Articles | Volume 20, issue 9
https://doi.org/10.5194/acp-20-5327-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/acp-20-5327-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Physico-chemical characterization of urban aerosols from specific combustion sources in West Africa at Abidjan in Côte d'Ivoire and Cotonou in Benin in the frame of the DACCIWA program
Laboratoire d'Aérologie, Université de Toulouse, CNRS, UPS,
Toulouse, France
Catherine Liousse
CORRESPONDING AUTHOR
Laboratoire d'Aérologie, Université de Toulouse, CNRS, UPS,
Toulouse, France
Elhadji Thierno Doumbia
Centre National de Recherche Météorologiques (CNRM) UMR 3589, Météo-France/CNRS, Toulouse, France
Armelle Baeza-Squiban
Réponses Moléculaires et Cellulaires aux Xénobiotiques_RMCX, Université Paris Diderot, Unité de Biologie Fonctionnelle et
Adaptative-RMCX, CNRS, UMR 8251, Paris, France
Hélène Cachier
Laboratoire d'Aérologie, Université de Toulouse, CNRS, UPS,
Toulouse, France
Jean-Francois Léon
Laboratoire d'Aérologie, Université de Toulouse, CNRS, UPS,
Toulouse, France
Véronique Yoboué
Laboratoire de Physique de l'Atmosphère, Université
Félix Houphouët-Boigny, Abidjan BPV 34, Côte d'Ivoire
Aristique Barthel Akpo
Laboratoire de Physique du Rayonnement, Université
d'Abomey-Calavi, Abomey-Calavi, Bénin
Corinne Galy-Lacaux
Laboratoire d'Aérologie, Université de Toulouse, CNRS, UPS,
Toulouse, France
Benjamin Guinot
Laboratoire d'Aérologie, Université de Toulouse, CNRS, UPS,
Toulouse, France
Cyril Zouiten
Géosciences Environnement Toulouse, Université de Toulouse,
CNRS, UPS, Toulouse, France
Hongmei Xu
Laboratoire d'Aérologie, Université de Toulouse, CNRS, UPS,
Toulouse, France
Department of Environmental Science and Engineering, Xi'an Jiaotong
University, Xi'an,
China
Eric Gardrat
Laboratoire d'Aérologie, Université de Toulouse, CNRS, UPS,
Toulouse, France
Sekou Keita
UFR Sciences Biologiques, Université Péléforo-Gbon-Coulibaly de Khorogo, BP 1328 Khorogo, Côte d'Ivoire
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This paper discusses the personal exposure characteristics and health implication of PM2.5 and bounded chemical species based on three anthropogenic sources and related populations (domestic fires for women, waste burning for students and motorcycle traffic for drivers) in Abidjan and Cotonou in dry and wet seasons of 2016. This work can be regarded as the first attempt at measuring personal exposure to PM2.5 and its related health risks in underdeveloped countries of Africa.
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This study provides emission factor (EF) data for elemental and organic carbon, total particulate matter and 58 volatile organic compound species for combustion sources specific to Africa to establish emission inventories with less uncertainty. EFs obtained in this study are generally higher than those in the literature whose values are used in emissions inventories for Africa. This shows that particles and VOC emissions were sometimes underestimated and underlines this study's importance.
Natalie M. Mahowald, Longlei Li, Julius Vira, Marje Prank, Douglas S. Hamilton, Hitoshi Matsui, Ron L. Miller, Louis Lu, Ezgi Akyuz, Daphne Meidan, Peter G. Hess, Heikki Lihavainen, Christine Wiedinmyer, Jenny Hand, Maria Grazia Alaimo, Célia Alves, Andres Alastuey, Paulo Artaxo, Africa Barreto, Francisco Barraza, Silvia Becagli, Giulia Calzolai, Shankararaman Chellam, Ying Chen, Patrick Chuang, David D. Cohen, Cristina Colombi, Evangelia Diapouli, Gaetano Dongarra, Konstantinos Eleftheriadis, Johann Engelbrecht, Corinne Galy-Lacaux, Cassandra Gaston, Dario Gomez, Yenny González Ramos, Roy M. Harrison, Chris Heyes, Barak Herut, Philip Hopke, Christoph Hüglin, Maria Kanakidou, Zsofia Kertesz, Zbigniew Klimont, Katriina Kyllönen, Fabrice Lambert, Xiaohong Liu, Remi Losno, Franco Lucarelli, Willy Maenhaut, Beatrice Marticorena, Randall V. Martin, Nikolaos Mihalopoulos, Yasser Morera-Gomez, Adina Paytan, Joseph Prospero, Sergio Rodríguez, Patricia Smichowski, Daniela Varrica, Brenna Walsh, Crystal Weagle, and Xi Zhao
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This preprint is open for discussion and under review for Atmospheric Chemistry and Physics (ACP).
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Aerosol particles are an important part of the Earth system, but their concentrations are spatially and temporally heterogeneous, as well as variable in size and composition. Here we present a new compilation of PM2.5 and PM10 aerosol observations, focusing on the spatial variability across different observational stations, including composition, and demonstrate a method for comparing the datasets to model output.
Marie Lothon, François Gheusi, Fabienne Lohou, Véronique Pont, Serge Soula, Solène Derrien, Yannick Bezombes, Emmanuel Leclerc, Gilles Athier, Antoine Vial, Alban Philibert, Bernard Campistron, Frédérique Saïd, Corinne Jambert, Jeroen Sonke, Julien Amestoy, Erwan Bargain, Pierre Bosser, Damien Boulanger, Guillaume Bret, Renaud Bodichon, Laurent Cabanas, Guylaine Canut, Jean-Bernard Estrampes, Eric Gardrat, Zaida Gomez Kuri, Jérémy Gueffier, Fabienne Guesdon, Morgan Lopez, Olivier Masson, Pierre-Yves Meslin, Yves Meyerfeld, Nicolas Pascal, Eric Pique, Michel Ramonet, Felix Starck, and Romain Vidal
Atmos. Meas. Tech. Discuss., https://doi.org/10.5194/amt-2024-10, https://doi.org/10.5194/amt-2024-10, 2024
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The Pyrenean Platform for Observation of the Atmosphere (P2OA) is a coupled plain-mountain instrumented platform in southwest France, for the monitoring of climate variables and the study of meteorological processes in a mountainous region. A comprehensive description of this platform is presented for the first time: its instrumentation, the associated dataset, a meteorological characterisation the site. The potential of the P2OA is illustrated through several examples of process studies.
Antonin Soulie, Claire Granier, Sabine Darras, Nicolas Zilbermann, Thierno Doumbia, Marc Guevara, Jukka-Pekka Jalkanen, Sekou Keita, Cathy Liousse, Monica Crippa, Diego Guizzardi, Rachel Hoesly, and Steven J. Smith
Earth Syst. Sci. Data, 16, 2261–2279, https://doi.org/10.5194/essd-16-2261-2024, https://doi.org/10.5194/essd-16-2261-2024, 2024
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Anthropogenic emissions are the result of transportation, power generation, industrial, residential and commercial activities as well as waste treatment and agriculture practices. This work describes the new CAMS-GLOB-ANT gridded inventory of 2000–2023 anthropogenic emissions of air pollutants and greenhouse gases. The methodology to generate the emissions is explained and the datasets are analysed and compared with publicly available global and regional inventories for selected world regions.
Hagninou Elagnon Venance Donnou, Aristide Barthélémy Akpo, Money Ossohou, Claire Delon, Véronique Yoboué, Dungall Laouali, Marie Ouafo-Leumbe, Pieter Gideon Van Zyl, Ousmane Ndiaye, Eric Gardrat, Maria Dias-Alves, and Corinne Galy-Lacaux
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Ozone is a secondary air pollutant that is detrimental to human and plant health. A better understanding of its chemical evolution is a challenge for Africa, where it is still under-sampled. Out of 14 sites examined (1995–2020), high levels of O3 are reported in southern Africa. The dominant chemical processes leading to O3 formation are identified. A decrease in O3 is observed at Katibougou (Mali) and Banizoumbou (Niger), and an increase at Zoétélé (Cameroon) and Skukuza (South Africa).
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The updated analyses of ground-based concentrations and satellite total vertical columns of atmospheric ammonia help us to better understand 21st century ammonia dynamics in sub-Saharan Africa. We conclude that the drivers of trends are agriculture in the dry savanna of Katibougou, Mali; air temperature and agriculture in the wet savanna of Djougou, Benin, and Lamto, Côte d'Ivoire; and leaf area index, air temperature, residential, and agriculture in forests of Bomassa, Republic of Congo.
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This work presents the chemical composition of precipitation from 2018 to 2020 at three sites representative of a south-north transect in Côte d'Ivoire. It includes two urban sites (Abidjan and Korhogo) and one rural site (Lamto). Measured rain chemical content and wet deposition fluxes highlights different dominant sources contributions i.e anthropogenic sources (traffic, construction, industry) at urban sites and biomass burning at the rural site.
Flossie Brown, Gerd A. Folberth, Stephen Sitch, Susanne Bauer, Marijn Bauters, Pascal Boeckx, Alexander W. Cheesman, Makoto Deushi, Inês Dos Santos Vieira, Corinne Galy-Lacaux, James Haywood, James Keeble, Lina M. Mercado, Fiona M. O'Connor, Naga Oshima, Kostas Tsigaridis, and Hans Verbeeck
Atmos. Chem. Phys., 22, 12331–12352, https://doi.org/10.5194/acp-22-12331-2022, https://doi.org/10.5194/acp-22-12331-2022, 2022
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Constance K. Segakweng, Pieter G. van Zyl, Cathy Liousse, Johan P. Beukes, Jan-Stefan Swartz, Eric Gardrat, Maria Dias-Alves, Brigitte Language, Roelof P. Burger, and Stuart J. Piketh
Atmos. Chem. Phys., 22, 10291–10317, https://doi.org/10.5194/acp-22-10291-2022, https://doi.org/10.5194/acp-22-10291-2022, 2022
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A detailed size-resolved assessment of the chemical characteristics of outdoor and indoor aerosols collected in low-income urban settlements in South Africa indicated the significance of household combustion for cooking and space heating – an important source of pollutants in the developing world – to atmospheric chemical composition. The regional impact of industrial sources in the highly industrialised and densely populated north-eastern interior of South Africa was also evident.
Julius Vira, Peter Hess, Money Ossohou, and Corinne Galy-Lacaux
Atmos. Chem. Phys., 22, 1883–1904, https://doi.org/10.5194/acp-22-1883-2022, https://doi.org/10.5194/acp-22-1883-2022, 2022
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Ammonia is one of the main components of nitrogen deposition. Here we use a new model to assess the ammonia emissions from agriculture, the largest anthropogenic source of ammonia. The model results are consistent with earlier estimates over industrialized regions in agreement with observations. However, the model predicts much higher emissions over sub-Saharan Africa compared to earlier estimates. Available observations from surface stations and satellites support these higher emissions.
Jonathan E. Hickman, Niels Andela, Enrico Dammers, Lieven Clarisse, Pierre-François Coheur, Martin Van Damme, Courtney A. Di Vittorio, Money Ossohou, Corinne Galy-Lacaux, Kostas Tsigaridis, and Susanne E. Bauer
Atmos. Chem. Phys., 21, 16277–16291, https://doi.org/10.5194/acp-21-16277-2021, https://doi.org/10.5194/acp-21-16277-2021, 2021
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Ammonia (NH3) gas emitted from soils and biomass burning contributes to particulate air pollution. We used satellite observations of the atmosphere over Africa to show that declines in NH3 concentrations over South Sudan's Sudd wetland in 2008–2017 are related to variation in wetland extent. We also find NH3 concentrations increased in West Africa as a result of biomass burning and increased in the Lake Victoria region, likely due to agricultural expansion and intensification.
Thierno Doumbia, Claire Granier, Nellie Elguindi, Idir Bouarar, Sabine Darras, Guy Brasseur, Benjamin Gaubert, Yiming Liu, Xiaoqin Shi, Trissevgeni Stavrakou, Simone Tilmes, Forrest Lacey, Adrien Deroubaix, and Tao Wang
Earth Syst. Sci. Data, 13, 4191–4206, https://doi.org/10.5194/essd-13-4191-2021, https://doi.org/10.5194/essd-13-4191-2021, 2021
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Most countries around the world have implemented control measures to combat the spread of the COVID-19 pandemic, resulting in significant changes in economic and personal activities. We developed the CONFORM (COvid-19 adjustmeNt Factors fOR eMissions) dataset to account for changes in emissions during lockdowns. This dataset was created with the intention of being directly applicable to existing global and regional inventories used in chemical transport models.
Sekou Keita, Catherine Liousse, Eric-Michel Assamoi, Thierno Doumbia, Evelyne Touré N'Datchoh, Sylvain Gnamien, Nellie Elguindi, Claire Granier, and Véronique Yoboué
Earth Syst. Sci. Data, 13, 3691–3705, https://doi.org/10.5194/essd-13-3691-2021, https://doi.org/10.5194/essd-13-3691-2021, 2021
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This inventory fills the gap in African regional inventories, providing biofuel and fossil fuel emissions that take into account African specificities. It could be used for air quality modeling. We show that all pollutant emissions are globally increasing during the period 1990–2015. Also, West Africa and East Africa emissions are largely due to domestic fire and traffic activities, while southern Africa and northern Africa emissions are largely due to industrial and power plant sources.
Maurin Zouzoua, Fabienne Lohou, Paul Assamoi, Marie Lothon, Véronique Yoboue, Cheikh Dione, Norbert Kalthoff, Bianca Adler, Karmen Babić, Xabier Pedruzo-Bagazgoitia, and Solène Derrien
Atmos. Chem. Phys., 21, 2027–2051, https://doi.org/10.5194/acp-21-2027-2021, https://doi.org/10.5194/acp-21-2027-2021, 2021
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Based on a field experiment conducted in June and July 2016, we analyzed the daytime breakup of continental low-level stratiform clouds over southern West Africa in order to provide complementary guidance for model evaluation during the monsoon season. Those clouds exhibit weaker temperature and moisture jumps at the top compared to marine stratiform clouds. Their lifetime and the transition towards shallow convective clouds during daytime hours depend on their coupling with the surface.
Jean-François Léon, Aristide Barthélémy Akpo, Mouhamadou Bedou, Julien Djossou, Marleine Bodjrenou, Véronique Yoboué, and Cathy Liousse
Atmos. Chem. Phys., 21, 1815–1834, https://doi.org/10.5194/acp-21-1815-2021, https://doi.org/10.5194/acp-21-1815-2021, 2021
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We have investigated the aerosol optical depth (AOD) and its relation to PM2.5 surface concentrations in southern West Africa based on in situ observations (2015–2017 period) and MODIS satellite data (2003–2019). MODIS AODs are validated using a regional network of handheld and automatic sun photometers. Satellite-derived PM2.5 shows an increasing trend during the short dry period that is possibly linked to the increase in anthropogenic emission over this area.
Jan-Stefan Swartz, Pieter G. van Zyl, Johan P. Beukes, Corinne Galy-Lacaux, Avishkar Ramandh, and Jacobus J. Pienaar
Atmos. Chem. Phys., 20, 10637–10665, https://doi.org/10.5194/acp-20-10637-2020, https://doi.org/10.5194/acp-20-10637-2020, 2020
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Statistical modelling of interdependencies between local, regional and global parameters on long-term trends of atmospheric SO2, NO2 and O2 within proximity of the pollution hotspot in South Africa indicated that changes in meteorological conditions and/or variances in source influences contributed to temporal variability. The impact of increased anthropogenic activities and energy demand was evident, while the El Niño–Southern Oscillation made a significant contribution to O3 levels.
G. Calassou, P.-Y. Foucher, and J.-F. Leon
Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLIII-B3-2020, 791–797, https://doi.org/10.5194/isprs-archives-XLIII-B3-2020-791-2020, https://doi.org/10.5194/isprs-archives-XLIII-B3-2020-791-2020, 2020
Alima Dajuma, Kehinde O. Ogunjobi, Heike Vogel, Peter Knippertz, Siélé Silué, Evelyne Touré N'Datchoh, Véronique Yoboué, and Bernhard Vogel
Atmos. Chem. Phys., 20, 5373–5390, https://doi.org/10.5194/acp-20-5373-2020, https://doi.org/10.5194/acp-20-5373-2020, 2020
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A modeling study through COSMO-ART was used to investigate the implication of downward mixing induced by clouds in transporting biomass burning aerosols from central and southern Africa located between 2 and 4 km into the PBL over southern West Africa. Results showed that individual mixing events south of the coast of Côte d’Ivoire due to mid-level convective clouds injects part of the biomass burning plume into the PBL. 15 % of CO mass from the 2–4 km layer is mixed below 1 km.
Pamela Dominutti, Sekou Keita, Julien Bahino, Aurélie Colomb, Cathy Liousse, Véronique Yoboué, Corinne Galy-Lacaux, Eleanor Morris, Laëtitia Bouvier, Stéphane Sauvage, and Agnès Borbon
Atmos. Chem. Phys., 19, 11721–11741, https://doi.org/10.5194/acp-19-11721-2019, https://doi.org/10.5194/acp-19-11721-2019, 2019
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Several field campaigns were performed in southern West Africa in the framework of the DACCIWA project with the purpose of measuring a broad range of atmospheric constituents. Our study presents the analysis of a comprehensive dataset which integrates up to 56 species of VOCs measured at different ambient sites and emission sources. Our detailed VOC estimation for Cote d'Ivoire is 3 to 6 times higher than the whole of Europe, transportation being the dominant source of VOCs.
Hongmei Xu, Jean-François Léon, Cathy Liousse, Benjamin Guinot, Véronique Yoboué, Aristide Barthélémy Akpo, Jacques Adon, Kin Fai Ho, Steven Sai Hang Ho, Lijuan Li, Eric Gardrat, Zhenxing Shen, and Junji Cao
Atmos. Chem. Phys., 19, 6637–6657, https://doi.org/10.5194/acp-19-6637-2019, https://doi.org/10.5194/acp-19-6637-2019, 2019
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This paper discusses the personal exposure characteristics and health implication of PM2.5 and bounded chemical species based on three anthropogenic sources and related populations (domestic fires for women, waste burning for students and motorcycle traffic for drivers) in Abidjan and Cotonou in dry and wet seasons of 2016. This work can be regarded as the first attempt at measuring personal exposure to PM2.5 and its related health risks in underdeveloped countries of Africa.
Vincent Huijnen, Andrea Pozzer, Joaquim Arteta, Guy Brasseur, Idir Bouarar, Simon Chabrillat, Yves Christophe, Thierno Doumbia, Johannes Flemming, Jonathan Guth, Béatrice Josse, Vlassis A. Karydis, Virginie Marécal, and Sophie Pelletier
Geosci. Model Dev., 12, 1725–1752, https://doi.org/10.5194/gmd-12-1725-2019, https://doi.org/10.5194/gmd-12-1725-2019, 2019
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We report on an evaluation of tropospheric ozone and its precursor gases in three atmospheric chemistry versions as implemented in ECMWF’s Integrated Forecasting System (IFS), referred to as IFS(CB05BASCOE), IFS(MOZART) and IFS(MOCAGE). This configuration of having various chemistry versions within IFS provides a quantification of uncertainties in CAMS trace gas products that are induced by chemistry modelling.
Jonathan E. Hickman, Enrico Dammers, Corinne Galy-Lacaux, and Guido R. van der Werf
Atmos. Chem. Phys., 18, 16713–16727, https://doi.org/10.5194/acp-18-16713-2018, https://doi.org/10.5194/acp-18-16713-2018, 2018
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Ammonia gas, which contributes to air pollution, is emitted from soils and combustion. In regions with distinct dry and rainy seasons, the first rainfall events each year trigger biogeochemical activity in soils. We used satellite observations of the atmosphere over the African Sahel savanna ecosystem to show that increases in soil moisture at the onset of the rainy season are responsible for large pulsed emissions of ammonia equal to roughly a fifth of annual ammonia emissions from the region
Sekou Keita, Cathy Liousse, Véronique Yoboué, Pamela Dominutti, Benjamin Guinot, Eric-Michel Assamoi, Agnès Borbon, Sophie L. Haslett, Laetitia Bouvier, Aurélie Colomb, Hugh Coe, Aristide Akpo, Jacques Adon, Julien Bahino, Madina Doumbia, Julien Djossou, Corinne Galy-Lacaux, Eric Gardrat, Sylvain Gnamien, Jean F. Léon, Money Ossohou, E. Touré N'Datchoh, and Laurent Roblou
Atmos. Chem. Phys., 18, 7691–7708, https://doi.org/10.5194/acp-18-7691-2018, https://doi.org/10.5194/acp-18-7691-2018, 2018
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This study provides emission factor (EF) data for elemental and organic carbon, total particulate matter and 58 volatile organic compound species for combustion sources specific to Africa to establish emission inventories with less uncertainty. EFs obtained in this study are generally higher than those in the literature whose values are used in emissions inventories for Africa. This shows that particles and VOC emissions were sometimes underestimated and underlines this study's importance.
Julien Djossou, Jean-François Léon, Aristide Barthélemy Akpo, Cathy Liousse, Véronique Yoboué, Mouhamadou Bedou, Marleine Bodjrenou, Christelle Chiron, Corinne Galy-Lacaux, Eric Gardrat, Marcellin Abbey, Sékou Keita, Julien Bahino, Evelyne Touré N'Datchoh, Money Ossohou, and Cossi Norbert Awanou
Atmos. Chem. Phys., 18, 6275–6291, https://doi.org/10.5194/acp-18-6275-2018, https://doi.org/10.5194/acp-18-6275-2018, 2018
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Atmospheric aerosols were collected in Cotonou/traffic (CT), Benin, and, Abidjan/traffic (AT), Abidjan/landfill (AL) and Abidjan/domestic fires (ADF), Côte d'Ivoire, from February 2015 to March 2017. We report the weekly PM2.5, elemental (EC) and organic (OC) carbon, and aerosol optical depth (AOD) in both cities. PM2.5 was 32 ± 32, 32 ± 24, 28 ± 19 and 145 ± 69 µg m−3 at CT, AT, AL and ADF. OC / EC is 3.5 at CT, 2.0 at AT, 2.2 at AL and 5.2 at ADF. AOD is 0.58 at Cotonou and 0.68 at Abidjan.
Julien Bahino, Véronique Yoboué, Corinne Galy-Lacaux, Marcellin Adon, Aristide Akpo, Sékou Keita, Cathy Liousse, Eric Gardrat, Christelle Chiron, Money Ossohou, Sylvain Gnamien, and Julien Djossou
Atmos. Chem. Phys., 18, 5173–5198, https://doi.org/10.5194/acp-18-5173-2018, https://doi.org/10.5194/acp-18-5173-2018, 2018
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This work, part of DACCIWA WP2
Air Pollution and Health, aims to characterize urban air pollution levels through the measurement of NO2, SO2, NH3, HNO3 and O3 at 21 measurements sites in the district of Abidjan, an important metropolis in western Africa. Results show a high spatial variability of gaseous pollutants at the scale of the district of Abidjan and the predominance of the concentration of two pollutants (NH3 and NO2) related to domestic fires and road traffic, respectively.
Sophie L. Haslett, J. Chris Thomas, William T. Morgan, Rory Hadden, Dantong Liu, James D. Allan, Paul I. Williams, Sekou Keita, Cathy Liousse, and Hugh Coe
Atmos. Chem. Phys., 18, 385–403, https://doi.org/10.5194/acp-18-385-2018, https://doi.org/10.5194/acp-18-385-2018, 2018
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Wood burning is chaotic, so the particles emitted can be difficult to study in a repeatable way. Here, we addressed this problem by carefully controlling small wood fires in the lab. We saw three burning phases, which could be told apart chemically; we also saw evidence of these in measurements of wood burning in London in 2012. Controlled experiments like this help us to understand why emissions are so variable and to recognise burning conditions just from the particles seen in the atmosphere.
Augustin Colette, Camilla Andersson, Astrid Manders, Kathleen Mar, Mihaela Mircea, Maria-Teresa Pay, Valentin Raffort, Svetlana Tsyro, Cornelius Cuvelier, Mario Adani, Bertrand Bessagnet, Robert Bergström, Gino Briganti, Tim Butler, Andrea Cappelletti, Florian Couvidat, Massimo D'Isidoro, Thierno Doumbia, Hilde Fagerli, Claire Granier, Chris Heyes, Zig Klimont, Narendra Ojha, Noelia Otero, Martijn Schaap, Katarina Sindelarova, Annemiek I. Stegehuis, Yelva Roustan, Robert Vautard, Erik van Meijgaard, Marta Garcia Vivanco, and Peter Wind
Geosci. Model Dev., 10, 3255–3276, https://doi.org/10.5194/gmd-10-3255-2017, https://doi.org/10.5194/gmd-10-3255-2017, 2017
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The EURODELTA-Trends numerical experiment has been designed to assess the capability of chemistry-transport models to capture the evolution of surface air quality over the 1990–2010 period in Europe. It also includes sensitivity experiments in order to analyse the relative contribution of (i) emission changes, (ii) meteorological variability, and (iii) boundary conditions to air quality trends. The article is a detailed presentation of the experiment design and participating models.
Qiang Huang, Jiubin Chen, Weilin Huang, Pingqing Fu, Benjamin Guinot, Xinbin Feng, Lihai Shang, Zhuhong Wang, Zhongwei Wang, Shengliu Yuan, Hongming Cai, Lianfang Wei, and Ben Yu
Atmos. Chem. Phys., 16, 11773–11786, https://doi.org/10.5194/acp-16-11773-2016, https://doi.org/10.5194/acp-16-11773-2016, 2016
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Atmospheric airborne mercury is of particular concern because, once inhaled, both Hg and its vectors might have adverse effects on human beings. In this study, we attempted to identify the sources of PM2.5-Hg in Beijing, China, using Hg isotopic composition. Large range and seasonal variations in both mass-dependent and mass-independent fractionations of Hg isotopes in haze particles demonstrate the usefulness of Hg isotopes for directly tracing the sources and its vectors in the atmosphere.
M. Mallet, F. Dulac, P. Formenti, P. Nabat, J. Sciare, G. Roberts, J. Pelon, G. Ancellet, D. Tanré, F. Parol, C. Denjean, G. Brogniez, A. di Sarra, L. Alados-Arboledas, J. Arndt, F. Auriol, L. Blarel, T. Bourrianne, P. Chazette, S. Chevaillier, M. Claeys, B. D'Anna, Y. Derimian, K. Desboeufs, T. Di Iorio, J.-F. Doussin, P. Durand, A. Féron, E. Freney, C. Gaimoz, P. Goloub, J. L. Gómez-Amo, M. J. Granados-Muñoz, N. Grand, E. Hamonou, I. Jankowiak, M. Jeannot, J.-F. Léon, M. Maillé, S. Mailler, D. Meloni, L. Menut, G. Momboisse, J. Nicolas, T. Podvin, V. Pont, G. Rea, J.-B. Renard, L. Roblou, K. Schepanski, A. Schwarzenboeck, K. Sellegri, M. Sicard, F. Solmon, S. Somot, B Torres, J. Totems, S. Triquet, N. Verdier, C. Verwaerde, F. Waquet, J. Wenger, and P. Zapf
Atmos. Chem. Phys., 16, 455–504, https://doi.org/10.5194/acp-16-455-2016, https://doi.org/10.5194/acp-16-455-2016, 2016
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The aim of this article is to present an experimental campaign over the Mediterranean focused on aerosol-radiation measurements and modeling. Results indicate an important atmospheric loading associated with a moderate absorbing ability of mineral dust. Observations suggest a complex vertical structure and size distributions characterized by large aerosols within dust plumes. The radiative effect is highly variable, with negative forcing over the Mediterranean and positive over northern Africa.
J.-F. Léon, P. Augustin, M. Mallet, T. Bourrianne, V. Pont, F. Dulac, M. Fourmentin, D. Lambert, and B. Sauvage
Atmos. Chem. Phys. Discuss., https://doi.org/10.5194/acpd-15-9507-2015, https://doi.org/10.5194/acpd-15-9507-2015, 2015
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This paper presents the aerosol vertical distribution observed by lidar soundings in Corsica (western Mediterranean) between February 2012 and August 2013. A seasonal cycle is observed in the extinction coefficient profiles and aerosol optical thickness with minima in winter and maxima in spring-summer. Less than 10% of the daily observations show high AOD corresponding to the large-scale advection of desert dust from Northern Africa or pollution aerosols from Europe.
P. Nabat, S. Somot, M. Mallet, M. Michou, F. Sevault, F. Driouech, D. Meloni, A. di Sarra, C. Di Biagio, P. Formenti, M. Sicard, J.-F. Léon, and M.-N. Bouin
Atmos. Chem. Phys., 15, 3303–3326, https://doi.org/10.5194/acp-15-3303-2015, https://doi.org/10.5194/acp-15-3303-2015, 2015
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This paper uses an original approach based on a coupled regional aerosol--atmosphere--ocean model to study the dust radiative effects over the Mediterranean in summer 2012. After an evaluation of the prognostic aerosol scheme, the dust aerosol daily variability is shown to improve the simulated surface radiation and temperature at the daily scale. It has also a significant impact on the summer average, thus highlighting the importance of a relevant representation of aerosols in climate models.
Y. Wang, K. N. Sartelet, M. Bocquet, P. Chazette, M. Sicard, G. D'Amico, J. F. Léon, L. Alados-Arboledas, A. Amodeo, P. Augustin, J. Bach, L. Belegante, I. Binietoglou, X. Bush, A. Comerón, H. Delbarre, D. García-Vízcaino, J. L. Guerrero-Rascado, M. Hervo, M. Iarlori, P. Kokkalis, D. Lange, F. Molero, N. Montoux, A. Muñoz, C. Muñoz, D. Nicolae, A. Papayannis, G. Pappalardo, J. Preissler, V. Rizi, F. Rocadenbosch, K. Sellegri, F. Wagner, and F. Dulac
Atmos. Chem. Phys., 14, 12031–12053, https://doi.org/10.5194/acp-14-12031-2014, https://doi.org/10.5194/acp-14-12031-2014, 2014
Related subject area
Subject: Aerosols | Research Activity: Field Measurements | Altitude Range: Troposphere | Science Focus: Chemistry (chemical composition and reactions)
In situ measurement of organic aerosol molecular markers in urban Hong Kong during a summer period: temporal variations and source apportionment
Technical note: Determining chemical composition of atmospheric single particles by a standard-free mass calibration algorithm
Different formation pathways of nitrogen-containing organic compounds in aerosols and fog water in northern China
Impact of weather patterns and meteorological factors on PM2.5 and O3 responses to the COVID-19 lockdown in China
Daytime and nighttime aerosol soluble iron formation in clean and slightly polluted moist air in a coastal city in eastern China
Non-negligible secondary contribution to brown carbon in autumn and winter: inspiration from particulate nitrated and oxygenated aromatic compounds in urban Beijing
Simultaneous organic aerosol source apportionment at two Antarctic sites reveals large-scale and ecoregion-specific components
Measurement report: Optical characterization, seasonality, and sources of brown carbon in fine aerosols from Tianjin, North China: year-round observations
Bayesian inference-based estimation of hourly primary and secondary organic carbon in suburban Hong Kong: multi-temporal-scale variations and evolution characteristics during PM2.5 episodes
Measurement report: Characteristics of nitrogen-containing organics in PM2.5 in Ürümqi, northwestern China – differential impacts of combustion of fresh and aged biomass materials
Measurement report: Bio-physicochemistry of tropical clouds at Maïdo (Réunion, Indian Ocean): overview of results from the BIO-MAÏDO campaign
Chemical properties and single-particle mixing state of soot aerosol in Houston during the TRACER campaign
Characterizing water solubility of fresh and aged secondary organic aerosol in PM2.5 with the stable carbon isotope technique
Measurement report: Evaluation of the TOF-ACSM-CV for PM1.0 and PM2.5 measurements during the RITA-2021 field campaign
Sea salt reactivity over the northwest Atlantic: an in-depth look using the airborne ACTIVATE dataset
Measurement report: Atmospheric ice nuclei in the Changbai Mountains (2623 m a.s.l.) in northeastern Asia
Morphological and optical properties of carbonaceous aerosol particles from ship emissions and biomass burning during a summer cruise measurement in the South China Sea
Critical contribution of chemically diverse carbonyl molecules to the oxidative potential of atmospheric aerosols
Tropical tropospheric aerosol sources and chemical composition observed at high altitude in the Bolivian Andes
Chemical composition, sources and formation mechanism of urban PM2.5 in Southwest China: a case study at the beginning of 2023
Chemical characterization of atmospheric aerosols at a high-altitude mountain site: a study of source apportionment
Composition and sources of carbonaceous aerosol in the European Arctic at Zeppelin Observatory, Svalbard (2017 to 2020)
Measurement Report: Size-resolved secondary organic aerosol formation modulated by aerosol water uptake in wintertime haze
Variation in chemical composition and volatility of oxygenated organic aerosol in different rural, urban, and mountain environments
Elucidating the mechanisms of atmospheric new particle formation in the highly polluted Po Valley, Italy
Water-insoluble organic carbon in PM2.5 over China: light-absorbing properties, potential sources, radiative forcing effects and possible light-absorbing continuum
Diverging trends in aerosol sulfate and nitrate measured in the remote North Atlantic on Barbados are attributed to clean air policies, African smoke, and anthropogenic emissions
Local ship speed reduction effect on black carbon emissions measured at remote marine station
Roles of marine biota in the formation of atmospheric bioaerosols, cloud condensation nuclei, and ice-nucleating particles over the North Pacific Ocean, Bering Sea, and Arctic Ocean
Evolution of nucleophilic high molecular-weight organic compounds in ambient aerosols: a case study
Fractional solubility of iron in mineral dust aerosols over coastal Namibia: a link to marine biogenic emissions?
Real-world observations of reduced nitrogen and ultrafine particles in commercial cooking organic aerosol emissions
Source apportionment of PM2.5 in Montréal, Canada, and health risk assessment for potentially toxic elements
Physicochemical and temporal characteristics of individual atmospheric aerosol particles in urban Seoul during KORUS-AQ campaign: insights from single-particle analysis
Mass spectrometric analysis of unprecedented high levels of carbonaceous aerosol particles long-range transported from wildfires in the Siberian Arctic
Short-term source apportionment of fine particulate matter with time-dependent profiles using SoFi Pro: exploring the reliability of rolling positive matrix factorization (PMF) applied to bihourly molecular and elemental tracer data
Particulate-bound alkyl nitrate pollution and formation mechanisms in Beijing, China
Measurement report: Impact of emission control measures on environmental persistent free radicals and reactive oxygen species – A short-term case study in Beijing
Characterization of water-soluble brown carbon chromophores from wildfire plumes in the western USA using size-exclusion chromatography
Marine carbohydrates in Arctic aerosol particles and fog – diversity of oceanic sources and atmospheric transformations
Investigating the contribution of grown new particles to cloud condensation nuclei with largely varying preexisting particles – Part 1: Observational data analysis
Measurement report: Brown carbon aerosol in polluted urban air of the North China Plain – day–night differences in the chromophores and optical properties
Measurement report: Secondary organic aerosols at a forested mountain site in southeastern China
Source apportionment of soot particles and aqueous-phase processing of black carbon coatings in an urban environment
Seasonal variations in composition and sources of atmospheric ultrafine particles in urban Beijing based on near-continuous measurements
Summertime response of ozone and fine particulate matter to mixing layer meteorology over the North China Plain
Trace elements in PM2.5 aerosols in East Asian outflow in the spring of 2018: emission, transport, and source apportionment
Measurement Report: Investigation on the sources and formation processes of dicarboxylic acids and related species in urban aerosols before and during the COVID-19 lockdown in Jinan, East China
pH dependence of brown-carbon optical properties in cloud water
Oxidative potential in rural, suburban and city centre atmospheric environments in central Europe
Hongyong Li, Xiaopu Lyu, Likun Xue, Yunxi Huo, Dawen Yao, Haoxian Lu, and Hai Guo
Atmos. Chem. Phys., 24, 7085–7100, https://doi.org/10.5194/acp-24-7085-2024, https://doi.org/10.5194/acp-24-7085-2024, 2024
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Organic aerosol is ubiquitous in the atmosphere and largely explains the gap between current levels of fine particulate matter in many cities and the World Health Organization guideline values. This study highlights the dominant contributions of cooking emissions to organic aerosol when marine air prevailed in Hong Kong, which were occasionally overwhelmed by aromatics-derived secondary organic aerosol in continental ouflows.
Shao Shi, Jinghao Zhai, Xin Yang, Yechun Ruan, Yuanlong Huang, Xujian Chen, Antai Zhang, Jianhuai Ye, Guomao Zheng, Baohua Cai, Yaling Zeng, Yixiang Wang, Chunbo Xing, Yujie Zhang, Tzung-May Fu, Lei Zhu, Huizhong Shen, and Chen Wang
Atmos. Chem. Phys., 24, 7001–7012, https://doi.org/10.5194/acp-24-7001-2024, https://doi.org/10.5194/acp-24-7001-2024, 2024
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The determination of ions in the mass spectra of individual particles remains uncertain. We have developed a standard-free mass calibration algorithm applicable to more than 98 % of ambient particles. With our algorithm, ions with ~ 0.05 Th mass difference could be determined. Therefore, many more atmospheric species could be determined and involved in the source apportionment of aerosols, the study of chemical reaction mechanisms, and the analysis of single-particle mixing states.
Wei Sun, Xiaodong Hu, Yuzhen Fu, Guohua Zhang, Yujiao Zhu, Xinfeng Wang, Caiqing Yan, Likun Xue, He Meng, Bin Jiang, Yuhong Liao, Xinming Wang, Ping'an Peng, and Xinhui Bi
Atmos. Chem. Phys., 24, 6987–6999, https://doi.org/10.5194/acp-24-6987-2024, https://doi.org/10.5194/acp-24-6987-2024, 2024
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The formation pathways of nitrogen-containing compounds (NOCs) in the atmosphere remain unclear. We investigated the composition of aerosols and fog water by state-of-the-art mass spectrometry and compared the formation pathways of NOCs. We found that NOCs in aerosols were mainly formed through nitration reaction, while ammonia addition played a more important role in fog water. The results deepen our understanding of the processes of organic particulate pollution.
Fuzhen Shen, Michaela I. Hegglin, and Yue Yuan
Atmos. Chem. Phys., 24, 6539–6553, https://doi.org/10.5194/acp-24-6539-2024, https://doi.org/10.5194/acp-24-6539-2024, 2024
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We attempt to use a novel structural self-organising map and machine learning models to identify a weather system and quantify the importance of each meteorological factor in driving the unexpected PM2.5 and O3 changes under the specific weather system during the COVID-19 lockdown in China. The result highlights that temperature under the double-centre high-pressure system plays the most crucial role in abnormal events.
Wenshuai Li, Yuxuan Qi, Yingchen Liu, Guanru Wu, Yanjing Zhang, Jinhui Shi, Wenjun Qu, Lifang Sheng, Wencai Wang, Daizhou Zhang, and Yang Zhou
Atmos. Chem. Phys., 24, 6495–6508, https://doi.org/10.5194/acp-24-6495-2024, https://doi.org/10.5194/acp-24-6495-2024, 2024
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Aerosol particles from mainland can transport to oceans and deposit, providing soluble Fe and affecting phytoplankton growth. Thus, we studied the dissolution process of aerosol Fe and found that photochemistry played a key role in promoting Fe dissolution in clean conditions. RH-dependent reactions were more influential in slightly polluted conditions. These results highlight the distinct roles of two weather-related parameters (radiation and RH) in influencing geochemical cycles related to Fe.
Yanqin Ren, Zhenhai Wu, Yuanyuan Ji, Fang Bi, Junling Li, Haijie Zhang, Hao Zhang, Hong Li, and Gehui Wang
Atmos. Chem. Phys., 24, 6525–6538, https://doi.org/10.5194/acp-24-6525-2024, https://doi.org/10.5194/acp-24-6525-2024, 2024
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Nitrated aromatic compounds (NACs) and oxygenated derivatives of polycyclic aromatic hydrocarbons (OPAHs) in PM2.5 were examined from an urban area in Beijing during the autumn and winter. The OPAH and NAC concentrations were much higher during heating than before heating. They majorly originated from the combustion of biomass and automobile emissions, and the secondary generation was the major contributor throughout the whole sampling period.
Marco Paglione, David C. S. Beddows, Anna Jones, Thomas Lachlan-Cope, Matteo Rinaldi, Stefano Decesari, Francesco Manarini, Mara Russo, Karam Mansour, Roy M. Harrison, Andrea Mazzanti, Emilio Tagliavini, and Manuel Dall'Osto
Atmos. Chem. Phys., 24, 6305–6322, https://doi.org/10.5194/acp-24-6305-2024, https://doi.org/10.5194/acp-24-6305-2024, 2024
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Applying factor analysis techniques to H-NMR spectra, we present the organic aerosol (OA) source apportionment of PM1 samples collected in parallel at two Antarctic stations, namely Signy and Halley, allowing investigation of aerosol–climate interactions in an unperturbed atmosphere. Our results show remarkable differences between pelagic (open-ocean) and sympagic (sea-ice-influenced) air masses and indicate that various sources and processes are controlling Antarctic aerosols.
Zhichao Dong, Chandra Mouli Pavuluri, Peisen Li, Zhanjie Xu, Junjun Deng, Xueyan Zhao, Xiaomai Zhao, Pingqing Fu, and Cong-Qiang Liu
Atmos. Chem. Phys., 24, 5887–5905, https://doi.org/10.5194/acp-24-5887-2024, https://doi.org/10.5194/acp-24-5887-2024, 2024
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Comprehensive study of optical properties of brown carbon (BrC) in fine aerosols from Tianjin, China, implied that biological emissions are major sources of BrC in summer, whereas fossil fuel combustion and biomass burning emissions are in cold periods. The direct radiation absorption caused by BrC in short wavelengths contributed about 40 % to that caused by BrC in 300–700 nm. Water-insoluble but methanol-soluble BrC contains more protein-like chromophores (PLOM) than that of water-soluble BrC.
Shan Wang, Kezheng Liao, Zijing Zhang, Yuk Ying Cheng, Qiongqiong Wang, Hanzhe Chen, and Jian Zhen Yu
Atmos. Chem. Phys., 24, 5803–5821, https://doi.org/10.5194/acp-24-5803-2024, https://doi.org/10.5194/acp-24-5803-2024, 2024
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In this work, hourly primary and secondary organic carbon were estimated by a novel Bayesian inference approach in suburban Hong Kong. Their multi-temporal-scale variations and evolution characteristics during PM2.5 episodes were examined. The methodology could serve as a guide for other locations with similar monitoring capabilities. The observation-based results are helpful for understanding the evolving nature of secondary organic aerosols and refining the accuracy of model simulations.
Yi-Jia Ma, Yu Xu, Ting Yang, Hong-Wei Xiao, and Hua-Yun Xiao
Atmos. Chem. Phys., 24, 4331–4346, https://doi.org/10.5194/acp-24-4331-2024, https://doi.org/10.5194/acp-24-4331-2024, 2024
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This study provides field-based evidence about the differential impacts of combustion of fresh and aged biomass materials on aerosol nitrogen-containing organic compounds (NOCs) in different seasons in Ürümqi, bridging the linkages between the observations and previous laboratory studies showing the formation mechanisms of NOCs.
Maud Leriche, Pierre Tulet, Laurent Deguillaume, Frédéric Burnet, Aurélie Colomb, Agnès Borbon, Corinne Jambert, Valentin Duflot, Stéphan Houdier, Jean-Luc Jaffrezo, Mickaël Vaïtilingom, Pamela Dominutti, Manon Rocco, Camille Mouchel-Vallon, Samira El Gdachi, Maxence Brissy, Maroua Fathalli, Nicolas Maury, Bert Verreyken, Crist Amelynck, Niels Schoon, Valérie Gros, Jean-Marc Pichon, Mickael Ribeiro, Eric Pique, Emmanuel Leclerc, Thierry Bourrianne, Axel Roy, Eric Moulin, Joël Barrie, Jean-Marc Metzger, Guillaume Péris, Christian Guadagno, Chatrapatty Bhugwant, Jean-Mathieu Tibere, Arnaud Tournigand, Evelyn Freney, Karine Sellegri, Anne-Marie Delort, Pierre Amato, Muriel Joly, Jean-Luc Baray, Pascal Renard, Angelica Bianco, Anne Réchou, and Guillaume Payen
Atmos. Chem. Phys., 24, 4129–4155, https://doi.org/10.5194/acp-24-4129-2024, https://doi.org/10.5194/acp-24-4129-2024, 2024
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Aerosol particles in the atmosphere play a key role in climate change and air pollution. A large number of aerosol particles are formed from the oxidation of volatile organic compounds (VOCs and secondary organic aerosols – SOA). An important field campaign was organized on Réunion in March–April 2019 to understand the formation of SOA in a tropical atmosphere mostly influenced by VOCs emitted by forest and in the presence of clouds. This work synthesizes the results of this campaign.
Ryan N. Farley, James E. Lee, Laura-Hélèna Rivellini, Alex K. Y. Lee, Rachael Dal Porto, Christopher D. Cappa, Kyle Gorkowski, Abu Sayeed Md Shawon, Katherine B. Benedict, Allison C. Aiken, Manvendra K. Dubey, and Qi Zhang
Atmos. Chem. Phys., 24, 3953–3971, https://doi.org/10.5194/acp-24-3953-2024, https://doi.org/10.5194/acp-24-3953-2024, 2024
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The black carbon aerosol composition and mixing state were characterized using a soot particle aerosol mass spectrometer. Single-particle measurements revealed the major role of atmospheric processing in modulating the black carbon mixing state. A significant fraction of soot particles were internally mixed with oxidized organic aerosol and sulfate, with implications for activation as cloud nuclei.
Fenghua Wei, Xing Peng, Liming Cao, Mengxue Tang, Ning Feng, Xiaofeng Huang, and Lingyan He
EGUsphere, https://doi.org/10.5194/egusphere-2024-736, https://doi.org/10.5194/egusphere-2024-736, 2024
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The water solubility of secondary organic aerosols (SOA) is a crucial factor in determining their hygroscopicity and climatic impact. Stable carbon isotope and mass spectrometry techniques were combined to assess the water solubility of SOA with different aging degrees in a coastal megacity in China. This work revealed a much higher water-soluble fraction of aged SOA compared to fresh SOA, indicating that the aging degree of SOA has considerable impacts on its water solubility.
Xinya Liu, Bas Henzing, Arjan Hensen, Jan Mulder, Peng Yao, Danielle van Dinther, Jerry van Bronckhorst, Rujin Huang, and Ulrike Dusek
Atmos. Chem. Phys., 24, 3405–3420, https://doi.org/10.5194/acp-24-3405-2024, https://doi.org/10.5194/acp-24-3405-2024, 2024
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We evaluated the time-of-flight aerosol chemical speciation monitor (TOF-ACSM) following the implementation of the PM2.5 aerodynamic lens and a capture vaporizer (CV). The results showed that it significantly improved the accuracy and precision of ACSM in the field observations. The paper elucidates the measurement outcomes of various instruments and provides an analysis of their biases. This comprehensive evaluation is expected to benefit the ACSM community and other aerosol field measurements.
Eva-Lou Edwards, Yonghoon Choi, Ewan C. Crosbie, Joshua P. DiGangi, Glenn S. Diskin, Claire E. Robinson, Michael A. Shook, Edward L. Winstead, Luke D. Ziemba, and Armin Sorooshian
Atmos. Chem. Phys., 24, 3349–3378, https://doi.org/10.5194/acp-24-3349-2024, https://doi.org/10.5194/acp-24-3349-2024, 2024
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We investigate Cl− depletion in sea salt particles over the northwest Atlantic from December 2021 to June 2022 using an airborne dataset. Losses of Cl− are greatest in May and least in December–February and March. Inorganic acidic species can account for all depletion observed for December–February, March, and June near Bermuda but none in May. Quantifying Cl− depletion as a percentage captures seasonal trends in depletion but fails to convey the effects it may have on atmospheric oxidation.
Yue Sun, Yujiao Zhu, Yanbin Qi, Lanxiadi Chen, Jiangshan Mu, Ye Shan, Yu Yang, Yanqiu Nie, Ping Liu, Can Cui, Ji Zhang, Mingxuan Liu, Lingli Zhang, Yufei Wang, Xinfeng Wang, Mingjin Tang, Wenxing Wang, and Likun Xue
Atmos. Chem. Phys., 24, 3241–3256, https://doi.org/10.5194/acp-24-3241-2024, https://doi.org/10.5194/acp-24-3241-2024, 2024
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Field observations were conducted at the summit of Changbai Mountain in northeast Asia. The cumulative number concentration of ice-nucleating particles (INPs) varied from 1.6 × 10−3 to 78.3 L−1 over the temperature range of −5.5 to −29.0 ℃. Biological INPs (bio-INPs) accounted for the majority of INPs, and the proportion exceeded 90% above −13.0 ℃. Planetary boundary layer height, valley breezes, and long-distance transport of air mass influence the abundance of bio-INPs.
Cuizhi Sun, Yongyun Zhang, Baoling Liang, Min Gao, Xi Sun, Fei Li, Xue Ni, Qibin Sun, Hengjia Ou, Dexian Chen, Shengzhen Zhou, and Jun Zhao
Atmos. Chem. Phys., 24, 3043–3063, https://doi.org/10.5194/acp-24-3043-2024, https://doi.org/10.5194/acp-24-3043-2024, 2024
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In a May–June 2021 expedition in the South China Sea, we analyzed black and brown carbon in marine aerosols, key to light absorption and climate impact. Using advanced in situ and microscope techniques, we observed particle size, structure, and tar balls mixed with various elements. Results showed biomass burning and fossil fuels majorly influence light absorption, especially during significant burning events. This research aids the understanding of carbonaceous aerosols' role in marine climate.
Feifei Li, Shanshan Tang, Jitao Lv, Shiyang Yu, Xu Sun, Dong Cao, Yawei Wang, and Guibin Jiang
EGUsphere, https://doi.org/10.5194/egusphere-2024-37, https://doi.org/10.5194/egusphere-2024-37, 2024
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Targeted derivatization and non-targeted analysis with FT-ICR MS were used to reveal the molecular composition of carbonyl molecules in PM2.5, and the important role of carbonyls in increasing the oxidative potential of organic aerosol was found in the real samples.
C. Isabel Moreno, Radovan Krejci, Jean-Luc Jaffrezo, Gaëlle Uzu, Andrés Alastuey, Marcos F. Andrade, Valeria Mardóñez, Alkuin Maximilian Koenig, Diego Aliaga, Claudia Mohr, Laura Ticona, Fernando Velarde, Luis Blacutt, Ricardo Forno, David N. Whiteman, Alfred Wiedensohler, Patrick Ginot, and Paolo Laj
Atmos. Chem. Phys., 24, 2837–2860, https://doi.org/10.5194/acp-24-2837-2024, https://doi.org/10.5194/acp-24-2837-2024, 2024
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Aerosol chemical composition (ions, sugars, carbonaceous matter) from 2011 to 2020 was studied at Mt. Chacaltaya (5380 m a.s.l., Bolivian Andes). Minimum concentrations occur in the rainy season with maxima in the dry and transition seasons. The origins of the aerosol are located in a radius of hundreds of kilometers: nearby urban and rural areas, natural biogenic emissions, vegetation burning from Amazonia and Chaco, Pacific Ocean emissions, soil dust, and Peruvian volcanism.
Junke Zhang, Yunfei Su, Chunying Chen, Wenkai Guo, Qinwen Tan, Miao Feng, Danlin Song, Tao Jiang, Qiang Chen, Yuan Li, Wei Li, Yizhi Wang, Xiaojuan Huang, Lin Han, Wanqing Wu, and Gehui Wang
Atmos. Chem. Phys., 24, 2803–2820, https://doi.org/10.5194/acp-24-2803-2024, https://doi.org/10.5194/acp-24-2803-2024, 2024
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Typical haze events in Chengdu at the beginning of 2023 were investigated with bulk-chemical and single-particle analyses along with numerical model simulations. By integrating the obtained chemical composition, source, mixing state and numerical simulation results, we infer that Haze-1 was mainly caused by pollutants related to fossil fuel combustion, especially local mobile sources, while Haze-2 was triggered by the secondary pollutants, which mainly came from regional transmission.
Elena Barbaro, Matteo Feltracco, Fabrizio De Blasi, Clara Turetta, Marta Radaelli, Warren Cairns, Giulio Cozzi, Giovanna Mazzi, Marco Casula, Jacopo Gabrieli, Carlo Barbante, and Andrea Gambaro
Atmos. Chem. Phys., 24, 2821–2835, https://doi.org/10.5194/acp-24-2821-2024, https://doi.org/10.5194/acp-24-2821-2024, 2024
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The study analyzed a year of atmospheric aerosol composition at Col Margherita in the Italian Alps. Over 100 chemical markers were identified, including major ions, organic compounds, and trace elements. It revealed sources of aerosol, highlighted impacts of Saharan dust events, and showed anthropogenic pollution's influence despite the site's remoteness. Enrichment factors emphasized non-natural sources of trace elements. Source apportionment identified four key factors affecting the area.
Karl Espen Yttri, Are Bäcklund, Franz Conen, Sabine Eckhardt, Nikolaos Evangeliou, Markus Fiebig, Anne Kasper-Giebl, Avram Gold, Hans Gundersen, Cathrine Lund Myhre, Stephen Matthew Platt, David Simpson, Jason D. Surratt, Sönke Szidat, Martin Rauber, Kjetil Tørseth, Martin Album Ytre-Eide, Zhenfa Zhang, and Wenche Aas
Atmos. Chem. Phys., 24, 2731–2758, https://doi.org/10.5194/acp-24-2731-2024, https://doi.org/10.5194/acp-24-2731-2024, 2024
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We discuss carbonaceous aerosol (CA) observed at the high Arctic Zeppelin Observatory (2017 to 2020). We find that organic aerosol is a significant fraction of the Arctic aerosol, though less than sea salt aerosol and mineral dust, as well as non-sea-salt sulfate, originating mainly from anthropogenic sources in winter and from natural sources in summer, emphasizing the importance of wildfires for biogenic secondary organic aerosol and primary biological aerosol particles observed in the Arctic.
Jing Duan, Ru-Jin Huang, Ying Wang, Wei Xu, Haobin Zhong, Chunshui Lin, Wei Huang, Yifang Gu, Jurgita Ovadnevaite, Darius Ceburnis, and Colin O’Dowd
EGUsphere, https://doi.org/10.5194/egusphere-2024-573, https://doi.org/10.5194/egusphere-2024-573, 2024
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The chemical composition of atmospheric particles showed significant changes in recent years. We investigated the potential effects of inorganics changes on aerosol water uptake and thus secondary organic aerosol formation in wintertime haze, based on the size-resolved measurements of non-refractory fine particulate matter (NR-PM2.5) in Xi’an, Northwest China. This study highlights the key role of aerosol water as a medium to link inorganics and organics in their multiphase processes.
Wei Huang, Cheng Wu, Linyu Gao, Yvette Gramlich, Sophie L. Haslett, Joel Thornton, Felipe D. Lopez-Hilfiker, Ben H. Lee, Junwei Song, Harald Saathoff, Xiaoli Shen, Ramakrishna Ramisetty, Sachchida N. Tripathi, Dilip Ganguly, Feng Jiang, Magdalena Vallon, Siegfried Schobesberger, Taina Yli-Juuti, and Claudia Mohr
Atmos. Chem. Phys., 24, 2607–2624, https://doi.org/10.5194/acp-24-2607-2024, https://doi.org/10.5194/acp-24-2607-2024, 2024
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We present distinct molecular composition and volatility of oxygenated organic aerosol particles in different rural, urban, and mountain environments. We do a comprehensive investigation of the relationship between the chemical composition and volatility of oxygenated organic aerosol particles across different systems and environments. This study provides implications for volatility descriptions of oxygenated organic aerosol particles in different model frameworks.
Jing Cai, Juha Sulo, Yifang Gu, Sebastian Holm, Runlong Cai, Steven Thomas, Almuth Neuberger, Fredrik Mattsson, Marco Paglione, Stefano Decesari, Matteo Rinaldi, Rujing Yin, Diego Aliaga, Wei Huang, Yuanyuan Li, Yvette Gramlich, Giancarlo Ciarelli, Lauriane Quéléver, Nina Sarnela, Katrianne Lehtipalo, Nora Zannoni, Cheng Wu, Wei Nie, Juha Kangasluoma, Claudia Mohr, Markku Kulmala, Qiaozhi Zha, Dominik Stolzenburg, and Federico Bianchi
Atmos. Chem. Phys., 24, 2423–2441, https://doi.org/10.5194/acp-24-2423-2024, https://doi.org/10.5194/acp-24-2423-2024, 2024
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By combining field measurements, simulations and recent chamber experiments, we investigate new particle formation (NPF) and growth in the Po Valley, where both haze and frequent NPF occur. Our results show that sulfuric acid, ammonia and amines are the dominant NPF precursors there. A high NPF rate and a lower condensation sink lead to a greater survival probability for newly formed particles, highlighting the importance of gas-to-particle conversion for aerosol concentrations.
Yangzhi Mo, Jun Li, Guangcai Zhong, Sanyuan Zhu, Shizhen Zhao, Jiao Tang, Hongxing Jiang, Zhineng Cheng, Chongguo Tian, Yingjun Chen, and Gan Zhang
EGUsphere, https://doi.org/10.5194/egusphere-2024-130, https://doi.org/10.5194/egusphere-2024-130, 2024
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In this study, we found that biomass burning (31.0 %) and coal combustion (31.1 %), were the dominant sources of water-insoluble organic carbon in China, with coal combustion sources exhibited the strongest light-absorbing capacity. Additionally, we propose a light-absorbing carbonaceous continuum, revealing that components enriched with fossil sources tend to have stronger light-absorbing capacity, higher aromaticity, higher molecular weights, and greater recalcitrance in the atmosphere.
Cassandra J. Gaston, Joseph M. Prospero, Kristen Foley, Havala O. T. Pye, Lillian Custals, Edmund Blades, Peter Sealy, and James A. Christie
EGUsphere, https://doi.org/10.5194/egusphere-2024-11, https://doi.org/10.5194/egusphere-2024-11, 2024
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To understand how changing emissions have impacted aerosols in remote regions, we measured nitrate and sulfate at Barbados and compared to model predictions from EPA’s Air QUAlity TimE Series (EQUATES). Nitrate was stable except for spikes in 2008 and 2010 due to transported smoke. Sulfate decreased in the 1990s due to reductions of sulfur dioxide (SO2) in the U.S. and Europe, then increased in the 2000s due to anthropogenic emissions from Africa and more efficient oxidation of SO2.
Mikko Heikkilä, Krista Luoma, Timo Mäkelä, and Tiia Grönholm
EGUsphere, https://doi.org/10.5194/egusphere-2023-2823, https://doi.org/10.5194/egusphere-2023-2823, 2024
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Black carbon (BC) concentration was measured from 211 ship exhaust gas plumes at a remote marine station. Emission factors of BC were calculated in grams/kilograms fuel. Ships using exhaust gas cleaning systems (EGCS) were found to emit 80 % less BC than ships without EGCS. Emission factors were used to model BC emissions as a function of speed to define the effect of speed reduction. BC emissions increased with a decrease in speed from the ship’s service speed.
Kaori Kawana, Fumikazu Taketani, Kazuhiko Matsumoto, Yutaka Tobo, Yoko Iwamoto, Takuma Miyakawa, Akinori Ito, and Yugo Kanaya
Atmos. Chem. Phys., 24, 1777–1799, https://doi.org/10.5194/acp-24-1777-2024, https://doi.org/10.5194/acp-24-1777-2024, 2024
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Based on comprehensive shipborne observations, we found strong links between sea-surface biological materials and the formation of atmospheric fluorescent bioaerosols, cloud condensation nuclei, and ice-nucleating particles over the Arctic Ocean and Bering Sea during autumn 2019. Taking the wind-speed effect into account, we propose equations to approximate the links for this cruise, which can be used as a guide for modeling as well as for systematic comparisons with other observations.
Chen He, Hanxiong Che, Zier Bao, Yiliang Liu, Qing Li, Miao Hu, Jiawei Zhou, Shumin Zhang, Xiaojiang Yao, Quan Shi, Chunmao Chen, Yan Han, Lingshuo Meng, Xin Long, Fumo Yang, and Yang Chen
Atmos. Chem. Phys., 24, 1627–1639, https://doi.org/10.5194/acp-24-1627-2024, https://doi.org/10.5194/acp-24-1627-2024, 2024
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We examined the daily evolution of high molecular-weight organic compounds with a molecular weight of up to 1000 Da in order to comprehend their behaviors in the atmosphere under actual conditions. These compounds were proven to undergo multi-generation oxidation, carboxylation, and nitrification via both day- and nighttime chemistry.
Karine Desboeufs, Paola Formenti, Raquel Torres-Sánchez, Kerstin Schepanski, Jean-Pierre Chaboureau, Hendrik Andersen, Jan Cermak, Stefanie Feuerstein, Benoit Laurent, Danitza Klopper, Andreas Namwoonde, Mathieu Cazaunau, Servanne Chevaillier, Anaïs Feron, Cécile Mirande-Bret, Sylvain Triquet, and Stuart J. Piketh
Atmos. Chem. Phys., 24, 1525–1541, https://doi.org/10.5194/acp-24-1525-2024, https://doi.org/10.5194/acp-24-1525-2024, 2024
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This study investigates the fractional solubility of iron (Fe) in dust particles along the coast of Namibia, a critical region for the atmospheric Fe supply of the South Atlantic Ocean. Our results suggest a possible two-way interplay whereby marine biogenic emissions from the coastal marine ecosystems into the atmosphere would increase the solubility of Fe-bearing dust by photo-reduction processes. The subsequent deposition of soluble Fe could act to further enhance marine biogenic emissions.
Sunhye Kim, Jo Machesky, Drew R. Gentner, and Albert A. Presto
Atmos. Chem. Phys., 24, 1281–1298, https://doi.org/10.5194/acp-24-1281-2024, https://doi.org/10.5194/acp-24-1281-2024, 2024
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Cooking emissions are often an overlooked source of air pollution. We used a mobile lab to measure the characteristics of particles emitted from cooking sites in two cities. Our findings showed that cooking releases a substantial number of fine particles. While most emissions were similar, a bakery site showed distinctive chemical compositions with higher nitrogen compound levels. Thus, understanding the particle emissions from different cooking activities is crucial.
Nansi Fakhri, Robin Stevens, Arnold Downey, Konstantina Oikonomou, Jean Sciare, Charbel Afif, and Patrick L. Hayes
Atmos. Chem. Phys., 24, 1193–1212, https://doi.org/10.5194/acp-24-1193-2024, https://doi.org/10.5194/acp-24-1193-2024, 2024
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We investigated the chemical composition of atmospheric fine particles, their emission sources, and the potential human health risk associated with trace elements in particles for an urban site in Montréal over a 3-month period (August–November). This study represents the first time that such extensive composition measurements were included in an urban source apportionment study in Canada, and it provides greater resolution of fine-particle sources than has been previously achieved in Canada.
Hanjin Yoo, Li Wu, Hong Geng, and Chul-Un Ro
Atmos. Chem. Phys., 24, 853–867, https://doi.org/10.5194/acp-24-853-2024, https://doi.org/10.5194/acp-24-853-2024, 2024
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We conducted an investigation of atmospheric aerosols collected in Seoul, South Korea, during the KORUS-AQ campaign on a single-particle basis. We were able to identify their sources, the atmospheric fate, and the impacts of local emissions and long-range transport on aerosol composition. Additionally, we traced potential sources of non-exhaust heavy-metal particles. This comprehensive analysis provides valuable insights into the complex dynamics of urban aerosols.
Eric Schneider, Hendryk Czech, Olga Popovicheva, Marina Chichaeva, Vasily Kobelev, Nikolay Kasimov, Tatiana Minkina, Christopher Paul Rüger, and Ralf Zimmermann
Atmos. Chem. Phys., 24, 553–576, https://doi.org/10.5194/acp-24-553-2024, https://doi.org/10.5194/acp-24-553-2024, 2024
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This study provides insights into the complex chemical composition of long-range-transported wildfire plumes from Yakutia, which underwent different levels of atmospheric processing. With complementary mass spectrometric techniques, we improve our understanding of the chemical processes and atmospheric fate of wildfire plumes. Unprecedented high levels of carbonaceous aerosols crossed the polar circle with implications for the Arctic ecosystem and consequently climate.
Qiongqiong Wang, Shuhui Zhu, Shan Wang, Cheng Huang, Yusen Duan, and Jian Zhen Yu
Atmos. Chem. Phys., 24, 475–486, https://doi.org/10.5194/acp-24-475-2024, https://doi.org/10.5194/acp-24-475-2024, 2024
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We investigated short-term source apportionment of PM2.5 utilizing rolling positive matrix factorization (PMF) and online PM chemical speciation data, which included source-specific organic tracers collected over a period of 37 d during the winter of 2019–2020 in suburban Shanghai, China. The findings highlight that by imposing constraints on the primary source profiles, short-term PMF analysis successfully replicated both the individual primary sources and the total secondary sources.
Jiyuan Yang, Guoyang Lei, Jinfeng Zhu, Yutong Wu, Chang Liu, Kai Hu, Junsong Bao, Zitong Zhang, Weili Lin, and Jun Jin
Atmos. Chem. Phys., 24, 123–136, https://doi.org/10.5194/acp-24-123-2024, https://doi.org/10.5194/acp-24-123-2024, 2024
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The atmospheric pollution and formation mechanisms of particulate-bound alkyl nitrate in Beijing were studied. C9–C16 long-chain n-alkyl nitrates negatively correlated with O3 but positively correlated with PM2.5 and NO2, so they may not be produced during gas-phase homogeneous reactions in the photochemical process but form through reactions between alkanes and nitrates on PM surfaces. Particulate-bound n-alkyl nitrates strongly affect both haze pollution and atmospheric visibility.
Yuanyuan Qin, Xinghua Zhang, Wei Huang, Juanjuan Qin, Xiaoyu Hu, Yuxuan Cao, Tianyi Zhao, Yang Zhang, Jihua Tan, Ziyin Zhang, Xinming Wang, and Zhenzhen Wang
EGUsphere, https://doi.org/10.5194/egusphere-2023-2703, https://doi.org/10.5194/egusphere-2023-2703, 2024
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Environmental persistent free radicals (EPFRs) and reactive oxygen species (ROS) play an active role in the atmosphere. We quantified the impact of control measures on EPFRs and ROS and found that strict control measures have effectively reduced their emissions, largely linked to a significant decrease in secondary aerosols. Our findings have great implications for further understanding the formation and sources and for developing future air quality management policies targeting EPFRs and ROS.
Lisa Azzarello, Rebecca A. Washenfelder, Michael A. Robinson, Alessandro Franchin, Caroline C. Womack, Christopher D. Holmes, Steven S. Brown, Ann Middlebrook, Tim Newberger, Colm Sweeney, and Cora J. Young
Atmos. Chem. Phys., 23, 15643–15654, https://doi.org/10.5194/acp-23-15643-2023, https://doi.org/10.5194/acp-23-15643-2023, 2023
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We present a molecular size-resolved offline analysis of water-soluble brown carbon collected on an aircraft during FIREX-AQ. The smoke plumes were aged 0 to 5 h, where absorption was dominated by small molecular weight molecules, brown carbon absorption downwind did not consistently decrease, and the measurements differed from online absorption measurements of the same samples. We show how differences between online and offline absorption could be related to different measurement conditions.
Sebastian Zeppenfeld, Manuela van Pinxteren, Markus Hartmann, Moritz Zeising, Astrid Bracher, and Hartmut Herrmann
Atmos. Chem. Phys., 23, 15561–15587, https://doi.org/10.5194/acp-23-15561-2023, https://doi.org/10.5194/acp-23-15561-2023, 2023
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Marine carbohydrates are produced in the surface of the ocean, enter the atmophere as part of sea spray aerosol particles, and potentially contribute to the formation of fog and clouds. Here, we present the results of a sea–air transfer study of marine carbohydrates conducted in the high Arctic. Besides a chemo-selective transfer, we observed a quick atmospheric aging of carbohydrates, possibly as a result of both biotic and abiotic processes.
Xing Wei, Yanjie Shen, Xiao-Ying Yu, Yang Gao, Huiwang Gao, Ming Chu, Yujiao Zhu, and Xiaohong Yao
Atmos. Chem. Phys., 23, 15325–15350, https://doi.org/10.5194/acp-23-15325-2023, https://doi.org/10.5194/acp-23-15325-2023, 2023
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We investigate the contribution of grown new particles to Nccn at a rural mountain site in the North China Plain. The total particle number concentrations (Ncn) observed on 8 new particle formation (NPF) days were higher compared to non-NPF days. The Nccn at 0.2 % supersaturation (SS) and 0.4 % SS on the NPF days was significantly lower than on non-NPF days. Only one of eight NPF events had detectable net contributions to Nccn at 0.4 % SS and 1.0 % SS with increased κ values.
Yuquan Gong, Ru-Jin Huang, Lu Yang, Ting Wang, Wei Yuan, Wei Xu, Wenjuan Cao, Yang Wang, and Yongjie Li
Atmos. Chem. Phys., 23, 15197–15207, https://doi.org/10.5194/acp-23-15197-2023, https://doi.org/10.5194/acp-23-15197-2023, 2023
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This study reveals the large day–night differences in brown carbon (BrC) chromophore composition, which was not known previously. The results provide insights into the effects of atmospheric processes and emissions on BrC composition.
Zijun Zhang, Weiqi Xu, Yi Zhang, Wei Zhou, Xiangyu Xu, Aodong Du, Yinzhou Zhang, Hongqin Qiao, Ye Kuang, Xiaole Pan, Zifa Wang, Xueling Cheng, Lanzhong Liu, Qingyang Fu, Douglas R. Worsnop, Jie Li, and Yele Sun
EGUsphere, https://doi.org/10.5194/egusphere-2023-2684, https://doi.org/10.5194/egusphere-2023-2684, 2023
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We investigated aerosol composition, sources, and the interaction between secondary organic aerosol (SOA) and clouds at a regional mountain site in southeastern China. Clouds efficiently scavenge more-oxidized SOA; however, cloud evaporation leads to the production of less-oxidized SOA. The unexpectedly high presence of nitrate in aerosol particles indicates that nitrate formed in polluted areas has undergone interactions with clouds, significantly influencing the regional background site.
Ryan N. Farley, Sonya Collier, Christopher D. Cappa, Leah R. Williams, Timothy B. Onasch, Lynn M. Russell, Hwajin Kim, and Qi Zhang
Atmos. Chem. Phys., 23, 15039–15056, https://doi.org/10.5194/acp-23-15039-2023, https://doi.org/10.5194/acp-23-15039-2023, 2023
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Soot particles, also known as black carbon (BC), have important implications for global climate and regional air quality. After the particles are emitted, BC can be coated with other material, impacting the aerosol properties. We selectively measured the composition of particles containing BC to explore their sources and chemical transformations in the atmosphere. We focus on a persistent, multiday fog event in order to study the effects of chemical reactions occurring within liquid droplets.
Xiaoxiao Li, Yijing Chen, Yuyang Li, Runlong Cai, Yiran Li, Chenjuan Deng, Jin Wu, Chao Yan, Hairong Cheng, Yongchun Liu, Markku Kulmala, Jiming Hao, James N. Smith, and Jingkun Jiang
Atmos. Chem. Phys., 23, 14801–14812, https://doi.org/10.5194/acp-23-14801-2023, https://doi.org/10.5194/acp-23-14801-2023, 2023
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Near-continuous measurements show the composition, sources, and seasonal variations of ultrafine particles (UFPs) in urban Beijing. Vehicle and cooking emissions and new particle formation are the main sources of UFPs, and aqueous/heterogeneous processes increase UFP mode diameters. UFPs are the highest in winter due to the highest primary particle emission rates and new particle formation rates, and CHO fractions are the highest in summer due to the strongest photooxidation.
Jiaqi Wang, Jian Gao, Fei Che, Xin Yang, Yuanqin Yang, Lei Liu, Yan Xiang, and Haisheng Li
Atmos. Chem. Phys., 23, 14715–14733, https://doi.org/10.5194/acp-23-14715-2023, https://doi.org/10.5194/acp-23-14715-2023, 2023
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Regional-scale observations of surface O3, PM2.5 and its major chemical species, mixing layer height (MLH), and other meteorological parameters were made in the North China Plain during summer. Unlike the cold season, synchronized increases in MDA8 O3 and PM2.5 under medium MLH conditions have been witnessed. The increasing trend of PM2.5 was associated with enhanced secondary chemical formation. The correlation between MLH and secondary air pollutants should be treated with care in hot seasons.
Takuma Miyakawa, Akinori Ito, Chunmao Zhu, Atsushi Shimizu, Erika Matsumoto, Yusuke Mizuno, and Yugo Kanaya
Atmos. Chem. Phys., 23, 14609–14626, https://doi.org/10.5194/acp-23-14609-2023, https://doi.org/10.5194/acp-23-14609-2023, 2023
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This study conducted semi-continuous measurements of PM2.5 aerosols and their elemental composition in western Japan, during spring 2018. It analyzed the emissions, transport, and wet removal of elements such as Pb, Cu, Fe, and Mn. It also assessed the accuracy of modeled concentrations and found overestimations of BC and underestimations of Cu and anthropogenic Fe in East Asia. Insights into emissions, removals, and source apportionment of trace metals in the East Asian outflow were provided.
Jingjing Meng, Yachen Wang, Yuanyuan Li, Tonglin Huang, Zhifei Wang, Yiqiu Wang, Min Chen, Zhanfang Hou, Houhua Zhou, Keding Lu, Kimitaka Kawamura, and Pingqing Fu
Atmos. Chem. Phys., 23, 14481–14503, https://doi.org/10.5194/acp-23-14481-2023, https://doi.org/10.5194/acp-23-14481-2023, 2023
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This study investigated the effect of COVID-19 lockdown (LCD) measures on the formation and evolutionary process of diacids and related compounds from field observations. Results demonstrate that more aged organic aerosols are observed during the LCD due to the enhanced photochemical oxidation. Our study also found that the reactivity of 13C was higher than that of 12C in the gaseous photochemical oxidation, leading to higher δ13C values of C2 during the LCD than before the LCD.
Christopher J. Hennigan, Michael McKee, Vikram Pratap, Bryanna Boegner, Jasper Reno, Lucia Garcia, Madison McLaren, and Sara M. Lance
Atmos. Chem. Phys., 23, 14437–14449, https://doi.org/10.5194/acp-23-14437-2023, https://doi.org/10.5194/acp-23-14437-2023, 2023
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This study characterized the optical properties of light-absorbing organic compounds, called brown carbon (BrC), in atmospheric cloud water samples. In all samples, light absorption by BrC increased linearly with increasing pH. There was variability in the sensitivity of the absorption–pH relationship, depending on the degree of influence from fire emissions. Overall, these results show that the climate forcing of BrC is quite strongly affected by its pH-dependent absorption.
Máté Vörösmarty, Gaëlle Uzu, Jean-Luc Jaffrezo, Pamela Dominutti, Zsófia Kertész, Enikő Papp, and Imre Salma
Atmos. Chem. Phys., 23, 14255–14269, https://doi.org/10.5194/acp-23-14255-2023, https://doi.org/10.5194/acp-23-14255-2023, 2023
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Poor air quality caused by high concentrations of particulate matter is one of the most severe public health concerns for humans worldwide. One of the most important biological mechanisms inducing adverse health effects is the oxidant–antioxidant imbalance. We showed that the oxidative stress changed substantially and in a complex manner with location and season. Biomass burning exhibited the dominant influence, while motor vehicles played an important role in the non-heating period.
Cited articles
Adon, M., Galy-Lacaux, C., Yoboué, V., Delon, C., Lacaux, J. P.,
Castera, P., Gardrat, E., Pienaar, J., Al Ourabi, H., Laouali, D., Diop, B.,
Sigha-Nkamdjou, L., Akpo, A., Tathy, J. P., Lavenu, F., and Mougin, E.: Long
term measurements of sulfur dioxide, nitrogen dioxide, ammonia, nitric acid
and ozone in Africa using passive samplers, Atmos. Chem. Phys., 10,
7467–7487, https://doi.org/10.5194/acp-10-7467-2010, 2010.
Alastuey, A., Querol, X., Castillo, S., Escudero, M., Avila, A., Cuevas, E.,
Torres, C., Romero, P., Exposito, F., and Garcia, O.: Characterisation of TSP
and PM2.5 at Izaña and Sta, Cruz de Tenerife (Canary Islands, Spain)
during a Saharan Dust Episode (July 2002), Atmos. Environ., 39,
4715–4728, https://doi.org/10.1016/j.atmosenv.2005.04.018, 2005.
Arditsoglou, A. and Samara, C.: Levels of total suspended particulate matter
and major trace elements in Kosovo: a source identification and
apportionment study, Chemosphere, 59, 669–678, https://doi.org/10.1016/j.chemosphere.2004.10.056, 2005.
Arndt, R. L., Carmichael, G. R., Streets, D. G., and Bhatti, N.: Sulfur
dioxide emissions and sectorial contributions to sulfur deposition in Asia,
Atmos. Environ., 31, 1553–1572, https://doi.org/10.1016/S1352-2310(96)00236-1, 1997.
Avogbe, P. H., Ayi-Fanou, L., Cachon, B., Chabi, N., Debende, A., Dewaele,
D., Aissi, F., Cazier, F., and Sanni, A.: Hematological changes among
Beninese motor-bike taxi drivers exposed to benzene by urban air pollution,
Afr. J. Environ. Sci. Technol., 5, 464–472,
2011.
Balarabe, M., Abdullah, K., and Nawawi, M.: Seasonal Variations of Aerosol
Optical Properties and Identification of Different Aerosol Types Based on
AERONET Data over Sub-Sahara West-Africa, Atmos. Clim. Sci., 6, 13–28,
https://doi.org/10.4236/acs.2016.61002, 2016.
Belis, C. A., Karagulian, F., Larsen, B. R., and Hopke, P. K.: Critical
review and meta-analysis of ambient particulate matter source apportionment
using receptor models in Europe, Atmos. Environ., 69, 94–108, https://doi.org/10.1016/j.atmosenv.2012.11.009, 2013.
Bisht, D. S., Dumka, U. C., Kaskaoutis, D. G., Pipal, A. S., Srivastava, A. K.,
Soni, V. K., Attri, S. D., Sateesh, M., and Tiwari, S.: Carbonaceous aerosols and
pollutants over Delhi urban environment: Temporal evolution, source
apportionment and radiative forcing, Sci. Total Environ.,
521/522, 431–445, 2015.
Boucher, O.: Aérosols atmosphériques Propriétés et impacts climatiques, Springer Paris, 2012.
Bouhila, Z., Mouzai, M., Azli, T., Nedjar, A., Mazouzi, C., Zergoug, Z.,
Boukhadra, D., Chegrouche, S., and Lounici, H.: Investigation of aerosol
trace element concentrations nearby Algiers for environmental monitoring
using instrumental neutron activation analysis, Atmos. Res., 166,
49–59, https://doi.org/10.1016/j.atmosres.2015.06.013, 2015.
Cachier, H., Brémond, M.-P., and Buat-Ménard, P.: Carbonaceous
aerosols from different tropical biomass burning sources, Nature, 340,
371–373, https://doi.org/10.1038/340371a0, 1989.
Cachon, B. F., Firmin, S., Verdin, A., Ayi-Fanou, L., Billet, S., Cazier,
F., Martin, P. J., Aissi, F., Courcot, D., Sanni, A., and Shirali, P.:
Proinflammatory effects and oxidative stress within human bronchial
epithelial cells exposed to atmospheric particulate matter (PM2.5 and
PM>2.5) collected from Cotonou, Benin, Environ. Pollut., 185,
340–351, https://doi.org/10.1016/j.envpol.2013.10.026, 2014.
Cao, J. J., Lee, S. C., Zhang, X. Y., Chow, J. C., An, Z. S., Ho, K. F., Watson,
J. G., Fung, K., Wang, Y. Q., and Shen, Z. X.: Characterization of airborne
carbonate over a site near Asian dust source regions during spring 2002 and
its climatic and environmental significance, J. Geophys. Res., 110,
D03203, https://doi.org/10.1029/2004JD005244, 2005.
Cassee, F. R., Héroux, M.-E., Gerlofs-Nijland, M. E., and Kelly, F. J.:
Particulate matter beyond mass: recent health evidence on the role of
fractions, chemical constituents and sources of emission, Inhal.
Toxicol., 25, 802–812, https://doi.org/10.3109/08958378.2013.850127, 2013.
Celo, V., Dabek-Zlotorzynska, E., Mathieu, D., and Okonskaia, I.: Validation of
simple microwave-assisted acid digestion method using microvessels for
analysis of trace elements in atmospheric PM2.5 in monitoring and
fingerprinting studies, Open Chem. Biomed. Method. J.,
3, 141–150, 2010.
Cesari, D., Donateo, A., Conte, M., Merico, E., Giangreco, A., Giangreco, F.,
and Contini, D.: An inter-comparison of PM2.5 at urban and urban
background sites: Chemical characterization and source apportionment,
Atmos. Res., 174/175, 106–119, https://doi.org/10.1016/j.atmosres.2016.02.004,
2016.
Cheng, Z., Jiang, J., Chen, C., Gao, J., Wang, S., Watson, J. G., Wang, H.,
Deng, J., Wang, B., Zhou, M., Chow, J. C., Pitchford, M. L., and Hao, J.:
Estimation of Aerosol Mass Scattering Efficiencies under High Mass Loading:
Case Study for the Megacity of Shanghai, China, Environ. Sci. Technol.,
49, 831–838, https://doi.org/10.1021/es504567q, 2015.
Chiapello, I., Bergametti, G., Chatenet, B., Bousquet, P., Dulac, F., and
Soares, E. S.: Origins of African dust transported over the northeastern
tropical Atlantic, J. Geophys. Res., 102, 13701–13709, https://doi.org/10.1029/97JD00259, 1997.
Chow, J. C., Watson, J. G., Lu, Z., Lowenthal, D. H., Frazier, C. A.,
Solomon, P. A., Thuillier, R. H., and Magliano, K.: Descriptive analysis of
PM2.5 and PM10 at regionally representative locations during
SJVAQS/AUSPEX, Atmos. Environ., 30, 2079–2112,
https://doi.org/10.1016/1352-2310(95)00402-5, 1996.
Colbeck, I., Nasir, Z. A., Ahmad, S., and Ali, Z.: Exposure to PM10, PM2.5,
PM1 and Carbon Monoxide on Roads in Lahore, Pakistan, Aerosol Air Qual.
Res., 11, 689–695, https://doi.org/10.4209/aaqr.2010.10.0087, 2011.
Colette, A., Menut, L., Haeffelin, M., and Morille, Y.: Impact of the
transport of aerosols from the free troposphere towards the boundary layer
on the air quality in the Paris area, Atmos. Environ., 42,
390–402, https://doi.org/10.1016/j.atmosenv.2007.09.044, 2007.
Dieme, D., Cabral-Ndior, M., Garçon, G., Verdin, A., Billet, S., Cazier,
F., Courcot, D., Diouf, A., and Shirali, P.: Relationship between
physicochemical characterization and toxicity of fine particulate matter
(PM2.5) collected in Dakar city (Senegal), Environ. Res., 113,
1–13, https://doi.org/10.1016/j.envres.2011.11.009, 2012.
Ding, A., Huang, X., and Fu, C.: Air Pollution and Weather Interaction in
East Asia, Oxford Research Encyclopedias, Environ. Sci., 1, 1–26, https://doi.org/10.1093/acrefore/9780199389414.013.536, 2017.
Djossou, J., Léon, J.-F., Akpo, A. B., Liousse, C., Yoboué, V.,
Bedou, M., Bodjrenou, M., Chiron, C., Galy-Lacaux, C., Gardrat, E., Abbey,
M., Keita, S., Bahino, J., Touré N'Datchoh, E., Ossohou, M., and Awanou,
C. N.: Mass concentration, optical depth and carbon composition of
particulate matter in the major southern West African cities of Cotonou
(Benin) and Abidjan (Côte d'Ivoire), Atmos. Chem. Phys., 18,
6275–6291, https://doi.org/10.5194/acp-18-6275-2018, 2018.
Doumbia, E. H. T., Liousse, C., Galy-Lacaux, C., Ndiaye, S. A., Diop, B.,
Ouafo, M., Assamoi,
E.M., Gardrat, E., Castera, P., Rosset, R., Akpo, A., and Sigha, L.: Real time black carbon measurements in West and Central
Africa urban sites, Atmos. Environ., 54, 529–537, 2012..
Draxler, R. R. and Rolph, G. D.: Evaluation of the Transfer Coefficient
Matrix (TCM) approach to model the atmospheric radionuclide air
concentrations from Fukushima, J. Geophys. Res., 117, D05107,
https://doi.org/10.1029/2011JD017205, 2012.
Du, Z., He, K., Cheng, Y., Duan, F., Ma, Y., Liu, J., Zhang, X., Zheng, M.,
and Weber, R.: A yearlong study of water-soluble organic carbon in Beijing
I: Sources and its primary vs. secondary nature, Atmos. Environ.,
92, 514–521, https://doi.org/10.1016/j.atmosenv.2014.04.060, 2014.
Favez, O.: Caractérisation physico-chimique de la pollution particulaire
dans des mégapoles contrastées, Thèse de l'Université
PARIS.DIDEROT (Paris 7), France, 2008.
Favez, O., Sciare, J., Cachier, H., Alfaro, S. C., and Abdelwahab, M. M.:
Significant formation of water-insoluble secondary organic aerosols in
semi-arid urban environment, Geophys. Res. Lett., 35, L15801,
https://doi.org/10.1029/2008GL034446, 2008.
Feng, J., Guo, Z., Chan, C. K., and Fang, M.: Properties of organic matter in
PM2.5 at Changdao Island, China – A rural site in the transport path
of the Asian continental outflow, Atmos. Environ., 41, 1924–1935,
https://doi.org/10.1016/j.atmosenv.2006.10.064, 2007.
Feng, J., Hu, M., Chan, C. K., Lau, P. S., Fang, M., He, L., and Tang, X.: A
comparative study of the organic matter in PM2.5 from three Chinese
megacities in three different climatic zones, Atmos. Environ.,
40, 3983–3994, https://doi.org/10.1016/j.atmosenv.2006.02.017, 2006.
Freitas, M. C., Pacheco, A. M. G., Baptista, M. S., Dionísio, I.,
Vasconcelos, M. T. S. D., and Cabral, J. P.: Response of exposed detached lichens
to atmospheric elemental deposition, Proc. ECOpole., 1, 15–21, 2007.
Gaga, E. O., Arı, A., Akyol, N., Üzmez, Ö. Ö., Kara, M., Chow,
J. C., Watson, J. G., Özel, E., Döğeroğlu, T., and Odabasi,
M.: Determination of real-world emission factors of trace metals, EC, OC,
BTEX, and semivolatile organic compounds (PAHs, PCBs and PCNs) in a rural
tunnel in Bilecik, Turkey, Sci. Total Environ., 643, 1285–1296,
https://doi.org/10.1016/j.scitotenv.2018.06.227, 2018.
Gao, Y., Nelson, E. D., Field, M. P., Ding, Q., Li, H., Sherrell, R. M.,
Gigliotti, C. L., Van Ry, D. A., Glenn, T. R., and Eisenreich, S. J.:
Characterization of atmospheric trace elements on PM2.5 particulate
matter over the New York–New Jersey harbor estuary, Atmos.
Environ., 36, 1077–1086, https://doi.org/10.1016/S1352-2310(01)00381-8, 2002.
Genga, A., Ielpo, P., Siciliano, T., and Siciliano, M.: Carbonaceous
particles and aerosol mass closure in PM2.5 collected in a port city,
Atmos. Res., 183, 245–254, https://doi.org/10.1016/j.atmosres.2016.08.022,
2017.
Goldberg, E. D.: Composition of sea Water, edited by: Hill, H. M., Comparative Oceanography, Vol. 2, SeaWiley, New York, 1963.
Gounougbe, F.: Pollution atmosphérique par les gaz d'échappement et
état de santé des conducteurs de taxi-moto (Zemidjan) de Cotonou
(Bénin), Thèse de doctorat en Médecine (832), 1999.
Guinot, B., Cachier, H., and Oikonomou, K.: Geochemical perspectives from a
new aerosol chemical mass closure, Atmos. Chem. Phys., 7, 1657–1670, https://doi.org/10.5194/acp-7-1657-2007, 2007.
Guttikunda, S. K. and Calori, G.: A GIS based emissions inventory at 1 km × 1 km spatial resolution for air pollution analysis in Delhi,
India, Atmos. Environ., 67, 101–111,
https://doi.org/10.1016/j.atmosenv.2012.10.040, 2013.
Hara, K., Osada, K., Kido, M., Hayashi, M., Matsunaga, K., Iwasaka, Y.,
Yamanouchi, T., Hashida, G., and Fukatsu, T.: Chemistry of sea-salt particles
and inorganic halogen species in Antarctic regions: Compositional
differences between coastal and inland stations, J. Geophys. Res., 109,
D20208, https://doi.org/10.1029/2004JD004713, 2004.
He, K., Yang, F., Ma, Y., Zhang, Q., Yao, X., Chan, C. K., Cadle, S., Chan,
T., and Mulawa, P.: The characteristics of PM2.5 in Beijing, China,
Atmos. Environ., 35, 4959–4970, https://doi.org/10.1016/S1352-2310(01)00301-6, 2001.
Hildemann, L. M., Markowski, G. R., and Cass, G. R.: Chemical composition of
emissions from urban sources of fine organic aerosol, Environ. Sci.
Technol., 25, 744–759, https://doi.org/10.1021/es00016a021, 1991.
Huang, H., Ho, K. F., Lee, S. C., Tsang, P. K., Ho, S. S. H., Zou, C. W.,
Zou, S. C., Cao, J. J., and Xu, H. M.: Characteristics of carbonaceous
aerosol in PM2.5: Pearl Delta River Region, China, Atmos. Res.,
104/105, 227–236, https://doi.org/10.1016/j.atmosres.2011.10.016, 2012.
Jaffrezo, J.-L., Aymoz, G., Delaval, C., and Cozic, J.: Seasonal variations of the water soluble organic carbon mass fraction of aerosol in two valleys of the French Alps, Atmos. Chem. Phys., 5, 2809–2821, https://doi.org/10.5194/acp-5-2809-2005, 2005.
Keita, S., Liousse, C., Yoboué, V., Dominutti, P., Guinot, B., Assamoi,
E.-M., Borbon, A., Haslett, S. L., Bouvier, L., Colomb, A., Coe, H., Akpo,
A., Adon, J., Bahino, J., Doumbia, M., Djossou, J., Galy-Lacaux, C.,
Gardrat, E., Gnamien, S., Léon, J. F., Ossohou, M.,
N'Datchoh, E. T., and Roblou, L.: Particle and VOC emission
factor measurements for anthropogenic sources in West Africa, Atmos. Chem.
Phys., 18, 7691–7708, https://doi.org/10.5194/acp-18-7691-2018, 2018.
Khan, Md. F., Shirasuna, Y., Hirano, K., and Masunaga, S.: Characterization
of PM2.5, PM2.5−10 and PM>10 in ambient air,
Yokohama, Japan, Atmos. Res., 96, 159–172,
https://doi.org/10.1016/j.atmosres.2009.12.009, 2010.
Kim, H., Liu, X., Kobayashi, T., Kohyama, T., Wen, F.-Q., Romberger, D. J.,
Conner, H., Gilmour, P. S., Donaldson, K., MacNee, W., and Rennard, S. I.:
Ultrafine Carbon Black Particles Inhibit Human Lung Fibroblast-Mediated
Collagen Gel Contraction, Am. J. Respir. Cell. Mol. Biol., 28, 111–121,
https://doi.org/10.1165/rcmb.4796, 2003.
Knippertz, P., Tesche, M., Heinold, B., Kandler, K., Toledano, C., and
Esselborn, M.: Dust mobilization and aerosol transport from West Africa to
Cape Verde – a meteorological overview of SAMUM-2, Tellus B, 63, 430–447, https://doi.org/10.1111/j.1600-0889.2011.00544.x,
2011.
Kouassi, K. S., Billet, S., Garaßon, G., Verdin, A., Diouf,
A., Cazier, F., Djaman, J., Courcot, D., and Shirali, P.: Oxidative damage
induced in A549 cells by physically and chemically characterized air
particulate matter (PM2.5) collected in Abidjan, Côte d'Ivoire, J.
Appl. Toxicol., 30, 310–320, https://doi.org/10.1002/jat.1496, 2009.
Lamaison, L.: Caractérisation des particules atmosphériques et
identification de leurs sources dans une atmosphère urbaine sous influence
industrielle, Thèse Doctorat, Univ des Sciences et Technologies, Lille,
2006.
Léon, J.F., Akpo, A., Bedou, M., Djossou, J., Bodjrenou, M., Yoboué,
V., and Liousse, C.: Profondeur optique des aérosols sur le sud de
l'Afrique de l'Ouest, soumis à ACPD, 2019.
Li, T.-C., Yuan, C.-S., Hung, C.-H., Lin, H.-Y., Huang, H.-C., and Lee,
C.-L.: Chemical Characteristics of Marine Fine Aerosols over Sea and at
Offshore Islands during Three Cruise Sampling Campaigns in the Taiwan
Strait-Sea Salts and Anthropogenic Particles, Atmos. Chem. Phys. Discuss.,
1–27, https://doi.org/10.5194/acp-2016-384, 2016.
Li, Y., Schwandner, F. M., Sewell, H. J., Zivkovich, A., Tigges, M., Raja,
S., Holcomb, S., Molenar, J. V., Sherman, L., Archuleta, C., Lee, T., and
Collett, J. L.: Observations of ammonia, nitric acid and fine particles in a
rural gas production region, Atmos. Environ., 83, 80–89,
https://doi.org/10.1016/j.atmosenv.2013.10.007, 2014.
Liang, L., Engling, G., Du, Z., Cheng, Y., Duan, F., Liu, X., and He, K.:
Seasonal variations and source estimation of saccharides in atmospheric
particulate matter in Beijing, China, Chemosphere, 150, 365–377, 2016.
Liousse, C., Assamoi, E., Criqui, P., Granier, C., and Rosset, R.: Explosive
growth in African combustion emissions from 2005 to 2030, Environ. Res.
Lett., 9, 035003, https://doi.org/10.1088/1748-9326/9/3/035003, 2014.
Lonati, G., Ozgen, S., and Giugliano, M.: Primary and secondary carbonaceous
species in PM2.5 samples in Milan (Italy), Atmos. Environ.,
41, 4599–4610, https://doi.org/10.1016/j.atmosenv.2007.03.046, 2007.
Lowenthal, D., Zielinska, B., Samburova, V., Collins, D., Taylor, N., and
Kumar, N.: Evaluation of assumptions for estimating chemical light
extinction at U.S. national parks, J. Air Waste Manag.
Assoc., 65, 249–260, https://doi.org/10.1080/10962247.2014.986307, 2015.
Mason, B. and Moore, B. C.: Principles of Geochemistry, 4th Edn., John Wiley
and Sons, New York, 46–47, 1982.
Minguillón, M. C., Cirach, M., Hoek, G., Brunekreef, B., Tsai, M., de
Hoogh, K., Jedynska, A., Kooter, I. M., Nieuwenhuijsen, M., and Querol, X.:
Spatial variability of trace elements and sources for improved exposure
assessment in Barcelona, Atmos. Environ., 89, 268–281, https://doi.org/10.1016/j.atmosenv.2014.02.047, 2014.
Mkoma, S. L.: Physico-Chemical characterisation of atmospheric aerosols in
Tanzania, with emphasis on the carbonaceous aerosol components and on
chemical mass closure, PhD, Ghent University, Ghent, Belguim, 2008.
Mmari, A. G., Potgieter-Vermaak, S. S., Bencs, L., McCrindle, R. I., and Van
Grieken, R.: Elemental and ionic components of atmospheric aerosols and
associated gaseous pollutants in and near Dar es Salaam, Tanzania,
Atmos. Environ., 77, 51–61, https://doi.org/10.1016/j.atmosenv.2013.04.061,
2013.
MMEH (Ministère des Mines de l'Energie et d'Hydraulique): Tableau de
bord de l'Energie 2002 au Bénin, Direction Générale de
l'Energie, 2002.
Ngo, N. S., Asseko, S. V. J., Ebanega, M. O., Allo'o Allo'o, S. M., and
Hystad, P.: The relationship among PM2.5, traffic emissions, and
socioeconomic status: Evidence from Gabon using low-cost, portable air
quality monitors, Transport. Res. Pt. D,
68, 2–9, https://doi.org/10.1016/j.trd.2018.01.029, 2019.
Ozer, P.: Estimation de la pollution particulaire naturelle de l'air en 2003
à Niamey (Niger) à partir de données de visibilité
horizontale, 2005.
Pachauri, T., Singla, V., Satsangi, A., Lakhani, A., and Kumari, K. M.:
Characterization of carbonaceous aerosols with special reference to episodic
events at Agra, India, Atmos. Res., 128, 98–110, https://doi.org/10.1016/j.atmosres.2013.03.010, 2013.
Park, J. H., Mudunkotuwa, I. A., Mines, L. W. D., Anthony, T. R., Grassian,
V. H., and Peters, T. M.: A Granular Bed for Use in a Nanoparticle
Respiratory Deposition Sampler, Aerosol Sci. Technol., 49,
179–187, https://doi.org/10.1080/02786826.2015.1013521, 2015.
Person, A. and Tymen, G.: Mesurage des particules en suspension dans l'air
en relation avec la santé, Pollution atmosphèrique, 271–285, 2005.
Pipal, A. S., Jan, R., Satsangi, P. G., Tiwari, S., and Taneja, A.: Study of
Surface Morphology, Elemental Composition and Origin of Atmospheric Aerosols
(PM2.5 and PM10) over Agra, India, Aerosol Air Qual. Res., 14,
1685–1700, https://doi.org/10.4209/aaqr.2014.01.0017, 2014.
Pipal, A. S., Singh, S., and Satsangi, G. P.: Study on bulk to single
particle analysis of atmospheric aerosols at urban region, Urban Clim.,
27, 243–258, https://doi.org/10.1016/j.uclim.2018.12.008, 2019.
Prospero, J. M., Ginoux, P., Torres, O., Nicholson, S. E., and Gill, T. E.:
Environmental characterization of global sources of atmospheric soil dust
identified with the NIMBUS 7 Total Ozone Mapping Spectrometer (TOMS)
absorbing aerosol product, Rev. Geophys., 40, 1002, https://doi.org/10.1029/2000RG000095, 2002.
Qin, Y., Chan, C. K., and Chan, L. Y.: Characteristics of chemical
compositions of atmospheric aerosols in Hong Kong: spatial and seasonal
distributions, Sci. Total Environ., 206, 25–37, https://doi.org/10.1016/S0048-9697(97)00214-3, 1997.
Ramgolam, K., Favez, O., Cachier, H., Gaudichet, A., Marano, F., Martinon, L., and
Baeza-Squiban, A.: Size-partitioning of an urban aerosol to identify particle
determinants involved in the proinflammatory response induced in airway
epithelial cells, Part Fibre Toxicol., 6, 10, https://doi.org/10.1186/1743-8977-6-10, 2009.
Rengarajan, R., Sudheer, A. K., and Sarin, M. M.: Aerosol acidity and
secondary organic aerosol formation during wintertime over urban environment
in western India, Atmos. Environ., 45, 1940–1945, https://doi.org/10.1016/j.atmosenv.2011.01.026, 2011.
Samara, C., Kouimtzis, T., Tsitouridou, R., Kanias, G., and Simeonov, V.:
Chemical mass balance source apportionment of PM10 in an industrialized
urban area of Northern Greece, Atmos. Environ., 37, 41–54,
https://doi.org/10.1016/S1352-2310(02)00772-0, 2003.
Satsangi, A., Pachauri, T., Singla, V., Lakhani, A., and Kumari, K. M.:
Organic and elemental carbon aerosols at a suburban site, Atmos.
Res., 113, 13–21, https://doi.org/10.1016/j.atmosres.2012.04.012, 2012.
Saxena, P. and Hildemann, L. M.: Water-soluble organics in atmospheric
particles: a critical review of the literature and application of
thermodynamics to identify candidate compounds, J. Atmos. Chem., 24,
57–109, 1996.
Sciare, J., Oikonomou, K., Cachier, H., Mihalopoulos, N., Andreae, M. O.,
Maenhaut, W., and Sarda-Estève, R.: Aerosol mass closure and
reconstruction of the light scattering coefficient over the Eastern
Mediterranean Sea during the MINOS campaign, Atmos. Chem. Phys., 5,
2253–2265, https://doi.org/10.5194/acp-5-2253-2005, 2005.
Seinfeld, J. H. and Pandis, S. N.: Atmospheric Chemistry and Physics: from
Air Pollution to Climate Change, John Wiley and Sons, Inc. New York, 1998.
Sempére, R. and Kawamura, K.: Comparative distributions of dicarboxylic acids and related polar compounds in snow, rain and aerosols from urban atmosphere, Atmos. Environ., 28, 449–459, https://doi.org/10.1016/1352-2310(94)90123-6, 1994.
Shahsavani, A., Naddafi, K., Jaafarzadeh Haghighifard, N., Mesdaghinia, A.,
Yunesian, M., Nabizadeh, R., Arhami, M., Yarahmadi, M., Sowlat, M. H.,
Ghani, M., Jonidi Jafari, A., Alimohamadi, M., Motevalian, S. A., and
Soleimani, Z.: Characterization of ionic composition of TSP and PM10 during
the Middle Eastern Dust (MED) storms in Ahvaz, Iran, Environ. Monit. Assess.,
184, 6683–6692, https://doi.org/10.1007/s10661-011-2451-6, 2012.
Stone, R. S., Herber, A., Vitale, V., Mazzola, M., Lupi, A., Schnell, R. C.,
Dutton, E. G., Liu, P. S. K., Li, S.-M., Dethloff, K., Lampert, A., Ritter,
C., Stock, M., Neuber, R., and Maturilli, M.: A three-dimensional
characterization of Arctic aerosols from airborne Sun photometer
observations: PAM-ARCMIP, April 2009, J. Geophys. Res., 115, D13203,
https://doi.org/10.1029/2009JD013605, 2010.
Sullivan, A. P., Weber, R. J., Clements, A. L., Turner, J. R., Bae, M. S.,
and Schauer, J. J.: A method for on-line measurement of water-soluble
organic carbon in ambient aerosol particles: Results from an urban site:
on-line measurement of WSOC in aerosols, Geophys. Res. Lett., 31, L13105, https://doi.org/10.1029/2004GL019681, 2004.
Sun, Y., Zhuang, G., Wang, Y., Han, L., Guo, J., Dan, M., Zhang, W., Wang,
Z., and Hao, Z.: The airborne particulate pollution in Beijing –
concentration, composition, distribution and sources, Atmos.
Environ., 38, 5991–6004, https://doi.org/10.1016/j.atmosenv.2004.07.009, 2004.
Tang, X., Zhang, X., Ci, Z., Guo, J., and Wang, J.: Speciation of the major
inorganic salts in atmospheric aerosols of Beijing, China: Measurements and
comparison with model, Atmos. Environ., 133, 123–134, https://doi.org/10.1016/j.atmosenv.2016.03.013, 2016.
Tapsoba, D.: Caractérisation événementielle des régimes
pluviométriques ouestafricains et de leur récent changement,
Thèse de Doctorat, Univ. Paris-XI (Orsay), 100 pp., 1997.
Taylor, S. R.: Abundance of chemical elements in the continental crust: a
new table, Geochim. Cosmochim. Ac., 28, 1273–1285, https://doi.org/10.1016/0016-7037(64)90129-2, 1964.
Terzi, E., Argyropoulos, G., Bougatioti, A., Mihalopoulos, N., Nikolaou, K.,
and Samara, C.: Chemical composition and mass closure of ambient PM10 at
urban sites, Atmos. Environ., 44, 2231–2239, https://doi.org/10.1016/j.atmosenv.2010.02.019, 2010.
Tunno, B., Longley, I., Somervell, E., Edwards, S., Olivares, G., Gray, S.,
Cambal, L., Chubb, L., Roper, C., Coulson, G., and Clougherty, J. E.:
Separating spatial patterns in pollution attributable to woodsmoke and other
sources, during daytime and nighttime hours, in Christchurch, New Zealand,
Environ. Res., 171, 228–238, https://doi.org/10.1016/j.envres.2019.01.033,
2019.
Turpin, B. J., Cary, R. A., and Huntzicker, J. J.: An In Situ, Time-Resolved
Analyzer for Aerosol Organic and Elemental Carbon, Aerosol Sci.
Technol., 12, 161–171, https://doi.org/10.1080/02786829008959336, 1990.
United Nations: Department of Economic and Social Affairs, Population
Division (2019), World Population Prospects 2019, Vol. II: Demographic
Profiles, Made available under a Creative Commons license, available at:
http://creativecommons.org/licenses/by/3.0/igo/ (last access: 25 March 2020), 2019.
Val, S., Liousse, C., Doumbia, E. H. T., Galy-Lacaux, C., Cachier, H.,
Marchand, N., Badel, A., Gardrat, E., Sylvestre, A., and Baeza-Squiban, A.:
Physico-chemical characterization of African urban aerosols (Bamako in Mali
and Dakar in Senegal) and their toxic effects in human bronchial epithelial
cells: description of a worrying situation, Part Fibre Toxicol., 10, 10,
https://doi.org/10.1186/1743-8977-10-10, 2013.
Viana, M., Maenhaut, W., ten Brink, H. M., Chi, X., Weijers, E., Querol, X.,
Alastuey, A., Mikuška, P., and Večeřa, Z.: Comparative analysis
of organic and elemental carbon concentrations in carbonaceous aerosols in
three European cities, Atmos. Environ., 41, 5972–5983, https://doi.org/10.1016/j.atmosenv.2007.03.035, 2007.
Viana, M., López, J. M., Querol, X., Alastuey, A., García-Gacio,
D., Blanco-Heras, G., López-Mahía, P., Piñeiro-Iglesias, M.,
Sanz, M. J., Sanz, F., Chi, X., and Maenhaut, W.: Tracers and impact of open
burning of rice straw residues on PM in Eastern Spain, Atmos.
Environ., 42, 1941–1957, https://doi.org/10.1016/j.atmosenv.2007.11.012, 2008.
Viidanoja, J., Sillanpää, M., Laakia, J., Kerminen, V.-M., Hillamo,
R., Aarnio, P., and Koskentalo, T.: Organic and black carbon in PM2.5 and
PM10: 1 year of data from an urban site in Helsinki, Finland, Atmos.
Environ., 36, 3183–3193, https://doi.org/10.1016/S1352-2310(02)00205-4, 2002.
Wang, X., Bi, X., Sheng, G., and Fu, J.: Chemical Composition and Sources of
PM10 and PM2.5 Aerosols in Guangzhou, China, Environ. Monit. Assess.,
119, 425–439, https://doi.org/10.1007/s10661-005-9034-3, 2006.
Washington, R., Todd, M., Middleton, N. J., and Goudie, A. S.: Dust-Storm
Source Areas Determined by the Total Ozone Monitoring Spectrometer and
Surface Observations, Ann. Assoc. Am. Geogr.,
93, 297–313, https://doi.org/10.1111/1467-8306.9302003, 2003.
Watson, J. G. and Chow, J. C.: Estimating middle-, neighborhood-, and
urban-scale contributions to elemental carbon in Mexico City with a rapid
response aethalometer, J. Air Waste Manag. Assoc., 51, 1522–1528, 2001.
Watson, J. G., Chow, J. C., and Houck, J. E.: PM2.5 chemical source
profiles for vehicle exhaust, vegetative burning, geological material, and
coal burning in Northwestern Colorado during 1995, Chemosphere, 43,
1141–1151, https://doi.org/10.1016/S0045-6535(00)00171-5, 2001.
WHO (World Health Organization): 7 million premature deaths annually linked
to air pollution. Media Centre news release, Geneva: World Health
Organization, available at: http://www.who.int/mediacentre/news/releases/2014/air-pollution/en/ (last access: 14 November 2018), 2014.
Wilson, M. R., Lightbody, J. H., Donaldson, K., Sales, J., and Stone, V.:
Interactions between ultrafine particles and transition metals in vivo and
in vitro, Toxicol. Appl. Pharmacol., 184, 172–179, 2002.
Xiang, P., Zhou, X., Duan, J., Tan, J., He, K., Yuan, C., Ma, Y., and Zhang,
Y.: Chemical characteristics of water-soluble organic compounds (WSOC) in
PM2.5 in Beijing, China: 2011–2012, Atmos. Res., 183, 104–112, https://doi.org/10.1016/j.atmosres.2016.08.020, 2017.
Xie, Y., Wang, Y., Bilal, M., and Dong, W.: Mapping daily PM2.5 at 500 m resolution over Beijing with improved hazy day performance, Sci.
Total Environ., 659, 410–418, https://doi.org/10.1016/j.scitotenv.2018.12.365, 2019.
Xu, H., Léon, J.-F., Liousse, C., Guinot, B., Yoboué, V., Akpo, A. B., Adon, J., Ho, K. F., Ho, S. S. H., Li, L., Gardrat, E., Shen, Z., and Cao, J.: Personal exposure to PM2.5 emitted from typical anthropogenic sources in southern West Africa: chemical characteristics and associated health risks, Atmos. Chem. Phys., 19, 6637–6657, https://doi.org/10.5194/acp-19-6637-2019, 2019.
Xu, J., Zhang, Y., Zheng, S., and He, Y.: Aerosol effects on ozone
concentrations in Beijing: a model sensitivity study, J. Environ. Sci. (China),
24, 645–656, 2012.
Yu, P., Froyd, K. D., Portmann, R. W., Toon, O. B., Freitas, S. R., Bardeen,
C. G., Katich, J. M., Schwarz, J. P., Williamson, C., Kupc, A., Brock, C.,
Liu, S., Gao, R.-S., Schill, G., Fan, T., Rosenlof, K. H., and Murphy, D.
M.: An improved treatment of aerosol convective transport and removal in a
chemistry-climate model, Geophys. Res. Lett., submitted, 2020.
Zghaid, M., Noack, Y., Bounakla, M., and Benyaich, F.: Pollution
atmosphérique particulaire dans la ville de Kenitra (Maroc), Pollution
atmosphérique [En ligne], no. 203, mis à jour le
12 October 2015, https://doi.org/10.4267/pollution-atmospherique.1184, 2009.
Zhang, X. Y., Gong, S. L., Shen, Z. X., Mei, F. M., Xi, X. X., Liu, L.C.,
Zhou, Z. J., Wang, D., Wang, Y. Q., and Cheng, Y.: Characterization of soil
dust aerosol in China and its transport and distribution during 2001
ACE-Asia: 1. Network observations, J. Geophys. Res.-Atmos., 108, 4261,
https://doi.org/10.1029/2002JD002632, 2003.
Short summary
It is our responsibility to establish a link between emissions, air pollution, and health impacts for urban combustion sources, typical of Africa.
Our results show that the particulate concentrations observed at all sites far exceed the recommendations of WHO. The site influenced by domestic fires is the most polluted site, dominated by a significant fraction of ultrafine particles. These studies will eventually lead to the implementation of emission reduction solutions to improve air quality.
It is our responsibility to establish a link between emissions, air pollution, and health...
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