Concentrations and Sources of VOCs during wintertime urban pollution at Fairbanks, Alaska
International audience 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. I...
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ftunivlyon:oai:HAL:insu-03914087v1 2024-05-19T07:35:57+00:00 Concentrations and Sources of VOCs during wintertime urban pollution at Fairbanks, Alaska Temime-Roussel, Brice Cesler‐maloney, Meeta Chazeau, Benjamin Ijaz, Amna Brett, Natalie Law, Kathy S. Bekki, Slimane Mao, Jingqiu Ketcherside, Damien Selimovic, Vanessa Hu, Lu Simpson, William, R. d'Anna, B. Laboratoire Chimie de l'environnement (LCE) Aix Marseille Université (AMU)-Institut de Chimie - CNRS Chimie (INC-CNRS)-Centre National de la Recherche Scientifique (CNRS) Department of Chemistry and Biochemistry Fairbanks University of Alaska Fairbanks (UAF) Geophysical Institute Fairbanks Laboratory of Atmospheric Chemistry Paul Scherrer Institute (LAC) Paul Scherrer Institute (PSI) TROPO - LATMOS Laboratoire Atmosphères, Milieux, Observations Spatiales (LATMOS) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) STRATO - LATMOS University of Montana Laboratoire Chimie et Environnement (LCE) Université Jean Monnet - Saint-Étienne (UJM) Chicago, United States 2022-12 https://insu.hal.science/insu-03914087 en eng HAL CCSD insu-03914087 https://insu.hal.science/insu-03914087 AGU Fall Meeting 2022 https://insu.hal.science/insu-03914087 AGU Fall Meeting 2022, Dec 2022, Chicago, United States. pp.A51J-04 [SDE]Environmental Sciences info:eu-repo/semantics/conferenceObject Conference papers 2022 ftunivlyon 2024-04-25T01:28:25Z International audience 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. Conference Object Arctic Alaska Université de Lyon: HAL |
institution |
Open Polar |
collection |
Université de Lyon: HAL |
op_collection_id |
ftunivlyon |
language |
English |
topic |
[SDE]Environmental Sciences |
spellingShingle |
[SDE]Environmental Sciences Temime-Roussel, Brice Cesler‐maloney, Meeta Chazeau, Benjamin Ijaz, Amna Brett, Natalie Law, Kathy S. Bekki, Slimane Mao, Jingqiu Ketcherside, Damien Selimovic, Vanessa Hu, Lu Simpson, William, R. d'Anna, B. Concentrations and Sources of VOCs during wintertime urban pollution at Fairbanks, Alaska |
topic_facet |
[SDE]Environmental Sciences |
description |
International audience 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. |
author2 |
Laboratoire Chimie de l'environnement (LCE) Aix Marseille Université (AMU)-Institut de Chimie - CNRS Chimie (INC-CNRS)-Centre National de la Recherche Scientifique (CNRS) Department of Chemistry and Biochemistry Fairbanks University of Alaska Fairbanks (UAF) Geophysical Institute Fairbanks Laboratory of Atmospheric Chemistry Paul Scherrer Institute (LAC) Paul Scherrer Institute (PSI) TROPO - LATMOS Laboratoire Atmosphères, Milieux, Observations Spatiales (LATMOS) Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) STRATO - LATMOS University of Montana Laboratoire Chimie et Environnement (LCE) Université Jean Monnet - Saint-Étienne (UJM) |
format |
Conference Object |
author |
Temime-Roussel, Brice Cesler‐maloney, Meeta Chazeau, Benjamin Ijaz, Amna Brett, Natalie Law, Kathy S. Bekki, Slimane Mao, Jingqiu Ketcherside, Damien Selimovic, Vanessa Hu, Lu Simpson, William, R. d'Anna, B. |
author_facet |
Temime-Roussel, Brice Cesler‐maloney, Meeta Chazeau, Benjamin Ijaz, Amna Brett, Natalie Law, Kathy S. Bekki, Slimane Mao, Jingqiu Ketcherside, Damien Selimovic, Vanessa Hu, Lu Simpson, William, R. d'Anna, B. |
author_sort |
Temime-Roussel, Brice |
title |
Concentrations and Sources of VOCs during wintertime urban pollution at Fairbanks, Alaska |
title_short |
Concentrations and Sources of VOCs during wintertime urban pollution at Fairbanks, Alaska |
title_full |
Concentrations and Sources of VOCs during wintertime urban pollution at Fairbanks, Alaska |
title_fullStr |
Concentrations and Sources of VOCs during wintertime urban pollution at Fairbanks, Alaska |
title_full_unstemmed |
Concentrations and Sources of VOCs during wintertime urban pollution at Fairbanks, Alaska |
title_sort |
concentrations and sources of vocs during wintertime urban pollution at fairbanks, alaska |
publisher |
HAL CCSD |
publishDate |
2022 |
url |
https://insu.hal.science/insu-03914087 |
op_coverage |
Chicago, United States |
genre |
Arctic Alaska |
genre_facet |
Arctic Alaska |
op_source |
AGU Fall Meeting 2022 https://insu.hal.science/insu-03914087 AGU Fall Meeting 2022, Dec 2022, Chicago, United States. pp.A51J-04 |
op_relation |
insu-03914087 https://insu.hal.science/insu-03914087 |
_version_ |
1799474983780483072 |