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Title |
Nitrogen isotopes (?15N) and oxygen isotope anomalies (?17O, ?18O) in atmospheric nitrogen dioxide : a new perspective for isotopic constraints on oxidation and aerosols formation processes |
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Communication |
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2021 |
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EGU General Assembly 2021, 10-30 april 2021, Vienna, Austria |
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1215 |
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EGU21-2634 |
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8511 |
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Brice Temime Roussel, Meeta Cesler-Maloney, Benjamin Chazeau, Amna Ijaz, Natalie Brett, Katharine Law, Slimane Bekki, Jingqiu Mao, Damien Ketcherside, Vanessa Selimovic, Lu Hu, William R. Simpson, Barbara D'Anna |
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Title |
Concentrations and Sources of VOCs during wintertime urban pollution at Fairbanks, Alaska |
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Communication |
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Year |
2022 |
Publication |
AGU Fall Meeting 2022, 11-15 December 2023, San Francisco, USA |
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2022 |
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A51J-04 |
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Abstract |
Fairbanks, Alaska is an urban area that has multiple local emission sources including power plants, domestic heating, and mobile sources, leading to severe wintertime pollution events during cold stable episodes where strong temperature inversions limit pollutant dispersion. In order to evaluate the individual contribution of these sources on Volatile Organic Compounds (VOCs) concentrations, ground-based measurements were carried out at high temporal resolution (2 minutes) using on-line instrumentation (Proton Transfer Reaction Time of Flight Mass Spectrometer: PTR-ToF-MS) during the winter 2022 in downtown Fairbanks as part of the Alaskan Layered Pollution and Chemical Analysis (ALPACA) 2022 field experiment. These measurements are recorded in the urban business district, which probably enhances the traffic component compared to domestic heating. From the detailed analysis of the mass spectra acquired in the 0-500 amu range, more than 330 ions were found of interest for further investigation. Source apportionment analysis was performed using Positive Matrix Factorization (PMF) resolved with the multilinear engine (ME-2) approach. Based on their mass spectral profiles, diurnal cycles and correlation with external collocated measurements (gaseous pollutants: CO, CO2, NOx, SO2, ozone, and specific particulate matter markers), the factors identified could be related to mobile sources (gasoline-like and diesel-like traffic), to heating (residential, diesel-like heating in addition to a couple of specific biomass burning, and to non-combustion sources attributed to secondary processes. This study contributes to the Air Pollution in the Arctic: Climate, Environment and Societies – Alaskan Layered Pollution And Chemical Analysis (PACES-ALPACA) initiative. The French contribution is part of the CASPA (Climate-relevant Aerosol Sources and Processes in the Arctic)/IPEV project. |
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1215 |
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8510 |
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Eleftherios Ioannidis |
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2022 |
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8509 |
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Julia Maillard |
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2022 |
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1215 |
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8508 |
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Cynthia H. Whaley, Kathy S. Law, Jens Liengaard Hjorth, Henrik Skov, Stephen R. Arnold, Joakim Langner, Jakob Boyd Pernov, Garance Bergeron, Ilann Bourgeois, Jesper H. Christensen, Rong-You Chien, Makoto Deushi, Xinyi Dong, Peter Effertz, Gregory Faluvegi, Mark Flanner, Joshua S. Fu, Michael Gauss, Greg Huey, Ulas Im, Rigel Kivi, Louis Marelle, Tatsuo Onishi, Naga Oshima, Irina Petropavlovskikh, Jeff Peischl, David A. Plummer, Luca Pozzoli, Jean-Christophe Raut, Tom Ryerson, Ragnhild Skeie, Sverre Solberg, Manu A. Thomas, Chelsea Thompson, Kostas Tsigaridis, Svetlana Tsyro, Steven T. Turnock, Knut von Salzen, David W. Tarasick |
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Arctic tropospheric ozone: assessment of current knowledge and model performance |
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Journal |
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Year |
2023 |
Publication |
Atmospheric Chemistry and Physics |
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Volume |
23 |
Issue |
1 |
Pages |
637-661 |
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1215 |
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1680-7316 |
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yes |
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8507 |
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Model evaluation of short-lived climate forcers for the Arctic Monitoring and Assessment Programme: a multi-species, multi-model study |
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2022 |
Publication |
Atmospheric Chemistry and Physics |
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22 |
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9 |
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5775-5828 |
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1215 |
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1680-7316 |
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yes |
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8506 |
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Title |
Clean air policies are key for successfully mitigating Arctic warming |
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Year |
2022 |
Publication |
Communications Earth & Environment |
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3 |
Issue |
1 |
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1-11 |
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Keywords |
Atmospheric chemistry Climate-change mitigation |
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1255 |
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2662-4435 |
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8505 |
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Eleftherios Ioannidis, Kathy S. Law, Jean-Christophe Raut, Louis Marelle, Tatsuo Onishi, Rachel M. Kirpes, Lucia M. Upchurch, Thomas Tuch, Alfred Wiedensohler, Andreas Massling, Henrik Skov, Patricia K. Quinn, Kerri A. Pratt |
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Modelling wintertime sea-spray aerosols under Arctic haze conditions |
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Journal |
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2023 |
Publication |
Atmospheric chemistry and physics |
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23 |
Issue |
10 |
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5641-5678 |
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1215 |
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1680-7316 |
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8504 |
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Author |
Meeta Cesler-Maloney, William R. Simpson, Tate Miles, Jingqiu Mao, Kathy S. Law, Tjarda J. Roberts |
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Title |
Differences in Ozone and Particulate Matter Between Ground Level and 20 m Aloft are Frequent During Wintertime Surface-Based Temperature Inversions in Fairbanks, Alaska |
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Journal |
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Year |
2022 |
Publication |
Journal of Geophysical Research: Atmospheres |
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127 |
Issue |
10 |
Pages |
e2021JD036215 |
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Alaska inversion ozone PM2.5 pollution vertical |
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1215 |
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2169-8996 |
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yes |
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8503 |
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Author |
Thierry Boulinier |
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Title |
Avian influenza spread and seabird movements between colonies |
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Journal |
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Year |
2023 |
Publication |
Trends in Ecology & Evolution |
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Volume |
38 |
Issue |
5 |
Pages |
391-395 |
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Keywords |
colonial breeding foraging HPAI H5N1 migration movement ecology prospecting spatial disease dynamics |
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333,1151 |
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Bachelor's thesis |
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0169-5347 |
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yes |
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8502 |
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