ESA Living Planet Symposium, Bonn, Germany, 24 May. [<a href="http://maraisresearchgroup.co.uk/Presentations/RRyan_ESA-LivingPlanet_Uptrop_2022.pdf" target="_blank" rel="noopener noreferrer">PDF</a>] </p>
<p><strong>The impact of rockets on climate and stratospheric ozone and Upper tropospheric NOx</strong>, talk by Rob Ryan at University of Melbourne, 1 April. [<a href="http://maraisresearchgroup.co.uk/Presentations/RRyan-UM-Apr2022.pdf" target="_blank" rel="noopener noreferrer">PDF</a>] </p>
<p><strong>The billionaire space tourism race could be one giant leap for air pollution</strong>, talk by Eloise Marais at the UCL Lunch Hour Lecture Series, 1 February. [<a href="http://maraisresearchgroup.co.uk/Presentations/EMarais-UCL-Space-Tourism-2022.pdf" target="_blank" rel="noopener noreferrer">PDF</a>] [<a href="https://www.youtube.com/watch?v=-0HhW1-ybA4" target="_blank" rel="noopener noreferrer">YouTube Video</a>]<i class="fa fa-youtube-play"></i></p>
<p><strong>Severe Health Burden in Tropical Future Megacities from the Rapid Rise in Anthropogenic Air Pollution and Population</strong>, talk by Karn Vohra at the AMS Conference on Atmospheric Chemistry, virtual, 26 January. [<a href="http://maraisresearchgroup.co.uk/Presentations/Vohra_AMS_2022.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>The impact of space launches on global climate and stratospheric ozone</strong>, talk by Rob Ryan at the UCL Physical Geography seminar series, 20 January and AMS Conference on Atmospheric Chemistry, virtual, 26 January. [<a href="Presentations/Ryan_UCL_PG_2022.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Sources and Challenges in Regulating Fine Particles (PM2.5) in UK Cities</strong>, talk by Jamie Kelly at the UCL Physical Geography seminar series, virtual, 20 January. [<a href="Presentations/Kelly_UCL_PG_2022.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
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<p><span><strong><span style="color: #3672b5;"><a name="2021"></a>2021</span></strong></span></p>
<p><strong>Modelling sources of fine particles (PM2.5) in UK cities</strong>, talk by Eloise Marais featuring research by Jamie Kelly at the Investigation of Air Pollution Standing Conference (IAPSC), virtual, 1 December. <strong><em>Invited</em></strong> [<a href="Presentations/Marais_IAPSC_2021.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Air quality and health from the city to the global scale</strong>, talk by Karn Vohra at the University of Birmingham Air Pollution and Atmospheric Chemistry seminar series, virtual, 25 November. <strong><em>Invited</em></strong> [<a href="http://maraisresearchgroup.co.uk/Presentations/Vohra_APAC_2021.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Impact of rocket launches and space debris on ozone and climate</strong>, poster by Rob Ryan at the ESA ATMOS meeting, virtual, 23 November. [<a href="Presentations/Ryan_ESA-ATMOS_2021.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Sleuthing emergent air pollution: From fast-growing tropical cities to the nascent space tourism industry</strong>, talk by Eloise Marais featuring research by Karn Vohra and Robert Ryan at the Harvard Atmospheric and Environmental Chemistry seminar series, virtual, 1 October. <strong><em>Invited</em></strong> [<a href="http://maraisresearchgroup.co.uk/Presentations/Marais-Harvard-Oct2021.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>The future of Earth observation for monitoring and assessing air quality</strong>, talk by Eloise Marais at the DEFRA EO Centre of Excellence, virtual, 21 September. [<a href="http://maraisresearchgroup.co.uk/Presentations/MaraisEA-EO-CoE-2021.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Agricultural NH3 emissions estimated with Earth observations and GEOS-Chem</strong>, talk by Eloise Marais at the IGAC Science Conference, virtual, 15 September. [<a href="http://maraisresearchgroup.co.uk/Presentations/Marais_IGAC_2021.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Long-term air quality trends in tropical future megacities</strong>, talk by Karn Vohra at the IGAC Science Conference, virtual, 15 September, <strong><em>Early Career Scientist Honorary Mention</em></strong>. [<a href="http://maraisresearchgroup.co.uk/Presentations/Vohra_IGAC_2021.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Reactive Nitrogen in the Global Upper Troposphere from Aircraft Campaigns and GEOS-Chem</strong>, poster by Nana Wei at the IGAC Science Conference, virtual, 13 September, <strong><em>Early Career Scientist Honorary Mention</em></strong>. [<a href="http://maraisresearchgroup.co.uk/Presentations/Wei_IGAC_2021.pdf" target="_blank" rel="noopener noreferrer">PDF</a>].</p>
<p><strong>Local, national and regional contributions to PM2.5 pollution in Leicester</strong>, talk by Jamie Kelly at the Leicester Air Quality Forum, virtual, 1 July. [<a href="http://maraisresearchgroup.co.uk/Presentations/Kelly-Leicester-AQF-Jul2021.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Air pollutant emissions in Africa</strong>, talk by Eloise Marais at the Workshop on a Pilot Design for Air Quality in Africa, virtual, 8 June. <strong><em>Invited</em></strong> [<a href="http://maraisresearchgroup.co.uk/Presentations/Marais-Africa-AQ-workshop-Jun2021.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Global premature mortality due to exposure to air pollution from fossil fuels</strong>, talk by Eloise Marais and Karn Vohra at the Great Ormond Street Hospital (GOSH) lunchtime seminar, virtual, 18 May. <strong><em>Invited</em></strong> [<a href="http://maraisresearchgroup.co.uk/Presentations/Marais-Vohra-GOSH-seminar-May2021.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Evaluation of TROPOMI upper tropospheric NO2 using MAX-DOAS measurements at Izaña</strong>, talk by Rob Ryan at the International Workshop on MAX-DOAS, virtual, 11 May. [<a href="http://maraisresearchgroup.co.uk/Presentations/Ryan-MAXDOAS-workshop-2021.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>UK NH3 emissions estimated with Earth Observations</strong>, talk by Eloise Marais at the Joint EIONET/TFEIP meeting, virtual, 6 May. [<a href="http://maraisresearchgroup.co.uk/Presentations/Marais-TFEIP-2021.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Reactive nitrogen in the global upper troposphere from NASA DC8 aircraft campaigns</strong>, poster by Nana Wei at the virtual EGU meeting, 27 April. [<a href="http://maraisresearchgroup.co.uk/Presentations/Wei-vEGU-2021.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>UK air quality during the Spring 2020 lockdown</strong>, talk by Eloise Marais at the University of Birmingham Air Pollution and Atmospheric Chemistry seminar series, 21 April. <strong><em>Invited</em></strong> [<a href="http://maraisresearchgroup.co.uk/Presentations/Marais-UoB-seminar-2021.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Space-based constraints on reactive nitrogen</strong>, talk by Eloise Marais at the MIT Program in Atmospheres, Oceans and Climate seminar series, 5 April. <strong><em>Invited</em></strong> [<a href="http://maraisresearchgroup.co.uk/Presentations/Marais-MIT-PAOC-seminar-2021.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>The future of air pollution in Africa</strong>, talk by Eloise Marais at the African greenhouse gas emissions and air quality Townhall, organized by the Manchester Environmental Research Institute, 30 March. <strong><em>Invited</em></strong> [<a href="http://maraisresearchgroup.co.uk/Presentations/Marais-AfricaAQ-Townhall-2021.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Agricultural ammonia emissions in the UK</strong>, talk by Eloise Marais at the University of Leeds Institute for Climate & Atmospheric Science, 16 March. <strong><em>Invited</em></strong> [<a href="http://maraisresearchgroup.co.uk/Presentations/Marais-ULeeds-seminar-2021.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>The burgeoning charcoal industry in Africa and its influence on air quality and climate</strong>, talk by Eloise Marais at the NCAR workshop on Advancing Air Quality and Carbon Science in Africa, 11 March. [<a href="http://maraisresearchgroup.co.uk/Presentations/Marais_NCAR_workshop_2021.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
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<p><span><strong><span style="color: #3672b5;"><a name="2020"></a>2020</span></strong></span></p>
<p><strong>Shipping emissions in rapidly growing seaports in Africa determined with TROPOMI</strong>, poster by Gongda Lu at the virtual AGU Fall Meeting, 8 December. [<a href="http://maraisresearchgroup.co.uk/Presentations/Gongda_AGU_2020.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Upper tropospheric NO2 retrieved from TROPOMI using cloud-slicing</strong>, poster by Eloise Marais at the virtual AGU Fall Meeting, 7 December. [<a href="http://maraisresearchgroup.co.uk/Presentations/Marais_AGU_2020.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Assessing surface ozone sensitivity in major Indian cities to NOx and VOCs using TROPOMI</strong>, poster by Karn Vohra at the virtual AGU Fall Meeting, 7 December. [<a href="http://maraisresearchgroup.co.uk/Presentations/Vohra_AGU_2020.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Trends and emissions of ammonia and its influence on air quality in the UK</strong>, talk by Eloise Marais at the Centre for Atmospheric Science seminar series, University of Cambridge, 30 November. <strong><em>Invited</em></strong> [<a href="http://maraisresearchgroup.co.uk/Presentations/Marais-UCambridge-seminar-Nov2020.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Air quality and health impact of the charcoal supply chain in Africa</strong>, poster by Alfred Bockarie at the virtual Annual Aerosol Science Conference, 5 November. [<a href="http://maraisresearchgroup.co.uk/Presentations/Bockarie-AASC-2020.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Evaluating the efficacy of autumn-winter emission controls in the Beijing-Tianjin-Hebei region</strong>, poster by Gongda Lu at the virtual Annual Aerosol Science Conference, 5 November. [<a href="http://maraisresearchgroup.co.uk/Presentations/Lu-AASC-2020.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Fossil-fuel related PM2.5 pollution global mortality estimates using GEOS-Chem</strong>, talk by Karn Vohra at the virtual Annual Aerosol Science Conference, 5 November. [<a href="http://maraisresearchgroup.co.uk/Presentations/Vohra-AASC-2020.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Using satellites to determine pollutant emissions on the ground and atmospheric composition up above</strong>, talk by Eloise Marais at the UCL Physical Geography seminar series, 29 October. [<a href="http://maraisresearchgroup.co.uk/Presentations/Marais-PG-UCL-seminar-Oct2020.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Air quality and climate impact of the burgeoning charcoal industry in Africa</strong>, talk by Eloise Marais featuring research by Alfred Bockarie, UCL Human Geography seminar series, 20 October. [<a href="http://maraisresearchgroup.co.uk/Presentations/Marais-UCL-HG-seminar-Oct2020.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Assessment of UK ammonia emissions with satellites</strong>, talk by Eloise Marais featuring research by Alok Pandey, Environment Agency GHG-AQ Workshop, 29 September. [<a href="http://maraisresearchgroup.co.uk/Presentations/Marais-EA-GHG-AQ-workshop.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Long-term trends in air quality in tropical megacities using Earth observations</strong>, talk by Karn Vohra at the virtual GEOS-Chem Europe User's Meeting, 1-2 September. [<a href="http://maraisresearchgroup.co.uk/Presentations/Vohra_GCE1_poster_2020.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Evaluating the efficacy of autumn-winter emission controls in the Beijing-Tianjin-Hebei region</strong>, poster by Gongda Lu at the virtual GEOS-Chem Europe User's Meeting, 1-2 September. [<a href="http://maraisresearchgroup.co.uk/Presentations/Lu_GCE1_poster_2020.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Characterizing upper troposphere reactive nitrogen with aircraft measurements</strong>, poster by Nana Wei at the virtual GEOS-Chem Europe User's Meeting, 1-2 September. [<a href="http://maraisresearchgroup.co.uk/Presentations/Wei_GCE1_poster_2020.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>UK NH3 emissions derived with IASI and GEOS-Chem</strong>, talk by Alok Pandey at the virtual GEOS-Chem Europe User's Meeting, 1-2 September. [<a href="http://maraisresearchgroup.co.uk/Presentations/Pandey_GCE1_talk_2020.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Air quality and climate forcing of the charcoal industry in Africa</strong>, talk by Alfred Bockarie at the virtual GEOS-Chem Europe User's Meeting, 1-2 September. [<a href="http://maraisresearchgroup.co.uk/Presentations/Bockarie_GCE1_talk_2020.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Air quality trends from long-term Earth observations over tropical megacities of the future</strong>, talk by Karn Vohra at the UK National Centre for Earth Observations conference, 25 June. [<a href="http://maraisresearchgroup.co.uk/Presentations/Vohra-NCEO-2020.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Tool for recording and assessing the city environment (TRACE)</strong>, talk by Eloise Marais for the Researcher in Residence virtual networking event, 15 June. [<a href="http://maraisresearchgroup.co.uk/Presentations/Marais-RiR-event-15Jun2020.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Air pollution in the UK constrained with in situ, remote and synthetic data</strong>, talk by Eloise Marais for the Defra Air Quality and Industrial Emissions (AQIE) Evidence Team meeting, 11 June. [<a href="http://maraisresearchgroup.co.uk/Presentations/Marais-aqie-Jun2020.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>First estimate of NO2 in the upper troposphere from TROPOMI</strong>, talk by Eloise Marais for Sharing Geosciences Online, EGU General Assembly, 4-8 May. [<a href="http://maraisresearchgroup.co.uk/Presentations/Marais-EGU-2020.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>A space-based perspective of trends in air quality in major cities in the UK and India</strong>, talk by Karn Vohra for Sharing Geosciences Online, EGU General Assembly, 4-8 May. [<a href="http://maraisresearchgroup.co.uk/Presentations/Vohra-EGU-2020.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Air quality and climate impact of the charcoal industry in Africa</strong>, talk by Eloise Marais featuring research by Alfred Bockarie, University of Leicester College of Science and Engineering Faculty Seminar Series, University of Leicester, UK, 29 April. [<a href="http://maraisresearchgroup.co.uk/Presentations/Marais-UoL-Research-Bites-29April2020.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>First estimate of upper tropospheric NO2 from TROPOMI</strong>, talk by Eloise Marais, EOS Group Meeting, University of Leicester, UK, 3 April. [<a href="http://maraisresearchgroup.co.uk/Presentations/Marais-EOS-grp-meeting-Apr2020.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Air pollution monitoring using instruments in space</strong>, talk by Eloise Marais, Oxford Air Quality Meeting, Keble College, University of Oxford, UK, 10 January. <strong><em>Invited</em></strong> [<a href="http://maraisresearchgroup.co.uk/Presentations/Marais-OAQM-Oxford-Jan-2020.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
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<p><span><strong><span style="color: #3672b5;"><a name="2019"></a>2019</span></strong></span></p>
<p><strong>Air quality and climate impact of the charcoal supply chain in Africa</strong>, talk by Alfred Bockarie, Air Pollution and Atmospheric Chemistry seminar series, University of Birmingham, UK, 15 November. [<a href="http://maraisresearchgroup.co.uk/Presentations/Bockarie-APAC-UoB-Nov-2019.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Health impacts of future fossil fuels in Africa</strong>, talk by Eloise Marais, KNMI, De Bilt, 12 November. <strong><em>Invited</em></strong> [<a href="http://maraisresearchgroup.co.uk/Presentations/Marais-KNMI-Nov-2019.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Trends in city-wide air quality as observed from space</strong>, poster by Karn Vohra, Atmospheric Composition Training Course, Babeş-Bolyai University, Cluj-Napoca, Romania, 4 November.[<a href="http://maraisresearchgroup.co.uk/Presentations/Vohra-Training-Romania-Nov-2019.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Satellites up above monitor the air down below</strong>, talk by Karn Vohra, Speak Out for Engineering West Midlands Finals, University of Birmingham, Birmingham, UK, 17 October. <strong><em>First Prize</em></strong> [<a href="http://maraisresearchgroup.co.uk/Presentations/Vohra-SOFE-Oct-2019.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Validation of the Chinese National Environmental Monitoring Network with measurements from the APHH campaign</strong>, poster by Gongda Lu, 17th workshop on Atmospheric Chemistry and Air Pollution, University of Birmingham, UK, 27 September. [<a href="http://maraisresearchgroup.co.uk/Presentations/Lu-AQ-workshop-Sep-2019.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Using satellite observations to launch urban air quality monitoring into the 21st Century</strong>, talk by Eloise Marais, Connected Places Catapult Lunchtime Talk, 10 September. [<a href="http://maraisresearchgroup.co.uk/Presentations/Marais-CPCatapult-talk-Sep2019.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Challenges and opportunities developing emission inventories for Africa</strong>, talk by Eloise Marais, Health Effects Institute webinar on Understanding the Sources of Outdoor Air Pollution in Sub-Saharan Africa, 21 August. [<a href="http://maraisresearchgroup.co.uk/Presentations/Marais-HEI-webinar-Aug2019.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Air quality and climate impact of charcoal use in Africa</strong>, talk by Alfred Bockarie, RMetS Conference for Early Career and Young Scientist, University of Birmingham, Birmingham, 4 July. [<a href="http://maraisresearchgroup.co.uk/Presentations/Bockarie-RMetS-2019.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Launching urban air quality monitoring into the 21st century</strong>, talk by Eloise Marais, 11th Regional Networking Event, St. James’ Park, Newcastle upon Tyne, 15 May. [<a href="http://maraisresearchgroup.co.uk/Presentations/Marais-RegNetEv-15May2019.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Air quality and climate impact of charcoal use in Africa</strong>, talk by Eloise Marais on behalf of Alfred Bockarie, 9th International GEOS-Chem User’s Meeting, Harvard University, Cambridge, MA, 9 May. [<a href="http://maraisresearchgroup.co.uk/Presentations/Bockarie-IGC9-2019.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Using satellite observations to monitor long-term changes in air quality in cities</strong>, talk by Karn Vohra, Doctoral Conference 2019, University of Birmingham, Birmingham, 8 May. [<a href="http://maraisresearchgroup.co.uk/Presentations/Vohra-GEES-2019.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Evaluating the efficacy of autumn winter emission controls in the Beijing Tianjin Hebei region</strong>, poster by Gongda Lu, 9th International GEOS-Chem User’s Meeting, Harvard University, Boston, 8 May. [<a href="http://maraisresearchgroup.co.uk/Presentations/Lu-IGC9-2019.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Emission inventory for charcoal production use and truck transport in Africa</strong>, talk by Alfred Bockarie, Doctoral Student Conference, University of Birmingham, Birmingham, 7 May. [<a href="http://maraisresearchgroup.co.uk/Presentations/Bockarie-GEES-2019.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Health Impacts of Future Fossil Fuel Emissions in Africa</strong>, talk by Eloise Marais, 9th International GEOS-Chem User’s Meeting, Harvard University, Boston, 6 May. [<a href="http://maraisresearchgroup.co.uk/Presentations/Marais-IGC9-2019.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Launching urban air quality into the 21st century</strong>, talk by Eloise Marais, Free Cake Fridays, Innovation Hub, University of Leicester, 26 April. <strong><em>Invited</em> </strong> [<a href="http://maraisresearchgroup.co.uk/Presentations/Marais-UoL-26Apr2019.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Air quality and climate impact of charcoal use in Africa</strong>, poster by Alfred Bockarie, EGU, Vienna, Austria, 5 April. [<a href="http://maraisresearchgroup.co.uk/Presentations/Bockarie-EGU-2019.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Diagnosing regional air quality using Earth observations and GEOS-Chem</strong>, talk by Eloise Marais, CLCR and EOS Meeting, University of Leicester, UK, 22 March. [<a href="http://maraisresearchgroup.co.uk/Presentations/Marais-CLCR-EOS-2019.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Challenges and opportunities monitoring air quality in Africa using satellite observations</strong>, talk by Eloise Marais, Royal Meteorological Society National Meeting on Air Pollution in Megacities, University of Leeds, 20 March. <strong><em>Invited</em> </strong> [<a href="http://maraisresearchgroup.co.uk/Presentations/Marais-RMetSoc-2019.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Air pollution in Africa and the impact on health</strong>, talk by Eloise Marais at the Environment, Earth and Ecosystem Sciences seminar, Open University, 19 February. <strong><em>Invited</em> </strong> [<a href="http://maraisresearchgroup.co.uk/Presentations/Marais-OU-2019.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
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<p><span><strong><span style="color: #3672b5;"><a name="2018"></a>2018</span></strong></span></p>
<p><strong>Using Earth observations to monitor city-wide air quality</strong>, poster by Karn Vohra, AGU Fall Meeting 2018, Washington DC, USA, 14 December. [<a href="http://maraisresearchgroup.co.uk/Presentations/Vohra-AGU-Meeting-2018.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Integrating Earth observations in the UK air quality management strategy</strong>, poster by Eloise Marais, AGU Fall Meeting, Washington, DC, 13 December. [<a href="http://maraisresearchgroup.co.uk/Presentations/Marais-AGU-2018.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Validation of satellite observations for monitoring long-term changes in air quality in cities</strong>, poster by Karn Vohra, NCAS Air Quality Symposium, University of Leeds, Leeds, 13 November. [<a href="http://maraisresearchgroup.co.uk/Presentations/Vohra-NCAS-talk-2018.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>A Space-based perspective of city-wide trends in NO2 for cities at different developmental stages</strong>, talk by Karn Vohra, NCAS Air Quality Symposium, University of Leeds, Leeds, 13 November. [<a href="http://maraisresearchgroup.co.uk/Presentations/Vohra-NCAS-poster-2018.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Enhancing air quality monitoring and assessment in Africa and the UK with Earth observations</strong>, talk by Eloise Marais, Harvard Special Seminar, Harvard University, 8 November. <strong><em>Invited</em> </strong> [<a href="http://maraisresearchgroup.co.uk/Presentations/Marais-Harvard-2018.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Building capacity to monitor and assess air quality in Africa</strong>, talk by Eloise Marais, Air Pollution Extremes Workshop, Columbia University, 1-2 November. <strong><em>Invited</em> </strong> [<a href="http://maraisresearchgroup.co.uk/Presentations/Marais-AQ-Extremes-Workshop.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Validation of satellite observations for monitoring long-term changes in air quality in cities</strong>, talk by Karn Vohra, NCEO Atmosphere-Biosphere Meeting, Milton Hill House, Oxfordshire, UK, 1 November. [<a href="http://maraisresearchgroup.co.uk/Presentations/Vohra-NCEO-Atm-Bio-2018.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>City sustainability with satellites</strong>, talk by Eloise Marais, Future Cities Catapult, London, UK, 22 October. <strong><em>Invited</em> </strong> [<a href="http://maraisresearchgroup.co.uk/Presentations/Marais_fcc_visit_22Oct2018.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Can satellites aid in improving air quality in your city?</strong>, talk by Karn Vohra, Research Showcase, University of Birmingham, Birmingham, 9 October. [<a href="http://maraisresearchgroup.co.uk/Presentations/Vohra-Research-Showcase-2018.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>First steps developing a tool to monitor city-wide air quality using Earth Observations</strong>, poster by Karn Vohra, IGAC Science Conference 2018, Takamatsu, Japan, 28 September. [<a href="http://maraisresearchgroup.co.uk/Presentations/Vohra-IGAC-2018.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Monitoring City-wide air quality using Earth Observations</strong>, talk by Karn Vohra, NCEO Conference 2018, University of Birmingham, Birmingham, 6 September. [<a href="http://maraisresearchgroup.co.uk/Presentations/Vohra-NCEO-Conference-2018.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Using satellites to monitor air quality in cities</strong>, talk by Eloise Marais, Council for Scientific and Industrial Research, Pretoria, South Africa, 24 August. <strong><em>Invited</em> </strong> [<a href="http://maraisresearchgroup.co.uk/Presentations/Marais_CSIR_Aug2018.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Assessing the efficacy of air quality policies in the Jing-Jin-Ji region using satellite observations</strong>, poster by Gongda Lu, 4th Atmospheric Pollution and Human Health in a Chinese Megacity Programme Meeting, University of Edinburgh, Edinburgh, 19 July. [<a href="http://maraisresearchgroup.co.uk/Presentations/Lu-APHH-2018.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Emission inventory for charcoal production use and truck transport in Africa</strong>, poster by Alfred Bockarie, RMetS Conference for Early Career and Young Scientist, University of York, York, 5 July. <em><strong>Outstanding student poster award</strong></em> [<a href="http://maraisresearchgroup.co.uk/Presentations/Bockarie-RMetS-2018.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Monitoring air pollution in Birmingham from the ground up</strong>, poster by Karn Vohra, Research Poster Conference 2018, University of Birmingham, Birmingham, UK, 13 June. [<a href="http://maraisresearchgroup.co.uk/Presentations/Vohra-RPC-2018.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Using Earth observations to monitor air quality and address uncertainties in atmospheric composition</strong>, talk by Eloise Marais, NCEO ATOM-BIO meeting, Edinburgh, UK, 30-31 May. [<a href="http://maraisresearchgroup.co.uk/Presentations/Marais-NCEO-ATOM-BIO_May2018.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Monitoring air pollution in Birmingham from the ground up</strong>, poster by Karn Vohra, Doctoral Conference 2018, University of Birmingham, Birmingham, 3 May. [<a href="http://maraisresearchgroup.co.uk/Presentations/Vohra-GEES-2018.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>City sustainability with satellites</strong>, talk by Eloise Marais, Satellite Applications Catapult, Harwell Campus, UK, 12 April. <strong><em>Invited</em> </strong> [<a href="http://maraisresearchgroup.co.uk/Presentations/Marais_SAC_brown_bag.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Impact of inefficient combustion sources in Africa on pollution over the Atlantic Ocean</strong>, talk by Eloise Marais, AMS 98th Annual Meeting, Austin, TX, 9 January. [<a href="http://maraisresearchgroup.co.uk/Presentations/Marais_AMS_9Jan2018.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
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<p><span><strong><span style="color: #3672b5;"><a name="2017">2017</a></span></strong></span></p>
<p><strong>Using Google Location History to track personal exposure to air pollution</strong>, talk by Eloise Marais, AGU Fall Meeting, New Orleans, LA, 13 December. [<a href="http://maraisresearchgroup.co.uk/Presentations/Marais_AGU_2017.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Dual air quality benefit of SO2 emission controls by decreasing sulfate and secondary organic aerosol</strong>, talk by Eloise Marais, Centre for Atmospheric Science seminar series, University of Cambridge, UK, 20 November. <strong><em>Invited</em> </strong> [<a href="http://maraisresearchgroup.co.uk/Presentations/Marais_UCambridge_20Nov2017.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Trees and atmospheric chemistry</strong>, talk by Eloise Marais, School of Earth and Environmental Sciences, University of St Andrews, St Andrews, UK, 7 November. <strong><em>Invited</em> </strong> [<a href="http://maraisresearchgroup.co.uk/Presentations/Marais_StAndrews_2017.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Air quality co-benefit of SO2 emission controls to decrease biogenic organic aerosol and sulfate</strong>, talk by Eloise Marais, Centre for Ecology and Hydrology, Edinburgh, 15 October. <strong><em>Invited</em> </strong> [<a href="http://maraisresearchgroup.co.uk/Presentations/Marais_CEH_15Oct2017.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Modelling biogenic secondary organic aerosol</strong>, talk by Eloise Marais, Royal Society of Chemistry Science Meeting, University of Birmingham, UK, 27 June. <strong><em>Invited</em> </strong> [<a href="http://maraisresearchgroup.co.uk/Presentations/Marais_RSC_Chemistry_meeting_27June2017.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Evidence of 1991-2013 decrease in biogenic organic aerosol in response to SO2 emission controls</strong>, poster by Eloise Marais, Faraday Discussion on Atmospheric Chemistry in the Anthropocene, York, UK, 22-24 May. [<a href="http://maraisresearchgroup.co.uk/Presentations/Marais_Faraday_2017.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Air quality co-benefit of SO2 emission controls to decrease biogenic organic aerosol and sulfate</strong>, talk by Eloise Marais, Geosciences seminar series, University of Edinburgh, Edinburgh, UK, 17 May. <strong><em>Invited</em> </strong> [<a href="http://maraisresearchgroup.co.uk/Presentations/Marais_UEdinburgh_17May2017.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Using OMI cloud-sliced NO2 and GEOS-Chem to better understand dynamics of NOx in the upper troposphere</strong>, talk by Eloise Marais, 8th International GEOS-Chem Meeting, Cambridge, MA, 1-4 May. [<a href="http://maraisresearchgroup.co.uk/Presentations/Marais_IGC8_2017.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Nitrogen oxides in the global upper troposphere interpreted with cloud-sliced NO2 from the Ozone Monitoring Instrument</strong>, talk by Eloise Marais, EGU General Assembly, Vienna, Austria, 23-28 April. [<a href="http://maraisresearchgroup.co.uk/Presentations/Marais_EGU_2017.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>The GEOS-Chem chemical transport model: Introduction and application to understanding atmospheric composition and air quality</strong>, talk by Eloise Marais, Academic Programmers Special Interest Group, University of Birmingham, UK, 13 February. <strong><em>Invited</em> </strong> [<a href="http://maraisresearchgroup.co.uk/Presentations/Marais_UoB_SIG_13Feb2017.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><span><strong><span style="color: #3672b5;"><a name="2016">2016</a></span></strong></span></p>
<p><strong>Co-benefit of anthropogenic emission controls on biogenic secondary organic aerosol</strong>, talk by Eloise Marais, Geography seminar series, University of Birmingham, UK, 8 July. <strong><em>Invited</em> </strong> </p>
<p><strong>Aqueous-phase mechanism for secondary organic aerosol formation from isoprene: Application to the Southeast US and co-benefit of SO2 emission controls</strong>, talk by Eloise Marais, Martin/Keutsch Research Group Meeting, Harvard University, Cambridge, MA, 28 April. <strong><em>Invited</em> </strong> </p>
<p><strong>Co-benefit of SO2 emission controls on decline in Southeast US 1991-2013 sulfate and organic aerosol</strong>, talk by Eloise Marais, Earth, Atmospheric, and Planetary Sciences seminar series, MIT, Cambridge, MA, 19 February. <strong><em>Invited</em> </strong> </p>
<p><strong>Air quality in Africa: A space-based perspective</strong>, talk by Eloise Marais, Texas A&M Atmospheric Sciences seminar series, College Station, TX, 11 February. <strong><em>Invited</em> </strong> </p>
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<p><span><strong><span style="color: #3672b5;"><a name="2015"></a>2015</span></strong></span></p>
<p><strong>Non-methane volatile organic compounds in Africa: A view from space</strong>, talk by Eloise Marais, Chemistry seminar series, Rhodes University, South Africa, 16 November. <strong><em>Invited</em> </strong> </p>
<p><strong>Aqueous-phase mechanism for secondary organic aerosol formation from isoprene: Application to the Southeast US and co-benefit of SO2 emission controls</strong>, talk by Eloise Marais, Civil and Environmental Engineering seminar series, Georgia Institute of Technology, Atlanta, GA, 28 October. <strong><em>Invited</em> </strong> </p>
<p><strong>Ozone air quality in Nigeria and isoprene organic aerosol yields and composition in the Southeast US</strong>, talk by Eloise Marais, seminar presented at Universities of East Anglia, York, Leeds, and Manchester, UK, May. <strong><em>Invited</em> </strong> </p>
<p><strong>Updated GEOS-Chem isoprene secondary organic aerosol mechanism</strong>, talk by Eloise Marais, 7th International GEOS-Chem Meeting, Cambridge, MA, 4-7 May. </p>
<p><strong>Improved understanding of Southeast US isoprene SOA using ground (SOAS), aircraft (SEAC4RS), satellite (MODIS, OMI), and model (GEOS-Chem) data</strong>, talk by Eloise Marais, NASA SEAC4RS Science Meeting, Pasadena, CA, 28 April-1 May.</p>
<p><strong>Isoprene organic aerosol yields quantified with space-based relationships between aerosol optical depth and formaldehyde: contrasting regimes in Africa and the Southeast US</strong>, talk by Eloise Marais, seminar at the Cooperative Institute for Research in Environmental Sciences, University of Colorado, Boulder, CO, 11 February. <strong><em>Invited</em> </strong></p>
<p><strong>Shedding light on air quality in Africa using satellite observations</strong>, talk by Eloise Marais, Atmospheric Chemistry Observations & Modeling seminar series, National Center for Atmospheric Research, Boulder, CO, 9 February. <strong><em>Invited</em> </strong></p>
<p><span><strong><span style="color: #3672b5;"><a name="2014-2010"></a>2014-2010</span></strong></span></p>
<p><strong>Shedding light on air quality in Africa using the Aura observation platform</strong>, talk by Eloise Marais, NASA Aura Science Team Meeting, College Park, MD, 15-18 September, 2014.</p>
<p><strong>Non-methane volatile organic compounds in Africa: a view from space</strong>, talk by Eloise Marais, Unit of Envrionmental Sciences and Management, North-West University, Potchefstroom, South Africa, 28 March, 2014. <strong><em>Invited</em> </strong></p>
<!---<p><span><strong><span style="color: #3672b5;"><a name="2013-2010"></a>2013-2010</span></strong></span></p>--->
<p><strong>Air quality over Nigeria</strong>, talk by Eloise Marais, 6th International GEOS-Chem Meeting, Cambridge, MA, 6-9 May, 2013.</p>
<p><strong>Impact of economic growth on air quality in Nigeria</strong>, talk by Eloise Marais, EGU General Assembly, Vienna, Austria, 7-12 April, 2013.</p>
<!---<p><span><strong><span style="color: #3672b5;"><a name="2012"></a>2012</span></strong></span></p>--->
<p><strong>Using OMI HCHO to test biogenic and anthropogenic emission inventories in Africa</strong>, talk by Eloise Marais, NASA Aura Science Team Meeting, Pasadena, CA, 1-3 October, 2012.</p>
<p><strong>Isoprene emissions in Africa inferred from OMI HCHO</strong>, poster by Eloise Marais, Gordon Research Conference on Biogenic Hydrocarbons and the Atmosphere, Lewiston, ME, 24-29 June, 2012. </p>
<p><strong>Isoprene emissions in Africa inferred from OMI HCHO</strong>, talk by Eloise Marais, AMS First Conference on Atmospheric Biogeosciences, Boston, MA, 29 May-1 June. <strong><em>Outstanding student presentation award</em></strong>, 2012.</p>
<p><strong>Isoprene emissions in Africa inferred from OMI HCHO</strong>, poster by Eloise Marais, EGU General Assembly, Vienna, Austria, 22-27 April. <strong><em>Outstanding student poster award</em></strong>, 2012. </p>
<!---<p><span><strong><span style="color: #3672b5;"><a name="2011"></a>2011</span></strong></span></p>--->
<p><strong>Using OMI formaldehyde (HCHO) observations to estimate isoprene emissions over Africa</strong>, talk on behalf of Eloise Marais by Daniel J. Jacob, NASA Aura Science Team Meeting, Helsinki, Finland, 13-15 September, 2011.</p>
<p><strong>Using GEOS-Chem and OMI HCHO to estimate isoprene emissions over Africa, </strong>talk by Eloise Marais, 5th International GEOS-Chem Meeting, Cambridge, MA, 2-5 May, 2011.</p>
<!---<p><span><strong><span style="color: #3672b5;"><a name="2010"></a>2010</span></strong></span></p>--->
<p><strong>Using OMI HCHO observations as a constraint on isoprene emissions over Africa</strong>, poster by Eloise Marais, NASA Aura Science Team Meeting, Boulder, CO, 27-29 September, 2010. [<a href="http://maraisresearchgroup.co.uk/Presentations/Marais_Aura_STM_2010.pdf" target="_blank" rel="noopener noreferrer">PDF</a>]</p>
<p><strong>Deriving isoprene emissions for the African continent using space-based formaldehyde measurements</strong>, poster by Eloise Marais, Gordon Research Conference on Biogenic Hydrocarbons and the Atmosphere, Le Diablerets, Switzerland, 23-28 May, 2010.</p>
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