气候变化领域集成服务门户(CCPortal): Chemical nature and predominant sources of PM10 and PM2.5 from multiple sites on the Silk Road, Northwest China

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DOI	10.1016/j.apr.2020.10.001
	Chemical nature and predominant sources of PM10 and PM2.5 from multiple sites on the Silk Road, Northwest China
	Zhou, Xi; Li, Zhongqin; Zhang, Tinjun; Wang, Feiteng; Tao, Yan; Zhang, Xin; Wang, Fanglong; Huang, Ju; Cheng, Taotao; Jiang, Huimin; Zheng, Cunying; Liu, Feng
通讯作者	Li, ZQ (通讯作者)，Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryospher Sci, Tianshan Glaciol Stn, Lanzhou 730000, Peoples R China.
发表日期	2021
ISSN	1309-1042
起始页码	425
结束页码	436
卷号	12 期号:1
英文摘要	We analyzed particulate matter (PM10 and PM2.5) from 4 urban sites (Wuwei, Zhangye, Jiuquan and Dunhuang) located on the Silk Road of Northwest China in summer and winter of 2018 for water-soluble ions, carbonaceous aerosols and heavy metals. The focus was to examine patterns in mass concentration, chemical nature and predominant sources. The average concentrations of PM10 and PM2.5 in this region were in the range of 112-152 mu g/m(3) and 70-81 mu g/m(3), respectively, and water-soluble inorganic ions (WSIIs) and mineral dust were the two main species of PM. PM10 and PM2.5 showed a relatively homogeneous spatial distribution in this area. The ratios of chemical composition and the enrichment factors of heavy metals were also analyzed. Four sources were identified by the positive matrix factorization (PMF) model. Dust and secondary inorganic aerosols were the dominant PM10 and PM2.5 contributors, respectively, accounting for 32.2% for PM10 and 34.7% for PM2.5. The contribution of dust and factory combustion emission sources to PM2.5 in this region was higher than that in the North, East and South regions of China, while that of secondary inorganic aerosol sources was relatively lower than in these other areas. The backward-trajectory model revealed that high PM pollution was related to the air masses from adjacent polluted regions in Inner Mongolia and was characterized by high PM contributions from secondary aerosols.
关键词	YANGTZE-RIVER DELTA SECONDARY INORGANIC AEROSOL ATMOSPHERIC DUST DEPOSITION DIFFERENT FUNCTIONAL AREAS REGIONAL BACKGROUND SITE FINE PARTICULATE MATTER TIANJIN-HEBEI REGION WATER-SOLUBLE IONS SOURCE APPORTIONMENT CARBONACEOUS AEROSOLS
英文关键词	PM10; PM2.5; Northwest China; Chemical composition; Source apportionment
语种	英语
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Sciences
WOS记录号	WOS:000618694900004
来源期刊	ATMOSPHERIC POLLUTION RESEARCH
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/253979
作者单位	[Zhou, Xi; Zhang, Tinjun; Tao, Yan; Huang, Ju] Lanzhou Univ, Coll Earth & Environm Sci, Minist Educ, Key Lab Western Chinas Environm Syst, Lanzhou 730000, Peoples R China; [Zhou, Xi; Li, Zhongqin; Wang, Feiteng; Zhang, Xin; Wang, Fanglong; Zheng, Cunying] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryospher Sci, Tianshan Glaciol Stn, Lanzhou 730000, Peoples R China; [Li, Zhongqin; Cheng, Taotao; Jiang, Huimin; Liu, Feng] Northwest Normal Univ, Coll Geog & Environm Sci, Lanzhou 730000, Peoples R China; [Li, Zhongqin] Shihezi Univ, Coll Sci, Shihezi 832000, Xinjiang, Peoples R China; [Zhang, Tinjun] Univ Corp Polar Res, Beijing 100875, Peoples R China
推荐引用方式 GB/T 7714	Zhou, Xi,Li, Zhongqin,Zhang, Tinjun,et al. Chemical nature and predominant sources of PM10 and PM2.5 from multiple sites on the Silk Road, Northwest China[J]. 中国科学院西北生态环境资源研究院,2021,12(1).
APA	Zhou, Xi.,Li, Zhongqin.,Zhang, Tinjun.,Wang, Feiteng.,Tao, Yan.,...&Liu, Feng.(2021).Chemical nature and predominant sources of PM10 and PM2.5 from multiple sites on the Silk Road, Northwest China.ATMOSPHERIC POLLUTION RESEARCH,12(1).
MLA	Zhou, Xi,et al."Chemical nature and predominant sources of PM10 and PM2.5 from multiple sites on the Silk Road, Northwest China".ATMOSPHERIC POLLUTION RESEARCH 12.1(2021).