GSTDTAP  > 地球科学
DOI10.5194/acp-18-9617-2018
An apportionment method for the oxidative potential of atmospheric particulate matter sources: application to a one-year study in Chamonix, France
Weber, Samuel1; Uzu, Gaelle1; Calas, Aude1; Chevrier, Florie1,2; Besombes, Jean-Luc2; Charron, Aurelie1,3; Salameh, Dalia1; Jezek, Irena4; Mocnik, Grisa4,5; Jaffrezo, Jean-Luc1
2018-07-09
发表期刊ATMOSPHERIC CHEMISTRY AND PHYSICS
ISSN1680-7316
EISSN1680-7324
出版年2018
卷号18期号:13页码:9617-9629
文章类型Article
语种英语
国家France; Slovenia
英文摘要

Inhaled aerosolized particulate matter (PM) induces cellular oxidative stress in vivo, leading to adverse health outcomes. The oxidative potential (OP) of PM appears to be a more relevant proxy of the health impact of the aerosol rather than the total mass concentration. However, the relative contributions of the aerosol sources to the OP are still poorly known. In order to better quantify the impact of different PM sources, we sampled aerosols in a French city for one year (2014, 115 samples). A coupled analysis with detailed chemical speciation (more than 100 species, including organic and carbonaceous compounds, ions, metals and aethalometer measurements) and two OP assays (ascorbic acid, AA, and dithiothreitiol, DTT) in a simulated lung fluid (SLF) were performed in these samples. We present in this study a statistical framework using a coupled approach with positive matrix factorization (PMF) and multiple linear regression to attribute a redox-activity to PM sources. Our results highlight the importance of the biomass burning and vehicular sources to explain the observed OP for both assays. In general, we see a different contribution of the sources when considering the OP AA, OP DTT or the mass of the PM10. Moreover, significant differences are observed between the DTT and AA tests which emphasized chemical specificities of the two tests and the need of a standardized approach for the future studies on epidemiology or toxicology of the PM.


领域地球科学
收录类别SCI-E
WOS记录号WOS:000438115500003
WOS关键词REGIONAL BACKGROUND SITES ; WATER-SOLUBLE PM2.5 ; DITHIOTHREITOL DTT ; CHEMICAL-COMPOSITION ; AMBIENT PARTICLES ; ORGANIC-CARBON ; AIR-POLLUTION ; BLACK CARBON ; PART 1 ; AEROSOL
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/22761
专题地球科学
作者单位1.Univ Grenoble Alpes, IRD, IGE, CNRS,UMR 5001, F-38000 Grenoble, France;
2.Univ Savoie Mt Blanc, LCME, F-73000 Chambery, France;
3.IFFSTAAR, F-69675 Bron, France;
4.Aerosol Doo, Kamniska 41, Ljubljana 1000, Slovenia;
5.Jozef Stefan Inst, Jamova 39, Ljubljana 1000, Slovenia
推荐引用方式
GB/T 7714
Weber, Samuel,Uzu, Gaelle,Calas, Aude,et al. An apportionment method for the oxidative potential of atmospheric particulate matter sources: application to a one-year study in Chamonix, France[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2018,18(13):9617-9629.
APA Weber, Samuel.,Uzu, Gaelle.,Calas, Aude.,Chevrier, Florie.,Besombes, Jean-Luc.,...&Jaffrezo, Jean-Luc.(2018).An apportionment method for the oxidative potential of atmospheric particulate matter sources: application to a one-year study in Chamonix, France.ATMOSPHERIC CHEMISTRY AND PHYSICS,18(13),9617-9629.
MLA Weber, Samuel,et al."An apportionment method for the oxidative potential of atmospheric particulate matter sources: application to a one-year study in Chamonix, France".ATMOSPHERIC CHEMISTRY AND PHYSICS 18.13(2018):9617-9629.
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