气候变化领域集成服务门户(CCPortal): Spatio-temporal characteristics of air pollutants over Xinjiang, northwestern China

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DOI	10.1016/j.envpol.2020.115907
	Spatio-temporal characteristics of air pollutants over Xinjiang, northwestern China
	Rupakheti, Dipesh; Yin, Xiufeng; Rupakheti, Maheswar; Zhang, Qianggong; Li, Ping; Rai, Mukesh; Kang, Shichang
通讯作者	Yin, XF (通讯作者)，Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryospher Sci, Lanzhou 730000, Peoples R China.
发表日期	2021
ISSN	0269-7491
EISSN	1873-6424
卷号	268
英文摘要	To understand the characteristics of particulate matter (PM) and other air pollutants in Xinjiang, a region with one of the largest sand-shifting deserts in the world and significant natural dust emissions, the concentrations of six air pollutants monitored in 16 cities were analyzed for the period January 2013-June 2019. The annual mean PM2.5, PM10, SO2, NO2, CO, and O-3 concentrations ranged from 51.44 to 59.54 mu g m(-3), 128.43-155.28 mu g m(-3), 10.99-17.99 mu g m(-3), 26.27-31.71 mu g m(-3), 1.04-1.32 mg m(-3), and 55.27-65.26 mu g m(-3), respectively. The highest PM concentrations were recorded in cities surrounding the Taklimakan Desert during the spring season and caused by higher amounts of wind-blown dust from the desert. Coarse PM (PM10-2.5) was predominant, particularly during the spring and summer seasons. The highest PM2.5/PM10 ratio was recorded in most cities during the winter months, indicating the influence of anthropogenic emissions in winters. The annual mean PM2.5 (PM10) concentrations in the study area exceeded the annual mean guidelines recommended by the World Health Organization (WHO) by a factor of ca. similar to 5-6 (similar to 7-8). Very high ambient PM concentrations were recorded during March 19-22, 2019, that gradually influenced the air quality across four different cities, with daily mean PM2.5 (PM10) concentrations similar to 8-54 (similar to 26-115) times higher than the WHO guidelines for daily mean concentrations, and the daily mean coarse PM concentration reaching 4.4 mg m(-3). Such high PM2.5 and concentrations pose a significant risk to public health. These findings call for the formulation of various policies and action plans, including controlling the land degradation and desertification and reducing the concentrations of PM and other air pollutants in the region. (C) 2020 Elsevier Ltd. All rights reserved.
关键词	PROVINCIAL CAPITAL CITIES TEMPORAL VARIATIONS PARTICULATE POLLUTANTS POLLUTION CRITERIA EMISSIONS MATTER BASIN
英文关键词	Air pollution; Spatio-temporal variations; PM2.5/PM10 ratio; Coarse-mode PM; Xinjiang; Northwestern China
语种	英语
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Sciences
WOS记录号	WOS:000600553000108
来源期刊	ENVIRONMENTAL POLLUTION
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/253924
作者单位	[Rupakheti, Dipesh; Yin, Xiufeng; Li, Ping; Rai, Mukesh; Kang, Shichang] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryospher Sci, Lanzhou 730000, Peoples R China; [Zhang, Qianggong; Kang, Shichang] CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China; [Yin, Xiufeng; Zhang, Qianggong] Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface P, Beijing 100101, Peoples R China; [Yin, Xiufeng; Li, Ping; Rai, Mukesh; Kang, Shichang] Univ Chinese Acad Sci, Beijing 100049, Peoples R China; [Rupakheti, Maheswar] Inst Adv Sustainabil Studies, Potsdam, Germany
推荐引用方式 GB/T 7714	Rupakheti, Dipesh,Yin, Xiufeng,Rupakheti, Maheswar,et al. Spatio-temporal characteristics of air pollutants over Xinjiang, northwestern China[J]. 中国科学院西北生态环境资源研究院,2021,268.
APA	Rupakheti, Dipesh.,Yin, Xiufeng.,Rupakheti, Maheswar.,Zhang, Qianggong.,Li, Ping.,...&Kang, Shichang.(2021).Spatio-temporal characteristics of air pollutants over Xinjiang, northwestern China.ENVIRONMENTAL POLLUTION,268.
MLA	Rupakheti, Dipesh,et al."Spatio-temporal characteristics of air pollutants over Xinjiang, northwestern China".ENVIRONMENTAL POLLUTION 268(2021).