Temporal variations, sources and tracer significance of Polonium-210 in the metropolitan atmosphere of Beijing, China

doi:10.1016/j.atmosenv.2018.09.005

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	Temporal variations, sources and tracer significance of Polonium-210 in the metropolitan atmosphere of Beijing, China
	Xu DD(徐殿斗); Ouyang, Jie; Luo, Min; Song, Li-Juan; Ma, Ling-Ling; Yang, Guo-Sheng; Dai, Xiong-Xin; Shao, Yang; Xu, Dian-Dou; Luo, Mao-Yi
刊名	ATMOSPHERIC ENVIRONMENT
	2018
卷号	193 页码:214-223
关键词	Radioactive Po-210 Stable element selenium Source identification Emission factor Emission inventory
ISSN号	1352-2310
DOI	10.1016/j.atmosenv.2018.09.005
文献子类	Article
英文摘要	In the present study, Polonium-210 (Po-210) is studied in TSP and coal combustion samples for its potential application in tracing air pollutants. A significant seasonal variation of atmospheric Po-210 in Beijing was observed: winter > autumn > summer > spring. During the combustion of coal, Po-210 was highly enriched in fly ash but was depleted in bottom ash. Using selenium (Se) as an indicator of coal combustion, significantly positive correlation between Po-210 and Se in TSP samples (r(2) = 0.705) revealed that coal combustion was a primary source of atmospheric Po-210 in Beijing. The mean emission factor of Po-210 from industry sector was found to be the highest (1.15 Bq kg(-1)), followed by the residential (0.308 Bq kg(-1)) and coal-fired power plant (0.0776 Bq kg(-1)) sectors. The annual emission inventories of Po-210 from three coal consumer sectors (residential, coal-fired power plant, and industry) in 2016 in Beijing were estimated to be 1.49, 0.0729, and 1.36 GBq, respectively. The ratio of radioactive Po-210 and stable element Se (Po-210/Se) was creatively used as a combined indicator or fingerprint of coal combustion emission, which will contribute to the development of radioisotope tracer technology based on nuclide fingerprint database in the source identification of air pollutants.
电子版国际标准刊号	1873-2844
WOS关键词	COAL COMBUSTION ; URBAN ATMOSPHERE ; AIR ; EMISSIONS ; PB-210 ; SPECIATION ; PARTICLES ; POLLUTION ; IMPACT ; RADON
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
语种	英语
WOS记录号	WOS:000448091600022
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/286604]
专题	高能物理研究所_核技术应用研究中心高能物理研究所_多学科研究中心
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Xu DD,Ouyang, Jie,Luo, Min,et al. Temporal variations, sources and tracer significance of Polonium-210 in the metropolitan atmosphere of Beijing, China[J]. ATMOSPHERIC ENVIRONMENT,2018,193:214-223.
APA	徐殿斗.,Ouyang, Jie.,Luo, Min.,Song, Li-Juan.,Ma, Ling-Ling.,...&邵阳.(2018).Temporal variations, sources and tracer significance of Polonium-210 in the metropolitan atmosphere of Beijing, China.ATMOSPHERIC ENVIRONMENT,193,214-223.
MLA	徐殿斗,et al."Temporal variations, sources and tracer significance of Polonium-210 in the metropolitan atmosphere of Beijing, China".ATMOSPHERIC ENVIRONMENT 193(2018):214-223.