气候变化领域集成服务门户(CCPortal): Disparities in particulate matter (PM10) origins and oxidative potential at a city scale (Grenoble, France) - Part 1: Source apportionment at three neighbouring sites

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DOI	10.5194/acp-21-5415-2021
	Disparities in particulate matter (PM10) origins and oxidative potential at a city scale (Grenoble, France) - Part 1: Source apportionment at three neighbouring sites
	Borlaza L.J.S.; Weber S.; Uzu G.; Jacob V.; Cañete T.; Micallef S.; Trébuchon C.; Slama R.; Favez O.; Jaffrezo J.-L.
发表日期	2021
ISSN	1680-7316
起始页码	5415
结束页码	5437
卷号	21 期号:7
英文摘要	A fine-scale source apportionment of PM10 was conducted in three different urban sites (background, hypercenter, and peri-urban) within 15 km of the city in Grenoble, France using Positive Matrix Factorization (PMF 5.0) on measured chemical species from collected filters (24 h) from February 2017 to March 2018. To improve the PMF solution, several new organic tracers (3-MBTCA, pinic acid, phthalic acid, MSA, and cellulose) were additionally used in order to identify sources that are commonly unresolved by classic PMF methodologies. An 11-factor solution was obtained in all sites, including commonly identified sources from primary traffic (13 %), nitrate-rich (17 %), sulfate-rich (17 %), industrial (1 %), biomass burning (22 %), aged sea salt (4 %), sea/road salt (3 %), and mineral dust (7 %), and the newly found sources from primary biogenic (4 %), secondary biogenic oxidation (10 %), and MSA-rich (3 %). Generally, the chemical species exhibiting similar temporal trends and strong correlations showed uniformly distributed emission sources in the Grenoble basin. The improved PMF model was able to obtain and differentiate chemical profiles of specific sources even at high proximity of receptor locations, confirming its applicability in a fine-scale resolution. In order to test the similarities between the PMF-resolved sources, the Pearson distance and standardized identity distance (PDSID) of the factors in each site were compared. The PD-SID metric determined whether a given source is homogeneous (i.e., with similar chemical profiles) or heterogeneous over the three sites, thereby allowing better discrimination of localized characteristics of specific sources. Overall, the addition of the new tracers allowed the identification of substantial sources (especially in the SOA fraction) that would not have been identified or possibly mixed with other factors, resulting in an enhanced resolution and sound source profile of urban air quality at a city scale. © 2021 Author(s).
语种	英语
scopus关键词	air quality; atmospheric pollution; biomass burning; carbon emission; industrial waste; particulate matter; urban atmosphere; Auvergne-Rhone-Alpes; France; Grenoble; Isere
来源期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/246987
作者单位	University Grenoble Alpes, CNRS, IRD, INP-G, IGE (UMR 5001), Grenoble, 38000, France; INERIS, Parc Technologique Alata, BP 2, Verneuil-en-Halatte, 60550, France; Laboratoire Central de Surveillance de la Qualité de l'Air (LCSQA), Verneuil-en-Halatte, 60550, France; Atmo Auvergne-Rhônes Alpes, Grenoble, 38400, France; IAB, Team of Environmental Epidemiology applied to Reproduction and Respiratory Health, University of Grenoble Alpes, Grenoble, 38000, France
推荐引用方式 GB/T 7714	Borlaza L.J.S.,Weber S.,Uzu G.,et al. Disparities in particulate matter (PM10) origins and oxidative potential at a city scale (Grenoble, France) - Part 1: Source apportionment at three neighbouring sites[J],2021,21(7).
APA	Borlaza L.J.S..,Weber S..,Uzu G..,Jacob V..,Cañete T..,...&Jaffrezo J.-L..(2021).Disparities in particulate matter (PM10) origins and oxidative potential at a city scale (Grenoble, France) - Part 1: Source apportionment at three neighbouring sites.ATMOSPHERIC CHEMISTRY AND PHYSICS,21(7).
MLA	Borlaza L.J.S.,et al."Disparities in particulate matter (PM10) origins and oxidative potential at a city scale (Grenoble, France) - Part 1: Source apportionment at three neighbouring sites".ATMOSPHERIC CHEMISTRY AND PHYSICS 21.7(2021).