气候变化领域集成服务门户(CCPortal): Temporal and spatial variations in atmospheric unintentional PCB emissionsin Chinese mainland from 1960 to 2019

CCPortal

DOI	10.5194/acp-23-1091-2023
	Temporal and spatial variations in atmospheric unintentional PCB emissionsin Chinese mainland from 1960 to 2019
	Li, Ye; Huang, Ye; Zhang, Yunshan; Du, Wei; Zhang, Shanshan; He, Tianhao; Li, Yan; Chen, Yan; Ding, Fangfang; Huang, Lin; Xia, Haibin; Meng, Wenjun; Liu, Min; Tao, Shu
发表日期	2023
ISSN	1680-7316
EISSN	1680-7324
起始页码	1091
结束页码	1101
卷号	23 期号:2 页码:11
英文摘要	Polychlorinated biphenyls (PCBs) are nowadays mainly unintentionally produced, since their use and manufacture has been banned. PCBs, especially those dioxin-like compounds, have been proven harmful to ecosystems and human health. Detailed information about the spatiotemporally distribution of unintentionally produced PCBs (UP-PCBs) is crucial for understanding the environmental fate and associated health risks. How-ever, research estimating UP-PCBs emission in China is limited. In this study, a source-specific and year-varying emission factor (EF) dataset was used to compile provincial emissions of 12 dioxin-like UP-PCBs congeners for 66 sources in the Chinese mainland from 1960 to 2019. In addition to that, emissions for 2019 were allocated into 0.1 degrees x 0.1 degrees grids. The results indicated that historical national UP-PCBs emission represented an increasing trend until around 1995 and then showed an overall decreasing trend from 1995 to 2019. Cement production was the largest UP-PCBs emission source in the Chinese mainland. Geographically, East and North China con-tributed the largest UP-PCBs emission across the Chinese mainland. High emission densities occurred mainly in the densely populated and well-developed regions such as Yangtze River Delta Urban Agglomeration and Pearl River Delta. Furthermore, highly positive correlations of emission densities with population and GDP densities were identified.
学科领域	Environmental Sciences; Meteorology & Atmospheric Sciences
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000921383400001
来源期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/273216
作者单位	East China Normal University; Peking University; Nanjing Forestry University; Kunming University of Science & Technology
推荐引用方式 GB/T 7714	Li, Ye,Huang, Ye,Zhang, Yunshan,et al. Temporal and spatial variations in atmospheric unintentional PCB emissionsin Chinese mainland from 1960 to 2019[J],2023,23(2):11.
APA	Li, Ye.,Huang, Ye.,Zhang, Yunshan.,Du, Wei.,Zhang, Shanshan.,...&Tao, Shu.(2023).Temporal and spatial variations in atmospheric unintentional PCB emissionsin Chinese mainland from 1960 to 2019.ATMOSPHERIC CHEMISTRY AND PHYSICS,23(2),11.
MLA	Li, Ye,et al."Temporal and spatial variations in atmospheric unintentional PCB emissionsin Chinese mainland from 1960 to 2019".ATMOSPHERIC CHEMISTRY AND PHYSICS 23.2(2023):11.