Exploring the cause of PM2.5 pollution episodes in a cold metropolis in China

doi:10.1016/j.jclepro.2020.120275

YIC-IR > 中国科学院海岸带环境过程与生态修复重点实验室 > 海岸带环境过程实验室

	Exploring the cause of PM2.5 pollution episodes in a cold metropolis in China
	Sun, Xiazhong ; Wang, Kun ; Li, Bo ; Zong, Zheng ; Shi, Xiaofei ; Ma, Lixin ; Fu, Donglei ; Thapa, Samit ; Qi, Hong ; Tian, Chongguo
发表期刊	JOURNAL OF CLEANER PRODUCTION
ISSN	0959-6526
	2020-05-20
卷号	256 页码:120275
关键词	TIANJIN-HEBEI REGION SOURCE APPORTIONMENT AIR-POLLUTION HAZE POLLUTION CHEMICAL-CHARACTERIZATION TRACE-METALS WINTER HAZE AEROSOL CHEMISTRY EVOLUTION
研究领域	Green & Sustainable Science & Technology ; Engineering, Environmental ; Environmental Sciences
DOI	10.1016/j.jclepro.2020.120275
产权排序	[Sun, Xiazhong; Wang, Kun; Li, Bo; Shi, Xiaofei; Ma, Lixin; Fu, Donglei; Thapa, Samit; Qi, Hong] Harbin Inst Technol, Key Lab Urban Water Resource & Environm, Harbin 150090, Peoples R China; [Sun, Xiazhong; Wang, Kun; Li, Bo; Shi, Xiaofei; Ma, Lixin; Fu, Donglei; Thapa, Samit; Qi, Hong] Harbin Inst Technol, Sch Environm, Harbin 150090, Peoples R China; [Zong, Zheng] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China; [Shi, Xiaofei; Tian, Chongguo] CASIC Intelligence Ind Dev Co Ltd, Beijing 100854, Peoples R China
通讯作者	Qi, Hong(hongqi@hit.edu.cn) ; Tian, Chongguo(cgtian@yic.ac.cn)
作者部门	海岸带环境过程实验室
英文摘要	Harbin, a cold metropolis of China, frequently endures fine particles (PM2.5) pollution during its long heating seasons, which has almost become the main environmental issue. To better understand pollution causes, multifaceted factors including the meteorology conditions, secondary transformation, source apportionment and regional transportation, were analyzed based on the definition of three pollution levels and eight pollution episodes. The results showed that chemical species varied dynamically and followed similar trends to PM2.5, and secondary organic carbon and nitrate played more significant driving roles in PM2.5 as the pollution level increased. Five sources were apportioned using the positive matrix factorization model, and the order of importance for the entire study period was as follows: secondary aerosol, traffic emissions, biomass burning, mineral dust, and coal combustion. The PM2.5 in Harbin is mainly affected by transportation in the Harbin-Changchun megalopolis and slightly affected by long-distance transmission from the northwestern region of Harbin. A pollution episode in the fall was quite significant, as it was characterized by long duration time and extremely high pollutant levels, and was most likely attributed to extensive emissions from biomass burning and enhanced secondary transformation. The pollution episodes in winter were characterized by enhanced heterogeneous reactions and weakened photochemical reactions, which were especially sensitive to synoptic variations, and most likely induced by high relative humidity (>60%), low wind speed (3 m/s), suppressed planetary boundary layer height (<200 m), and strengthened inversion layer under the control of high-pressure systems. Meanwhile, the episodes in spring were characterized by high proportions of mineral dust, chlorine, and potassium, which was mostly attributed to the prevailing dust events, stronger biomass burning activities, and favorable transportation under low-pressure systems. (C) 2020 Published by Elsevier Ltd.
文章类型	Article
资助机构	National Science Foundation of ChinaNational Natural Science Foundation of China [51979066] ; State Key Laboratory of Urban Water Resource and Environment Funding, Harbin Institute of Technology [2018TS01]
收录类别	SCI
语种	英语
关键词[WOS]	TIANJIN-HEBEI REGION ; SOURCE APPORTIONMENT ; AIR-POLLUTION ; HAZE POLLUTION ; CHEMICAL-CHARACTERIZATION ; TRACE-METALS ; WINTER HAZE ; AEROSOL ; CHEMISTRY ; EVOLUTION
研究领域[WOS]	Science & Technology - Other Topics ; Engineering ; Environmental Sciences & Ecology
WOS记录号	WOS:000524981300083
引用统计	被引频次：20[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.yic.ac.cn/handle/133337/25027
专题	中国科学院海岸带环境过程与生态修复重点实验室_海岸带环境过程实验室中国科学院海岸带环境过程与生态修复重点实验室
作者单位	1.Harbin Inst Technol, Key Lab Urban Water Resource & Environm, Harbin 150090, Peoples R China; 2.Harbin Inst Technol, Sch Environm, Harbin 150090, Peoples R China; 3.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China; 4.CASIC Intelligence Ind Dev Co Ltd, Beijing 100854, Peoples R China
推荐引用方式 GB/T 7714	Sun, Xiazhong,Wang, Kun,Li, Bo,et al. Exploring the cause of PM2.5 pollution episodes in a cold metropolis in China[J]. JOURNAL OF CLEANER PRODUCTION,2020,256:120275.
APA	Sun, Xiazhong.,Wang, Kun.,Li, Bo.,Zong, Zheng.,Shi, Xiaofei.,...&Tian, Chongguo.(2020).Exploring the cause of PM2.5 pollution episodes in a cold metropolis in China.JOURNAL OF CLEANER PRODUCTION,256,120275.
MLA	Sun, Xiazhong,et al."Exploring the cause of PM2.5 pollution episodes in a cold metropolis in China".JOURNAL OF CLEANER PRODUCTION 256(2020):120275.

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