Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-20-5327-2020 |
Physico-chemical characterization of urban aerosols from specific combustion sources in West Africa at Abidjan in Cote d'Ivoire and Cotonou in Benin in the frame of the DACCIWA program | |
Adon, Aka Jacques1; Liousse, Catherine1; Doumbia, Elhadji Thierno2; Baeza-Squiban, Armelle3; Cachier, Helene1; Leon, Jean-Francois1; Yoboue, Veronique4; Akpo, Aristique Barthel5; Galy-Lacaux, Corinne1; Guinot, Benjamin1; Zouiten, Cyril6; Xu, Hongmei1,7; Gardrat, Eric1; Keita, Sekou8 | |
2020-05-06 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS |
ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2020 |
卷号 | 20期号:9页码:5327-5354 |
文章类型 | Article |
语种 | 英语 |
国家 | France; Cote Ivoire; Benin; Peoples R China |
英文摘要 | Urban air pollution in West Africa has yet to be well characterized. In the frame of DACCIWA (Dynamics-Aerosol-Chemistry-Cloud Interactions in West Africa) program, intensive measurement campaigns were performed in Abidjan (COte d'Ivoire) and Cotonou (Benin), in dry (January 2016 and 2017) and wet (July 2015 and 2016) seasons, at different sites chosen to be representative of African urban combustion sources, i.e., domestic fires (ADF), traffic (AT) and waste burning (AWB) sources in Abidjan and traffic source in Cotonou (CT). Both the size distribution of particulate matter (PM) and their chemical composition including elemental carbon (EC), organic carbon (OC), water-soluble organic carbon (WSOC), water-soluble inorganic ions (WSI) and trace metals were examined. Results show very high PM concentrations at all sites and a well-marked seasonality as well as a strong spatial variation. The average PM2.5 mass concentrations during the wet season are 517.3, 104.1, 90.3, and 69.1 mu g m(-3) at the ADF, CT, AT, and AWB sites, respectively. In the dry season, PM2.5 concentrations decrease to 375.7 mu g m(-3) at the ADF site, while they increase to 269.7, 141.3, and 175.3 mu g m(-3) at the CT, AT, and AWB sites, re- spectively. The annual PM2.5 levels at almost all sites are significantly higher than the WHO guideline level of 10 mu g m(-3). As for PM mass, (EC) and (OC) concentrations are also maximal at the ADF site, accounting for up to 69 % of the total PM mass. Such a high content is mainly linked to wood burning for domestic cooking and commercial food smoking activities. Dust contributions are dominant at CT (57 %-80 %), AT (20 %-70 %), and AWB (30 %-69 %) sites and especially in the coarse and fine-particle modes at the CT site and in the coarse fraction at the AT site, which may be explained by the impact of long-range desert-dust transport and resuspended particles from the roads, in addition to anthropogenic sources. The contributions of WSI to the total PM mass, mainly driven by chloride, nitrate, and calcium in the fine and/or large particles, are highly variable according to the sites but remain less than 30 %. Values are generally 1-3 times higher in the wet season than in the dry season. This is due not only to anthropogenic emissions but also to nitrate formation by reaction processes and natural emissions. The concentrations of trace elements reflect well the trends in dust at the traffic and AWB sites, with a predominance of Al, Na, Ca, Fe, and K, keys markers of crustal dust. This study constitutes an original database that characterizes specific African combustion sources. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000531852100002 |
WOS关键词 | SOLUBLE ORGANIC-CARBON ; PARTICULATE MATTER ; ATMOSPHERIC AEROSOLS ; CHEMICAL-COMPOSITION ; SOURCE APPORTIONMENT ; ELEMENTAL CARBON ; TRACE-ELEMENTS ; ANTHROPOGENIC SOURCES ; SEASONAL-VARIATIONS ; SULFUR-DIOXIDE |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/278753 |
专题 | 地球科学 |
作者单位 | 1.Univ Toulouse, Lab Aerol, UPS, CNRS, Toulouse, France; 2.Meteo France CNRS, Ctr Natl Rech Meteorol CNRM UMR 3589, Toulouse, France; 3.Univ Paris Diderot, Unite Biol Fonct & Adaptat RMCX, Reponses Mol & Cellulaires Xenobiot RMCX, CNRS,UMR 8251, Paris, France; 4.Univ Felix Houphoua Boigny, Lab Phys Atmosphere, BPV 34, Abidjan, Cote Ivoire; 5.Univ Abomey Calavi, Lab Phys Rayonnement, Abomey Calavi, Benin; 6.Univ Toulouse, UPS, CNRS, Geosci Environm Toulouse, Toulouse, France; 7.Xi An Jiao Tong Univ, Dept Environm Sci & Engn, Xian, Peoples R China; 8.Univ Peleforo Gbon Coulibaly Khorogo, UFR Sci Biol, BP 1328, Khorogo, Cote Ivoire |
推荐引用方式 GB/T 7714 | Adon, Aka Jacques,Liousse, Catherine,Doumbia, Elhadji Thierno,et al. Physico-chemical characterization of urban aerosols from specific combustion sources in West Africa at Abidjan in Cote d'Ivoire and Cotonou in Benin in the frame of the DACCIWA program[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2020,20(9):5327-5354. |
APA | Adon, Aka Jacques.,Liousse, Catherine.,Doumbia, Elhadji Thierno.,Baeza-Squiban, Armelle.,Cachier, Helene.,...&Keita, Sekou.(2020).Physico-chemical characterization of urban aerosols from specific combustion sources in West Africa at Abidjan in Cote d'Ivoire and Cotonou in Benin in the frame of the DACCIWA program.ATMOSPHERIC CHEMISTRY AND PHYSICS,20(9),5327-5354. |
MLA | Adon, Aka Jacques,et al."Physico-chemical characterization of urban aerosols from specific combustion sources in West Africa at Abidjan in Cote d'Ivoire and Cotonou in Benin in the frame of the DACCIWA program".ATMOSPHERIC CHEMISTRY AND PHYSICS 20.9(2020):5327-5354. |
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