Evaluating the size distribution characteristics and sources of atmospheric trace elements at two mountain sites: comparison of the clean and polluted regions in China

doi:10.1088/1748-9326/ab9b41

CORC > 成都山地灾害与环境研究所 > 中国科学院水利部成都山地灾害与环境研究所

	Evaluating the size distribution characteristics and sources of atmospheric trace elements at two mountain sites: comparison of the clean and polluted regions in China
	Liu Zirui 1; Hu Bo 1; Yang Yongjie 2; Zhang Deqiang 3; Li Wei 4; Wen Tianxue 1; Xin Jinyuan 1; Wang Yuesi 1,5,6
刊名	ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
	2020
页码	84033
关键词	Trace elements Size distribution patterns Source regions PRD Tibetan Plateau region
ISSN号	0944-1344
DOI	10.1088/1748-9326/ab9b41
产权排序	4
文献子类	Article;Early Access
英文摘要	Size-resolved trace metal concentrations at two background sites were assessed during a 1-year observation campaign, with the measurements performed in parallel at two mountain sites, where Mt. Dinghu (DHS) located in the rural region of Pearl River Delta (PRD) and Mt. Gongga (GGS) located in the Tibetan Plateau region. In total, 15 selected trace elements (Mg, Al, K, V, Mn, Fe, Cu, Zn, As, Mo, Ag, Cd, Ba, Tl, and Pb) in aerosol samples were determined using inductively coupled plasma mass spectrometry (ICPMS). The major metals in these two mountain sites were Fe, K, Mg, and Ca with concentrations ranging between 241 and 1452 ng/m(3), 428 and 1351 ng/m(3), 334 and 875 ng/m(3), and 376 and 870 ng/m(3), respectively, while the trace metals with the lowest concentrations were Mo, Ag, Cd, and Tl with concentrations lower than 4 ng/m(3)in DHS and 2 ng/m(3)in GGS. The pronounced seasonal variability in the trace elements was observed in DHS, with lower concentrations in spring and summer and relatively high in winter and autumn, whereas seasonal variance of trace elements is hardly observed in Mt. Gongga. The size distribution pattern of crustal elements of Al, Mg, K, Ba, and Fe was quite similar in DHS and GGS, which were mainly found in coarse particles peaked at 4.7-5.8 mu m. In addition, V, Mo, Ag, and Tl were also concentrated in coarse particles, although the high enrichment factor (EF > 100) of which suggested anthropogenic origin, whereas trace metals of Cd, Mn, Zn, As, Cu, and Pb concentrated in fine mode particles. Specifically, these trace metals peak at approximately 1.5 mu m in DHS, while those in GGS peaked at diameter smaller than 0.3 mu m, indicating the responsible for long-range transport from the far urban and industrialized areas. Multivariate receptor model combined with the enrichment factor results demonstrated that the trace elemental components at these two background sites were largely contributed from the fossil fuel combustion (55.4% in DHS and 44.0% in GGS) and industrial emissions factors (20.1% vs. 26.5%), which are associated with long distance transport from the coastal area of Southeast China and the Northwestern India, respectively, as suggested by the backward air mass trajectory analysis. Local sources from soil dust contributed a minor variance for trace elements in DHS (9.7%) and GGS (13.8%), respectively.
电子版国际标准刊号	1748-9326
语种	英语
WOS记录号	WOS:000560434600001
内容类型	期刊论文
源URL	[http://ir.imde.ac.cn/handle/131551/35362]
专题	中国科学院水利部成都山地灾害与环境研究所
作者单位	1.Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Atmospher Boundary Layer Phys & Atm, Beijing 100191, Peoples R China; 2.Natl Res Ctr Environm Anal & Measurement, Beijing 100029, Peoples R China; 3.Chinese Acad Sci, South China Bot Garden, Guangzhou 510650, Peoples R China; 4.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China; 5.Chinese Acad Sci, Ctr Excellence Reg Atmospher Environm, Inst Urban Environm, Xiamen 361021, Peoples R China; 6.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Liu Zirui,Hu Bo,Yang Yongjie,et al. Evaluating the size distribution characteristics and sources of atmospheric trace elements at two mountain sites: comparison of the clean and polluted regions in China[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,2020:84033.
APA	Liu Zirui.,Hu Bo.,Yang Yongjie.,Zhang Deqiang.,Li Wei.,...&Wang Yuesi.(2020).Evaluating the size distribution characteristics and sources of atmospheric trace elements at two mountain sites: comparison of the clean and polluted regions in China.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,84033.
MLA	Liu Zirui,et al."Evaluating the size distribution characteristics and sources of atmospheric trace elements at two mountain sites: comparison of the clean and polluted regions in China".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH (2020):84033.