Similarities and differences in PM10 and PM2.5 concentrations, chemical compositions and sources in Hefei City, China

doi:10.1016/j.chemosphere.2018.12.123

IEECAS OpenIR > 黄土与第四纪地质国家重点实验室（2010~）

	Similarities and differences in PM10 and PM2.5 concentrations, chemical compositions and sources in Hefei City, China
	Xue, HQ (Xue, Huaqin)1,2; Liu, GJ (Liu, Guijian)1,2; Zhang, H (Zhang, Hong)1,3; Hu, RY (Hu, Ruoyu)1; Wang, X (Wang, Xin)1
通讯作者	Liu, Guijian(lgi@mail.ustc.edu.cn)
	2019-04
发表期刊	CHEMOSPHERE
ISSN	0045-6535
卷号	220 页码:760-765
产权排序	2
摘要	Atmospheric particulates were sampled in Hefei City, China from October 2016 to January 2017 to compare chemical compositions and sources of PM2.5 (particle size smaller than 2.5 mu m) and PM10 (particle size smaller than 10 pm). The mean levels of PM2.5 and PM10 were 81 and 109 mu g/m(3), which are higher than the health threshold levels regulated by national and international standards. During the sampling period, AQI (Air Quality Index) was strongly correlated with PM2.5 (Pearson's coefficient r = 0.94) rather than PM10, concentrations. The PM2.5/PM10 ratios were approximately 0.7, revealing the characteristics of fine particle pollution. Pollution elements (S, Zn, Cu and Pb) took up a large proportion of the composition and had high enrichment factors of 437, 385, 20 and 53, respectively, in PM10. Coal combustion and high-tech manufacture industry discharges were suggested to be the main pollution sources of both PM2.5 and PM10. The PM2.5/PM10 ratios of anthropogenic element concentrations were much higher than ratios of earth crust element. As compared to PM10, S and Pb in PM2.5 had larger EFs, indicating that pollution elements were predominantly enriched in PM2.5. Furthermore, a paired sample t-test confirmed similar sources of PM2.5 and PM10. Our study provides basic database to evaluate the heavy metal pollution status of atmospheric particulates in Chinese cities.
关键词	Elemental composition PM2.5 PM10 Sources
DOI	10.1016/j.chemosphere.2018.12.123
关键词[WOS]	PARTICULATE MATTER ; SOURCE APPORTIONMENT ; AIR-POLLUTION ; URBAN SITE ; ELEMENTAL COMPOSITIONS ; ENRICHMENT FACTORS ; AMBIENT AIR ; MORTALITY ; QUALITY ; IDENTIFICATION
收录类别	SCI ; SCIE
语种	英语
资助项目	National Natural Science Foundation of China[41173032]
WOS研究方向	Environmental Sciences & Ecology
项目资助者	National Natural Science Foundation of China
WOS类目	Environmental Sciences
WOS记录号	WOS:000458591200084
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计	被引频次：51[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ieecas.cn/handle/361006/10935
专题	黄土与第四纪地质国家重点实验室（2010~）
通讯作者	Liu, GJ (Liu, Guijian)
作者单位	1.CAS Key Laboratory of Crust-Mantle Materials and Environment, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, Anhui 230026, China 2.State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, The Chinese Academy of Sciences, Xi'an, Shanxi 710075, China 3.Anhui Environment Science Institute, Hefei, Anhui 233000, China
第一作者单位	黄土与第四纪地质国家重点实验室（1985-2004）
通讯作者单位	黄土与第四纪地质国家重点实验室（1985-2004）
推荐引用方式 GB/T 7714	Xue, HQ ,Liu, GJ ,Zhang, H ,et al. Similarities and differences in PM10 and PM2.5 concentrations, chemical compositions and sources in Hefei City, China[J]. CHEMOSPHERE,2019,220:760-765.
APA	Xue, HQ ,Liu, GJ ,Zhang, H ,Hu, RY ,&Wang, X .(2019).Similarities and differences in PM10 and PM2.5 concentrations, chemical compositions and sources in Hefei City, China.CHEMOSPHERE,220,760-765.
MLA	Xue, HQ ,et al."Similarities and differences in PM10 and PM2.5 concentrations, chemical compositions and sources in Hefei City, China".CHEMOSPHERE 220(2019):760-765.

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