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.
Research article
| 
06 May 2020
Research article |
| 06 May 2020
| 06 May 2020
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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Liyan Liu, Hongmei Xu, Mengyun Yang, Abdullah Akhtar, Jian Sun, and Zhenxing Shen
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Atmospheric microplastics and plasticizers can disperse into ecosystem and directly enter the human body, causing multiple adverse effects. The fingerprint markers of microplastics sources are very lacking. We examine the concentration, size distribution, eco-health risks and production of reactive oxygen species of microplastics from five typical sources, especially neglected rural sources. Our results could provide a scientific foundation for developing efficient management strategies.
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Atmos. Chem. Phys., 24, 13151–13182, https://doi.org/10.5194/acp-24-13151-2024, https://doi.org/10.5194/acp-24-13151-2024, 2024
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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 undersampled. 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 is found at Zoétélé (Cameroon) and Skukuza (South Africa).
Marie Lothon, François Gheusi, Fabienne Lohou, Véronique Pont, Serge Soula, Corinne Jambert, Solène Derrien, Yannick Bezombes, Emmanuel Leclerc, Gilles Athier, Antoine Vial, Alban Philibert, Bernard Campistron, Frédérique Saïd, 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
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Sarah Tinorua, Cyrielle Denjean, Pierre Nabat, Véronique Pont, Mathilde Arnaud, Thierry Bourrianne, Maria Dias Alves, and Eric Gardrat
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Qian Zhang, Yujie Zhang, Zhichun Wu, Bin Zhang, Yaling Zeng, Jian Sun, Hongmei Xu, Qiyuan Wang, Zhihua Li, Junji Cao, and Zhenxing Shen
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Revised manuscript not accepted
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Mohamed Lamine Kassamba-Diaby, Corinne Galy-Lacaux, Veronique Yoboué, Jonathan E. Hickman, Kerneels Jaars, Sylvain Gnamien, Richmond Konan, Eric Gardrat, and Siele Silué
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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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Surface ozone can decrease plant productivity and impair human health. In this study, we evaluate the change in surface ozone due to climate change over South America and Africa using Earth system models. We find that if the climate were to change according to the worst-case scenario used here, models predict that forested areas in biomass burning locations and urban populations will be at increasing risk of ozone exposure, but other areas will experience a climate benefit.
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)
Advances in characterization of black carbon particles and their associated coatings using the soot-particle aerosol mass spectrometer in Singapore, a complex city environment
Enrichment of organic nitrogen in fog residuals observed in the Italian Po Valley
Asian dust transport of proteinaceous matter from the Gobi Desert to northern China
Machine-learning-assisted chemical characterization and optical properties of atmospheric brown carbon in Nanjing, China
Technical note: Reconstructing missing surface aerosol elemental carbon data in long-term series with ensemble learning
Enhanced emission of intermediate-volatility/semi-volatile organic matter in gas and particle phases from ship exhausts with low-sulfur fuels
Measurement report: Crustal materials play an increasing role in elevating particle pH – insights from 12-year records in a typical inland city of China
Significant contributions of biomass burning to PM2.5-bound aromatic compounds: insights from field observations and quantum chemical calculations
Measurement report: In-depth characterization of ship emissions during operations in a Mediterranean port
Direct measurement of N2O5 heterogeneous uptake coefficients on atmospheric aerosols in southwestern China and evaluation of current parameterizations
Measurement report: Per- and polyfluoroalkyl substances (PFAS) in particulate matter (PM10) from activated sludge aeration
African dust transported to Barbados in the wintertime lacks indicators of chemical aging
A 60-year atmospheric nitrate isotope record from a southeastern Greenland ice core with minimal postdepositional alteration
Measurement report: Characterization of aerosol hygroscopicity over Southeast Asia during the NASA CAMP2Ex campaign
Individual particle compositions and aerosol mixing states at different altitudes over the ocean in East Asia
Molecular characterization of organic aerosols in urban and forested areas of Paris using high-resolution mass spectrometry
Measurement report: Wintertime aerosol characterization at an urban traffic site in Helsinki, Finland
Source apportionment and ecotoxicity of PM2.5 pollution events in a major Southern Hemisphere megacity: influence of a biofuel-impacted fleet and biomass burning
The impacts of pollution sources and temperature on the light absorption of HULIS were revealed by UHPLC-HRMS/MS at the molecular structure level
Effects of Anthropogenic Pollutants on Biogenic Secondary Organic Aerosol Formation in the Atmosphere of Mt. Hua, China
Marine organic aerosol at Mace Head: effects from phytoplankton and source region variability
Elemental composition, iron mineralogy and solubility of anthropogenic and natural mineral dust aerosols in Namibia: a case study analysis from the AEROCLO-sA campaign
Fossil-Dominated SOA Formation in Coastal China: Size-Divergent Pathways of Aqueous Fenton Reactions versus Gas-phase VOC Autoxidation
Measurement report: Sources and meteorology influencing highly time-resolved PM2.5 trace elements at three urban sites in the extremely polluted Indo-Gangetic Plain in India
Formation of highly absorptive secondary brown carbon through nighttime multiphase chemistry of biomass burning emissions
Hydroxymethanesulfonate (HMS) Formation under Urban and Marine Atmosphere: role of aerosol ionic strength
Measurement report: Vertically resolved atmospheric properties observed over the Southern Great Plains with the ArcticShark uncrewed aerial system
Technical note: Towards a stronger observational support for haze pollution control by interpreting carbonaceous aerosol results derived from different measurement approaches
Non-biogenic sources are an important but overlooked contributor to aerosol isoprene-derived organosulfates during winter in northern China
Unveiling single-particle composition, size, shape, and mixing state of freshly emitted Icelandic dust via electron microscopy analysis
The Critical Role of Volatile Organic Compounds Emission in Nitrate Formation in Lhasa, Tibetan Plateau: Insights from Oxygen Isotope Anomaly Measurements
The critical role of aqueous-phase processes in aromatic-derived nitrogen-containing organic aerosol formation in cities with different energy consumption patterns
Characterization of atmospheric water-soluble brown carbon in the Athabasca oil sands region, Canada
Sensitivity of aerosol and cloud properties to coupling strength of marine boundary layer clouds over the northwest Atlantic
Measurement Report: Molecular composition, sources, and evolution of atmospheric organic aerosols in a basin city in China
Burning conditions and transportation pathways determine biomass-burning aerosol properties in the Ascension Island marine boundary layer
Observations of high-time-resolution and size-resolved aerosol chemical composition and microphysics in the central Arctic: implications for climate-relevant particle properties
Measurement report: Brown carbon aerosol in rural Germany – sources, chemistry, and diurnal variations
Particle flux-gradient relationships in the high Arctic: Emission and deposition patterns across three surface types
Climatology of aerosol pH and its controlling factors at the Melpitz continental background site in central Europe
Atmospheric chemistry in East Asia determines the iron solubility of aerosol particles supplied to the North Pacific Ocean
Measurement Report: Polycyclic aromatic hydrocarbons (PAHs) and their alkylated (RPAHs), nitrated (NPAHs) and oxygenated (OPAHs) derivatives in the global marine atmosphere: occurrence, spatial variations, and source apportionment
Multiple eco-regions contribute to the seasonal cycle of Antarctic aerosol size distributions
Seasonal investigation of ultrafine-particle organic composition in an eastern Amazonian rainforest
Characterizing lead-rich particles in Beijing's atmosphere following coal-to-gas conversion: Insights from single particle aerosol mass spectrometry
Contrasting solubility and speciation of metal ions in total suspended particulate matter and fog from the coast of Namibia
Significant secondary formation of nitrogenous organic aerosols in an urban atmosphere revealed by bihourly measurements of bulk organic nitrogen and comprehensive molecular markers
High-resolution analyses of concentrations and sizes of refractory black carbon particles deposited in northwestern Greenland over the past 350 years – Part 2: Seasonal and temporal trends in refractory black carbon originated from fossil fuel combustion and biomass burning
Carbonate content and stable isotopic composition of aerosol carbon in the Canadian High Arctic
Significant role of biomass burning in heavy haze formation in Nanjing, a megacity in China: molecular-level insights from intensive PM2.5 sampling on winter hazy days
Mutian Ma, Laura-Hélèna Rivellini, Yichen Zong, Markus Kraft, Liya E. Yu, and Alex King Yin Lee
Atmos. Chem. Phys., 25, 8185–8211, https://doi.org/10.5194/acp-25-8185-2025, https://doi.org/10.5194/acp-25-8185-2025, 2025
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This work advances our understanding of the emission and atmospheric evolution of black carbon (BC) particles in Singapore, a complex urban environment impacted by multiple local and regional combustion sources, based on the improved source apportionment analysis of real-time aerosol mass spectrometry measurement.
Fredrik Mattsson, Almuth Neuberger, Liine Heikkinen, Yvette Gramlich, Marco Paglione, Matteo Rinaldi, Stefano Decesari, Paul Zieger, Ilona Riipinen, and Claudia Mohr
Atmos. Chem. Phys., 25, 7973–7989, https://doi.org/10.5194/acp-25-7973-2025, https://doi.org/10.5194/acp-25-7973-2025, 2025
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This study investigated aerosol–cloud interactions, focusing on organic nitrogen (ON) formation in the aqueous phase. Measurements were conducted in wintertime in the Po Valley, Italy, using aerosol mass spectrometry. The fog was enriched in more hygroscopic inorganic compounds and ON, containing, e.g., imidazoles. The formation of imidazole by aerosol–fog interactions could be confirmed for the first time in atmospheric observations. Findings highlight the role of fog in nitrogen aerosol formation.
Ren-Guo Zhu, Hua-Yun Xiao, Meiju Yin, Hao Xiao, Zhongkui Zhou, Yuanyuan Pan, Guo Wei, and Cheng Liu
Atmos. Chem. Phys., 25, 7699–7718, https://doi.org/10.5194/acp-25-7699-2025, https://doi.org/10.5194/acp-25-7699-2025, 2025
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The concentrations and δ15N isotopic values of CAAs (combined amino acids) in surface soil and plants from the Gobi Desert, as well as in PM2.5 samples from four cities in Northern China, were measured. CAAs transported by Gobi dust were rich in alanine, glycine and glutamic acid. Glycine and leucine in Gobi Desert sources exhibited δ15N depletion by more than 6 ‰ compared to their values in urban PM2.5. Substantial protein-N deposition can be transported by the Gobi Desert to northern China over brief periods.
Yu Huang, Xingru Li, Dan Dan Huang, Ruoyuan Lei, Binhuang Zhou, Yunjiang Zhang, and Xinlei Ge
Atmos. Chem. Phys., 25, 7619–7645, https://doi.org/10.5194/acp-25-7619-2025, https://doi.org/10.5194/acp-25-7619-2025, 2025
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This work comprises a comprehensive investigation into the chemical and optical properties of brown carbon (BrC) in PM2.5 samples collected in Nanjing, China. In particular, we used a machine learning approach to identify a list of key BrC species, which can be a good reference for future studies. Our findings extend understanding of BrC properties and are valuable to the assessment of BrC's impact on air quality and radiative forcing.
Qingxiao Meng, Yunjiang Zhang, Sheng Zhong, Jie Fang, Lili Tang, Yongcai Rao, Minfeng Zhou, Jian Qiu, Xiaofeng Xu, Jean-Eudes Petit, Olivier Favez, and Xinlei Ge
Atmos. Chem. Phys., 25, 7485–7498, https://doi.org/10.5194/acp-25-7485-2025, https://doi.org/10.5194/acp-25-7485-2025, 2025
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We developed a machine-learning-based method to reconstruct missing elemental carbon (EC) data in four Chinese cities from 2013 to 2023. Using machine learning, we filled data gaps and introduced a new approach to analyze EC trends. Our findings reveal a significant decline in EC due to stricter pollution controls, though this slowed after 2020. This study provides a versatile framework for addressing data gaps and supports strategies to reduce urban air pollution and its climate impacts.
Binyu Xiao, Fan Zhang, Zeyu Liu, Yan Zhang, Rui Li, Can Wu, Xinyi Wan, Yi Wang, Yubao Chen, Yong Han, Min Cui, Libo Zhang, Yingjun Chen, and Gehui Wang
Atmos. Chem. Phys., 25, 7053–7069, https://doi.org/10.5194/acp-25-7053-2025, https://doi.org/10.5194/acp-25-7053-2025, 2025
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Intermediate-volatility/semi-volatile organic compounds in gas and particle phases from ship exhausts are enhanced due to the switch of fuels from low sulfur to ultra-low sulfur. The findings indicate that optimization is necessary for the forthcoming global implementation of an ultra-low-sulfur oil policy. Besides, we find that organic diagnostic markers of hopanes in conjunction with the ratio of octadecanoic to tetradecanoic could be considered potential tracers for heavy fuel oil exhausts.
Hongyu Zhang, Shenbo Wang, Zhangsen Dong, Xiao Li, and Ruiqin Zhang
Atmos. Chem. Phys., 25, 6943–6955, https://doi.org/10.5194/acp-25-6943-2025, https://doi.org/10.5194/acp-25-6943-2025, 2025
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Analyzing 12-year Zhengzhou data revealed post-2019 crustal material rebound caused by soil dust resuspension, elevating particle pH. Similar coarse particle increases are observed across cities of the North China Plain. Long-term particle acidity evolution in this region requires an integrated assessment of interactions among acidic precursors, ammonia, and crustal components.
Yanqin Ren, Zhenhai Wu, Fang Bi, Hong Li, Haijie Zhang, Junling Li, Rui Gao, Fangyun Long, Zhengyang Liu, Yuanyuan Ji, and Gehui Wang
Atmos. Chem. Phys., 25, 6975–6990, https://doi.org/10.5194/acp-25-6975-2025, https://doi.org/10.5194/acp-25-6975-2025, 2025
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The daily concentrations of Polycyclic aromatic hydrocarbons (PAHs), oxygenated PAHs (OPAHs), and nitrated phenols (NPs) in PM2.5 were all increased during the heating season. Biomass burning was identified to be the primary source of these aromatic compounds, particularly for PAHs. Phenol and nitrobenzene are two main primary precursors for 4NP, with phenol showing lower reaction barriers. P-Cresol was identified as the primary precursor for the formation of 4-methyl-5-nitrocatechol.
Lise Le Berre, Brice Temime-Roussel, Grazia Maria Lanzafame, Barbara D'Anna, Nicolas Marchand, Stéphane Sauvage, Marvin Dufresne, Liselotte Tinel, Thierry Leonardis, Joel Ferreira de Brito, Alexandre Armengaud, Grégory Gille, Ludovic Lanzi, Romain Bourjot, and Henri Wortham
Atmos. Chem. Phys., 25, 6575–6605, https://doi.org/10.5194/acp-25-6575-2025, https://doi.org/10.5194/acp-25-6575-2025, 2025
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A summer campaign in a Mediterranean port examined pollution caused by ships. Two stations in the port measured pollution levels and captured over 350 ship plumes to study their chemical composition. Results showed that pollution levels, such as ultra-fine particles, were higher in the port than in the city and offer strong support to improve emission inventories. These findings may also serve as reference to assess the benefits of a sulfur Emission Control Area in the Mediterranean in 2025.
Jiayin Li, Tianyu Zhai, Xiaorui Chen, Haichao Wang, Shuyang Xie, Shiyi Chen, Chunmeng Li, Yuanjun Gong, Huabin Dong, and Keding Lu
Atmos. Chem. Phys., 25, 6395–6406, https://doi.org/10.5194/acp-25-6395-2025, https://doi.org/10.5194/acp-25-6395-2025, 2025
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We directly measured the dinitrogen pentoxide (N2O5) uptake coefficient using an aerosol flow tube, which critically impacts the NOx fate and particulate nitrate formation in a typical highland city, Kunming, in China. We found that the performance of current γ (N2O5) parameterizations showed deviations with the varying aerosol liquid water content (ALWC). Such differences would lead to biased estimation of particulate nitrate production potential. We give suggestions for future research directions.
Jishnu Pandamkulangara Kizhakkethil, Zongbo Shi, Anna Bogush, and Ivan Kourtchev
Atmos. Chem. Phys., 25, 5947–5958, https://doi.org/10.5194/acp-25-5947-2025, https://doi.org/10.5194/acp-25-5947-2025, 2025
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Pollution with per- and polyfluoroalkyl substances (PFAS) has received attention due to their environmental persistence and bioaccumulation, but their sources remain poorly understood. PM10 (particulate matter) collected above a scaled-down activated sludge tank treating domestic sewage in the UK was analysed for a range of short-, medium-, and long-chain PFAS. Eight PFAS were detected in the PM10. Our results suggest that wastewater treatment processes, i.e. activated sludge aeration, could aerosolise PFAS into airborne PM.
Haley M. Royer, Michael T. Sheridan, Hope E. Elliott, Edmund Blades, Nurun Nahar Lata, Zezhen Cheng, Swarup China, Zihua Zhu, Andrew P. Ault, and Cassandra J. Gaston
Atmos. Chem. Phys., 25, 5743–5759, https://doi.org/10.5194/acp-25-5743-2025, https://doi.org/10.5194/acp-25-5743-2025, 2025
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Saharan dust transported across the Atlantic to the Caribbean, South America, and North America is hypothesized to undergo chemical processing by acids that enhances cloud droplet formation and nutrient availability. In this study, chemical analysis performed on African dust deposited over Barbados shows that acid tracers are found mostly on sea salt and smoke particles, rather than dust, indicating that dust particles undergo minimal chemical processing.
Zhao Wei, Shohei Hattori, Asuka Tsuruta, Zhuang Jiang, Sakiko Ishino, Koji Fujita, Sumito Matoba, Lei Geng, Alexis Lamothe, Ryu Uemura, Naohiro Yoshida, Joel Savarino, and Yoshinori Iizuka
Atmos. Chem. Phys., 25, 5727–5742, https://doi.org/10.5194/acp-25-5727-2025, https://doi.org/10.5194/acp-25-5727-2025, 2025
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Nitrate isotope records in ice cores reveal changes in NOₓ emissions and atmospheric oxidation chemistry driven by human activity. However, UV-driven postdepositional processes can alter nitrate in snow, making snow accumulation rates critical for preserving these records. This study examines nitrate isotopes in a southeastern Greenland ice core, where high snow accumulation minimizes these effects, providing a reliable archive of atmospheric nitrogen cycling.
Genevieve Rose Lorenzo, Luke D. Ziemba, Avelino F. Arellano, Mary C. Barth, Ewan C. Crosbie, Joshua P. DiGangi, Glenn S. Diskin, Richard Ferrare, Miguel Ricardo A. Hilario, Michael A. Shook, Simone Tilmes, Jian Wang, Qian Xiao, Jun Zhang, and Armin Sorooshian
Atmos. Chem. Phys., 25, 5469–5495, https://doi.org/10.5194/acp-25-5469-2025, https://doi.org/10.5194/acp-25-5469-2025, 2025
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Novel aerosol hygroscopicity analyses of CAMP2Ex (Cloud, Aerosol, and Monsoon Processes Philippines Experiment) field campaign data show low aerosol hygroscopicity values in Southeast Asia. Organic carbon from smoke decreases hygroscopicity to levels more like those in continental than in polluted marine regions. Hygroscopicity changes at cloud level demonstrate how surface particles impact clouds in the region, affecting model representation of aerosol and cloud interactions in similar polluted marine regions with high organic carbon emissions.
Kouji Adachi, Atsushi Yoshida, Tatsuhiro Mori, Nobuhiro Moteki, Sho Ohata, Kazuyuki Kita, Yoshimi Kawai, and Makoto Koike
EGUsphere, https://doi.org/10.5194/egusphere-2025-2230, https://doi.org/10.5194/egusphere-2025-2230, 2025
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This study measured the compositions and mixing states of individual aerosol particles collected at different altitudes over the western North Pacific by simultaneous sampling from an aircraft and a research vessel. The results showed that they were strongly influenced by Siberian Forest biomass burning and mixed with sea spray, and identified various aerosol compositions at different altitudes, sizes, and aerosol sources, highlighting a wide range of individual particle compositions.
Diana L. Pereira, Chiara Giorio, Aline Gratien, Alexander Zherebker, Gael Noyalet, Servanne Chevaillier, Stéphanie Alage, Elie Almarj, Antonin Bergé, Thomas Bertin, Mathieu Cazaunau, Patrice Coll, Ludovico Di Antonio, Sergio Harb, Johannes Heuser, Cécile Gaimoz, Oscar Guillemant, Brigitte Language, Olivier Lauret, Camilo Macias, Franck Maisonneuve, Bénédicte Picquet-Varrault, Raquel Torres, Sylvain Triquet, Pascal Zapf, Lelia Hawkins, Drew Pronovost, Sydney Riley, Pierre-Marie Flaud, Emilie Perraudin, Pauline Pouyes, Eric Villenave, Alexandre Albinet, Olivier Favez, Robin Aujay-Plouzeau, Vincent Michoud, Christopher Cantrell, Manuela Cirtog, Claudia Di Biagio, Jean-François Doussin, and Paola Formenti
Atmos. Chem. Phys., 25, 4885–4905, https://doi.org/10.5194/acp-25-4885-2025, https://doi.org/10.5194/acp-25-4885-2025, 2025
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In order to study aerosols in environments influenced by anthropogenic and biogenic emissions, we performed analyses of samples collected during the ACROSS (Atmospheric Chemistry Of the Suburban Forest) campaign in summer 2022 in the greater Paris area. After analysis of the chemical composition by means of total carbon determination and high-resolution mass spectrometry, this work highlights the influence of anthropogenic inputs on the chemical composition of both urban and forested areas.
Kimmo Teinilä, Sanna Saarikoski, Henna Lintusaari, Teemu Lepistö, Petteri Marjanen, Minna Aurela, Heidi Hellén, Toni Tykkä, Markus Lampimäki, Janne Lampilahti, Luis Barreira, Timo Mäkelä, Leena Kangas, Juha Hatakka, Sami Harni, Joel Kuula, Jarkko V. Niemi, Harri Portin, Jaakko Yli-Ojanperä, Ville Niemelä, Milja Jäppi, Katrianne Lehtipalo, Joonas Vanhanen, Liisa Pirjola, Hanna E. Manninen, Tuukka Petäjä, Topi Rönkkö, and Hilkka Timonen
Atmos. Chem. Phys., 25, 4907–4928, https://doi.org/10.5194/acp-25-4907-2025, https://doi.org/10.5194/acp-25-4907-2025, 2025
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Physical and chemical properties of particulate matter and concentrations of trace gases were measured in a street canyon in Helsinki, Finland, and an urban background site in January–February 2022 to investigate the effect of wintertime conditions on pollutants. State-of-the-art instruments and a mobile laboratory were used, and the measurement data were analysed further with modelling tools like positive matrix factorization and the Pollution Detection Algorithm.
Guilherme Martins Pereira, Leonardo Yoshiaki Kamigauti, Rubens Fabio Pereira, Djacinto Monteiro dos Santos, Thayná da Silva Santos, José Vinicius Martins, Célia Alves, Cátia Gonçalves, Ismael Casotti Rienda, Nora Kováts, Thiago Nogueira, Luciana Rizzo, Paulo Artaxo, Regina Maura de Miranda, Marcia Akemi Yamasoe, Edmilson Dias de Freitas, Pérola de Castro Vasconcellos, and Maria de Fatima Andrade
Atmos. Chem. Phys., 25, 4587–4616, https://doi.org/10.5194/acp-25-4587-2025, https://doi.org/10.5194/acp-25-4587-2025, 2025
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The chemical composition of fine particulate matter was studied in the megacity of São Paulo (Brazil) during a polluted period. Vehicular-related sources remain relevant; however, a high contribution of biomass burning was observed and correlated with sample ecotoxicity. Emerging biomass burning sources, such as forest fires and sugarcane-bagasse-based power plants, highlight the need for additional control measures alongside stricter rules concerning vehicular emissions.
Tao Qiu, Yanting Qiu, Yongyi Yuan, Rui Su, Xiangxinyue Meng, Jialiang Ma, Xiaofan Wang, Yu Gu, Zhijun Wu, Yang Ning, Xiuyi Hua, Dapeng Liang, and Deming Dong
EGUsphere, https://doi.org/10.5194/egusphere-2025-1808, https://doi.org/10.5194/egusphere-2025-1808, 2025
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Our research reveals that some species from biomass burning and coal combustion dominate the light absorption of organic aerosols during winter. Cold weather helps these species accumulate in aerosols by slowing their degradation and altering atmospheric chemical processes. This means colder regions might experience stronger and more persistent climate impacts. Our findings highlight the importance of local temperatures and pollution sources when tackling climate challenges.
Can Wu, Yubao Chen, Yuwei Sun, Huijun Zhang, Si Zhang, Cong Cao, Jianjun Li, and Gehui Wang
EGUsphere, https://doi.org/10.5194/egusphere-2025-1668, https://doi.org/10.5194/egusphere-2025-1668, 2025
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Biogenic secondary organic aerosol (BSOA), as an important atmospheric component, is prevalent within the boundary layer and can influence air quality and human health. Our observations demonstrate that anthropogenic NOx and the enhanced aerosol water driven by sulfate inhibit BSOA formation in lifting air masses, leading to a moderate reduction in the SOA burden in the upper boundary layer.
Emmanuel Chevassus, Kirsten N. Fossum, Darius Ceburnis, Lu Lei, Chunshui Lin, Wei Xu, Colin O'Dowd, and Jurgita Ovadnevaite
Atmos. Chem. Phys., 25, 4107–4129, https://doi.org/10.5194/acp-25-4107-2025, https://doi.org/10.5194/acp-25-4107-2025, 2025
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This study presents the first source apportionment of organic aerosol at Mace Head via high-resolution mass spectrometry. Introducing transfer entropy as a novel method reveals that aged organic aerosol originates from both open-ocean ozonolysis and local peat-burning oxidation. Methanesulfonic acid and organic sea spray both mirror phytoplankton activity, with the former closely tied to coccolithophore blooms and the latter linked to diatoms, chlorophytes, and cyanobacteria.
Paola Formenti, Chiara Giorio, Karine Desboeufs, Alexander Zherebker, Marco Gaetani, Clarissa Baldo, Gautier Landrot, Simona Montebello, Servanne Chevaillier, Sylvain Triquet, Guillaume Siour, Claudia Di Biagio, Francesco Battaglia, Jean-François Doussin, Anais Feron, Andreas Namwoonde, and Stuart John Piketh
EGUsphere, https://doi.org/10.5194/egusphere-2025-446, https://doi.org/10.5194/egusphere-2025-446, 2025
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The elemental composition and solubility of several metals, including iron, at a coastal site in Namibia in August–September 2017, indicate that natural and anthropogenic dust had different solubility depending on mineralogy but mostly to the processing by fluoride ions from marine emissions, pointing out to the complexity of atmospheric/oceanic interactions in this region of the world influenced by the Benguela current and significant aerosol load.
Jia-Yuan Wang, Meng-Xue Tang, Shan Lu, Ke-Jin Tang, Xing Peng, Ling-Yan He, and Xiao-Feng Huang
EGUsphere, https://doi.org/10.5194/egusphere-2025-1034, https://doi.org/10.5194/egusphere-2025-1034, 2025
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Our study explores how secondary organic aerosols (SOA), a major component of air pollution, form in different particle sizes in a coastal city in China. We found that SOA in fine particles is mainly produced through aqueous chemical reactions, especially those involving iron. In contrast, coarse particles form SOA through reactions with ozone and gases from both fossil fuels and natural sources. These findings highlight the need for size-specific air pollution models.
Ashutosh K. Shukla, Sachchida N. Tripathi, Shamitaksha Talukdar, Vishnu Murari, Sreenivas Gaddamidi, Manousos-Ioannis Manousakas, Vipul Lalchandani, Kuldeep Dixit, Vinayak M. Ruge, Peeyush Khare, Mayank Kumar, Vikram Singh, Neeraj Rastogi, Suresh Tiwari, Atul K. Srivastava, Dilip Ganguly, Kaspar Rudolf Daellenbach, and André S. H. Prévôt
Atmos. Chem. Phys., 25, 3765–3784, https://doi.org/10.5194/acp-25-3765-2025, https://doi.org/10.5194/acp-25-3765-2025, 2025
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Our study delves into the elemental composition of aerosols at three sites across the Indo-Gangetic Plain (IGP), revealing distinct patterns during pollution episodes. We found significant increases in chlorine (Cl)-rich and solid fuel combustion (SFC) sources, indicating dynamic emission sources, agricultural burning impacts, and meteorological influences. Surges in Cl-rich particles during cold periods highlight their role in particle growth under high-relative-humidity conditions.
Ye Kuang, Biao Luo, Shan Huang, Junwen Liu, Weiwei Hu, Yuwen Peng, Duohong Chen, Dingli Yue, Wanyun Xu, Bin Yuan, and Min Shao
Atmos. Chem. Phys., 25, 3737–3752, https://doi.org/10.5194/acp-25-3737-2025, https://doi.org/10.5194/acp-25-3737-2025, 2025
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This research reveals the potential importance of nighttime NO3 radical chemistry and aerosol water in the rapid formation of secondary brown carbon from diluted biomass burning emissions. The findings enhance our understanding of nighttime biomass burning evolution and its implications for climate and regional air quality, especially regarding interactions with background aerosol water and water-rich fogs and clouds.
Rongshuang Xu, Yu-Chi Lin, Siyu Bian, Feng Xie, and Yan-Lin Zhang
EGUsphere, https://doi.org/10.5194/egusphere-2025-683, https://doi.org/10.5194/egusphere-2025-683, 2025
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This work reported the hydroxymethanesulfonate (HMS) level in a continental city and, for the first time, in marine atmosphere. The enhancement by aerosol ionic strength (IS) on HMS formation was quantified which first rise with increasing IS, peaking at 4 mol kg–1 before declining. Given the IS range of marine (2–6) and urban aerosol (6–20 mol kg–1) and the clearly negative correlation between humidity and IS, the moderate IS level under humid condition may notably boost ambient HMS formation.
Fan Mei, Qi Zhang, Damao Zhang, Jerome D. Fast, Gourihar Kulkarni, Mikhail S. Pekour, Christopher R. Niedek, Susanne Glienke, Israel Silber, Beat Schmid, Jason M. Tomlinson, Hardeep S. Mehta, Xena Mansoura, Zezhen Cheng, Gregory W. Vandergrift, Nurun Nahar Lata, Swarup China, and Zihua Zhu
Atmos. Chem. Phys., 25, 3425–3444, https://doi.org/10.5194/acp-25-3425-2025, https://doi.org/10.5194/acp-25-3425-2025, 2025
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This study highlights the unique capability of the ArcticShark, an uncrewed aerial system, in measuring vertically resolved atmospheric properties. Data from 32 research flights in 2023 reveal seasonal patterns and correlations with conventional measurements. The consistency and complementarity of in situ and remote sensing methods are highlighted. The study demonstrates the ArcticShark’s versatility in bridging data gaps and improving the understanding of vertical atmospheric structures.
Yuan Cheng, Ying-jie Zhong, Zhi-qing Zhang, Xu-bing Cao, and Jiu-meng Liu
EGUsphere, https://doi.org/10.5194/egusphere-2025-537, https://doi.org/10.5194/egusphere-2025-537, 2025
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As an emerging hotspot of atmospheric sciences, Northeast China is distinct due to the frigid winter and the strong emissions from agricultural fires. Based on field campaigns conducted in Harbin, we successively identified the analytical method that could lead to proper results of organic and elemental carbon. Our results are believed to be a support for future efforts on exploration of the PM2.5 sources in Northeast China, which are essential for further improving the regional air quality.
Ting Yang, Yu Xu, Yu-Chen Wang, Yi-Jia Ma, Hong-Wei Xiao, Hao Xiao, and Hua-Yun Xiao
Atmos. Chem. Phys., 25, 2967–2978, https://doi.org/10.5194/acp-25-2967-2025, https://doi.org/10.5194/acp-25-2967-2025, 2025
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Previous measurement–model comparisons of atmospheric isoprene levels showed a significant unidentified source of isoprene in some northern Chinese cities during winter. Here, the first combination of large-scale observations and field combustion experiments provides novel insights into biomass burning emissions as a significant source of isoprene-derived organosulfates during winter in northern cities of China.
Agnesh Panta, Konrad Kandler, Kerstin Schepanski, Andres Alastuey, Pavla Dagsson Waldhauserova, Sylvain Dupont, Melanie Eknayan, Cristina González-Flórez, Adolfo González-Romero, Martina Klose, Mara Montag, Xavier Querol, Jesús Yus-Díez, and Carlos Pérez García-Pando
EGUsphere, https://doi.org/10.5194/egusphere-2025-494, https://doi.org/10.5194/egusphere-2025-494, 2025
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Iceland is among the most active dust source areas in the world. Dust properties are influenced by particle size, mineralogy, shape, and mixing state. This work characterizes freshly emitted individual aerosol particles of Icelandic dust using electron microscopy. Our study provides insights into critical particle-specific information will contribute to better constraining climate models that consider mineralogical variations in their representation of the dust cycle.
Xueqin Zheng, Junwen Liu, Nima Chuduo, Bian Ba, Pengfei Yu, Phu Drolgar, Fang Cao, and Yanlin Zhang
EGUsphere, https://doi.org/10.5194/egusphere-2025-164, https://doi.org/10.5194/egusphere-2025-164, 2025
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In this study, we present the first report on the annual variation of stable oxygen isotope anomalies (∆17O = δ17O - 0.52 × δ18O) in NO3- collected from the urban area of Lhasa , on the Tibetan Plateau, China. Using a Bayesian isotope mixture model, we found that the relative contribution of the NO3+VOC pathway to NO3- formation in spring in Lhasa was several times higher than in urban cities, highlighting the significant influence of VOC transported from outside the Tibetan Plateau.
Yi-Jia Ma, Yu Xu, Ting Yang, Lin Gui, Hong-Wei Xiao, Hao Xiao, and Hua-Yun Xiao
Atmos. Chem. Phys., 25, 2763–2780, https://doi.org/10.5194/acp-25-2763-2025, https://doi.org/10.5194/acp-25-2763-2025, 2025
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The abundance, potential precursors, and main formation mechanisms of nitrogen-containing organic compounds (NOCs) in PM2.5 during winter were compared among cities with different energy consumption patterns. The aerosol NOC pollution during winter in China is closely associated with the intensity of precursor emissions and the aqueous-phase processes. Our results highlight the importance of emission reduction strategies in controlling aerosol NOCs pollution during winter in China.
Dane Blanchard, Mark Gordon, Duc Huy Dang, Paul Andrew Makar, and Julian Aherne
Atmos. Chem. Phys., 25, 2423–2442, https://doi.org/10.5194/acp-25-2423-2025, https://doi.org/10.5194/acp-25-2423-2025, 2025
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This study offers the first known evaluation of water-soluble brown carbon aerosols in the Athabasca oil sands region (AOSR), Canada. Fluorescence spectroscopy analysis of aerosol samples from five regional sites (collected during the summer of 2021) identified oil sands operations as a measurable brown carbon source. Industrial aerosol emissions were unlikely to impact regional radiative forcing. These findings show that fluorescence spectroscopy can be used to monitor brown carbon in the AOSR.
Kira Zeider, Kayla McCauley, Sanja Dmitrovic, Leong Wai Siu, Yonghoon Choi, Ewan C. Crosbie, Joshua P. DiGangi, Glenn S. Diskin, Simon Kirschler, John B. Nowak, Michael A. Shook, Kenneth L. Thornhill, Christiane Voigt, Edward L. Winstead, Luke D. Ziemba, Paquita Zuidema, and Armin Sorooshian
Atmos. Chem. Phys., 25, 2407–2422, https://doi.org/10.5194/acp-25-2407-2025, https://doi.org/10.5194/acp-25-2407-2025, 2025
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In situ aircraft data collected over the northwest Atlantic Ocean are utilized to compare aerosol conditions and turbulence between near-surface and below-cloud-base altitudes for different regimes of coupling strength between those two levels, along with how cloud microphysical properties vary across those regimes. Stronger coupling yields more homogenous aerosol structure vertically along with higher cloud drop concentrations and sea salt influence in clouds.
Junke Zhang, Xinyi Fu, Chunying Chen, Yunfei Su, Siyu Liu, Luyao Chen, Yubao Chen, Gehui Wang, and Andre S. H. Prevot
EGUsphere, https://doi.org/10.5194/egusphere-2025-92, https://doi.org/10.5194/egusphere-2025-92, 2025
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The 125 organic aerosol (OA) compounds in PM2.5 in winter in Chengdu were measured at the molecular level. OA was dominated by fatty acids, phthalate esters, and anhydrosugars, and were deeply influenced by anthropogenic sources. As pollution worsens: secondary inorganic species and secondary organic carbon (OC) dominated the increase in PM2.5; fatty acids and anhydrosugars dominated the increase in OA; and the contribution of secondary formation and biomass burning to OC increased markedly.
Amie Dobracki, Ernie R. Lewis, Arthur J. Sedlacek III, Tyler Tatro, Maria A. Zawadowicz, and Paquita Zuidema
Atmos. Chem. Phys., 25, 2333–2363, https://doi.org/10.5194/acp-25-2333-2025, https://doi.org/10.5194/acp-25-2333-2025, 2025
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Biomass-burning aerosol is commonly present in the marine boundary layer over the southeast Atlantic Ocean between June and October. Our research indicates that burning conditions, aerosol transport pathways, and prolonged oxidation processes (heterogeneous and aqueous phases) determine the chemical, microphysical, and optical properties of the boundary layer aerosol. Notably, we find that the aerosol optical properties can be estimated from the chemical properties alone.
Benjamin Heutte, Nora Bergner, Hélène Angot, Jakob B. Pernov, Lubna Dada, Jessica A. Mirrielees, Ivo Beck, Andrea Baccarini, Matthew Boyer, Jessie M. Creamean, Kaspar R. Daellenbach, Imad El Haddad, Markus M. Frey, Silvia Henning, Tiia Laurila, Vaios Moschos, Tuukka Petäjä, Kerri A. Pratt, Lauriane L. J. Quéléver, Matthew D. Shupe, Paul Zieger, Tuija Jokinen, and Julia Schmale
Atmos. Chem. Phys., 25, 2207–2241, https://doi.org/10.5194/acp-25-2207-2025, https://doi.org/10.5194/acp-25-2207-2025, 2025
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Limited aerosol measurements in the central Arctic hinder our understanding of aerosol–climate interactions in the region. Our year-long observations of aerosol physicochemical properties during the MOSAiC expedition reveal strong seasonal variations in aerosol chemical composition, where the short-term variability is heavily affected by storms in the Arctic. Local wind-generated particles are shown to be an important source of cloud seeds, especially in autumn.
Feng Jiang, Harald Saathoff, Uzoamaka Ezenobi, Junwei Song, Hengheng Zhang, Linyu Gao, and Thomas Leisner
Atmos. Chem. Phys., 25, 1917–1930, https://doi.org/10.5194/acp-25-1917-2025, https://doi.org/10.5194/acp-25-1917-2025, 2025
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The chemical composition of brown carbon in the particle and gas phase was determined by mass spectrometry. BrC in the gas phase was mainly controlled by secondary formation and particle-to-gas partitioning. BrC in the particle phase was mainly from secondary formation. This work helps to get a better understanding of diurnal variations and the sources of brown carbon aerosol at a rural location in central Europe.
Theresa Mathes, Heather Guy, John Prytherch, Julia Kojoj, Ian Brooks, Sonja Murto, Paul Zieger, Birgit Wehner, Michael Tjernström, and Andreas Held
EGUsphere, https://doi.org/10.5194/egusphere-2025-183, https://doi.org/10.5194/egusphere-2025-183, 2025
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The Arctic is warming faster than the global average and aerosol-cloud-sea-ice interactions are crucial for studying its climate system. During the ARTofMELT Expedition 2023, particle and sensible heat fluxes were measured over multiple surfaces. Wide lead surfaces acted as particle sources with the strongest sensible heat fluxes, while closed ice surfaces acted as a particle sink. This study improves methods to measure these interactions, enhancing our understanding of Arctic climate processes.
Vikram Pratap, Christopher J. Hennigan, Bastian Stieger, Andreas Tilgner, Laurent Poulain, Dominik van Pinxteren, Gerald Spindler, and Hartmut Herrmann
EGUsphere, https://doi.org/10.5194/egusphere-2025-457, https://doi.org/10.5194/egusphere-2025-457, 2025
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In this work, we characterize trends in aerosol pH and its controlling factors over the period of 2010 – 2019 at the Melpitz research station in eastern Germany. We find strong trends in aerosol pH and major inorganic species in response to changing emissions. We conduct a detailed thermodynamic analysis of the aerosol system and discuss implications for controlling PM2.5 in the region.
Kohei Sakata, Shotaro Takano, Atsushi Matsuki, Yasuo Takeichi, Hiroshi Tanimoto, Aya Sakaguchi, Minako Kurisu, and Yoshio Takahashi
EGUsphere, https://doi.org/10.5194/egusphere-2025-161, https://doi.org/10.5194/egusphere-2025-161, 2025
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Deposition of aerosol iron (Fe) into the ocean stimulates primary production and influences the global carbon cycle, although the factors governing the aerosol Fe solubility remain uncertain. Our observations in Japan revealed that both mineral dust and anthropogenic aerosols are significant sources of dissolved Fe, and that atmospheric chemical weathering enhances their solubility. This finding is expected to play a crucial role in estimating the supply of dissolved iron to the ocean.
Rui Li, Yubing Shen, Yumeng Shao, Yining Gao, Ziwei Yao, Qian Liu, Xing Liu, and Guitao Shi
EGUsphere, https://doi.org/10.5194/egusphere-2024-3740, https://doi.org/10.5194/egusphere-2024-3740, 2025
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It is the first time to reveal the global variations of PAHs derivatives in the marine air. We found that marine aerosols in East China Sea (ECS) and Western Pacific (WP) were significantly affected by coal and engine combustion, while those in Bismarck Sea (BS) and East Australian Sea (EAS) were mainly influenced by wildfire and coal combustion. Antarctic Ocean (AO) was dominated by biomass burning and local shipping emissions. This finding help elucidate the mechanism of global PAH cycle.
James Brean, David C. S. Beddows, Eija Asmi, Aki Virkkula, Lauriane L. J. Quéléver, Mikko Sipilä, Floortje Van Den Heuvel, Thomas Lachlan-Cope, Anna Jones, Markus Frey, Angelo Lupi, Jiyeon Park, Young Jun Yoon, Rolf Weller, Giselle L. Marincovich, Gabriela C. Mulena, Roy M. Harrison, and Manuel Dall'Osto
Atmos. Chem. Phys., 25, 1145–1162, https://doi.org/10.5194/acp-25-1145-2025, https://doi.org/10.5194/acp-25-1145-2025, 2025
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Our results emphasise how understanding the geographical variation in surface types across the Antarctic is key to understanding secondary aerosol sources.
Adam E. Thomas, Hayley S. Glicker, Alex B. Guenther, Roger Seco, Oscar Vega Bustillos, Julio Tota, Rodrigo A. F. Souza, and James N. Smith
Atmos. Chem. Phys., 25, 959–977, https://doi.org/10.5194/acp-25-959-2025, https://doi.org/10.5194/acp-25-959-2025, 2025
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We present measurements of the organic composition of ultrafine particles collected from the eastern Amazon, an understudied region that is subjected to increasing human influence. We find that while isoprene chemistry is likely significant for ultrafine-particle growth throughout the year, compounds related to other sources, such as biological-spore emissions and biomass burning, exhibit striking seasonal differences, implying extensive variation in regional ultrafine-particle sources.
Xiufeng Lian, Yongjiang Xu, Fengxian Liu, Long Peng, Xiaodong Hu, Guigang Tang, Xu Dao, Hui Guo, Liwei Wang, Bo Huang, Chunlei Cheng, Lei Li, Guohua Zhang, Xinhui Bi, Xiaofei Wang, Zhen Zhou, and Mei Li
EGUsphere, https://doi.org/10.5194/egusphere-2024-3469, https://doi.org/10.5194/egusphere-2024-3469, 2025
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In this study, we analyzed the mixing state and atmospheric chemical processes of Pb-rich single particles in Beijing. Then, we focused on analyzing the differences in Pb-rich particles between the heating period and non-heating period, as well as the formation mechanism of lead nitrate after coal-to-gas conversion. Our results highlighted the improvement of coal-to-gas conversion on Pb in the particulate.
Chiara Giorio, Anne Monod, Valerio Di Marco, Pierre Herckes, Denise Napolitano, Amy Sullivan, Gautier Landrot, Daniel Warnes, Marika Nasti, Sara D'Aronco, Agathe Gérardin, Nicolas Brun, Karine Desboeufs, Sylvain Triquet, Servanne Chevaillier, Claudia Di Biagio, Francesco Battaglia, Frédéric Burnet, Stuart J. Piketh, Andreas Namwoonde, Jean-François Doussin, and Paola Formenti
EGUsphere, https://doi.org/10.5194/egusphere-2024-4140, https://doi.org/10.5194/egusphere-2024-4140, 2025
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A comparison between the solubility of trace metals in pairs of total suspended particulate (TSP) and fog water samples collected in Henties Bay, Namibia, during the AEROCLO-sA field campaign is presented. We found enhanced solubility of metals in fog samples which we attributed to metal-ligand complexes formation in the early stages of particle activation into droplets which can then remain in a kinetically stable form in fog or lead to the formation of colloidal nanoparticles.
Xu Yu, Min Zhou, Shuhui Zhu, Liping Qiao, Jinjian Li, Yingge Ma, Zijing Zhang, Kezheng Liao, Hongli Wang, and Jian Zhen Yu
EGUsphere, https://doi.org/10.5194/egusphere-2024-4103, https://doi.org/10.5194/egusphere-2024-4103, 2025
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Online measurements of bulk aerosol organic nitrogen (ON), in conjunction with a comprehensive array of source markers, have revealed five emission sources and five potentially significant formation processes of nitrogenous organic aerosols. This study provides first quantitative source analysis of ON aerosol and valuable observational evidence on secondary ON aerosol formation through NH3 and NOx chemistries.
Kumiko Goto-Azuma, Yoshimi Ogawa-Tsukagawa, Kaori Fukuda, Koji Fujita, Motohiro Hirabayashi, Remi Dallmayr, Jun Ogata, Nobuhiro Moteki, Tatsuhiro Mori, Sho Ohata, Yutaka Kondo, Makoto Koike, Sumito Matoba, Moe Kadota, Akane Tsushima, Naoko Nagatsuka, and Teruo Aoki
Atmos. Chem. Phys., 25, 657–683, https://doi.org/10.5194/acp-25-657-2025, https://doi.org/10.5194/acp-25-657-2025, 2025
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Monthly ice core records spanning 350 years from Greenland show trends in refractory black carbon (rBC) concentrations and sizes. rBC levels have increased since the 1870s due to the inflow of anthropogenic rBC, with larger diameters than those from biomass burning (BB) rBC. High summer BB rBC peaks may reduce the ice sheet albedo, but BB rBC showed no increase until the early 2000s. These results are vital for validating aerosol and climate models.
Petr Vodička, Kimitaka Kawamura, Bhagawati Kunwar, Lin Huang, Dhananjay K. Deshmukh, Md. Mozammel Haque, Sangeeta Sharma, and Leonard Barrie
EGUsphere, https://doi.org/10.5194/egusphere-2024-3656, https://doi.org/10.5194/egusphere-2024-3656, 2025
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Carbonate carbon (CC) is not negligible in Arctic total suspended particles (TSP). If not considered, CC biases the contribution of elemental and organic carbon. CC content in TSP was strongly reflected in the δ13C values of total carbon (TC). Carbon contribution from CaCO3 supports strong dependence of CC and δ13C on Ca. Finally, two hypothetical CC sources were identified based on the analysis of air mass back trajectories – dust resuspension and marine microorganisms.
Mingjie Kang, Mengying Bao, Wenhuai Song, Aduburexiati Abulimiti, Changliu Wu, Fang Cao, Sönke Szidat, and Yanlin Zhang
Atmos. Chem. Phys., 25, 73–91, https://doi.org/10.5194/acp-25-73-2025, https://doi.org/10.5194/acp-25-73-2025, 2025
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Reports on molecular-level knowledge of high-temporal-resolution particulate matter ≤2.5 µm in diameter (PM2.5) on hazy days are limited. We investigated various PM2.5 species and their sources. The results show biomass burning (BB) was the main source of organic carbon. Moreover, BB enhanced fungal spore emissions and secondary aerosol formation. The contribution of non-fossil sources increased with increasing haze pollution, suggesting BB may be an important driver of haze events in winter.
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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