East Asia monsoon's influence on seasonal changes of beryllium-7 and;typical POPs in near-surface atmospheric aerosols in mid-latitude city;Qingdao, China

doi:10.1016/j.atmosenv.2013.07.021

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	East Asia monsoon's influence on seasonal changes of beryllium-7 and;typical POPs in near-surface atmospheric aerosols in mid-latitude city;Qingdao, China
	Yang, Yong-Liang 9; Gai, Nan ; Geng, Cun-Zhen ; Zhu, Xiao-Hua ; Li, Yong ; Xue, Yuan 5; Yu, Han-Qing ; Tan, Ke-Yan
刊名	ATMOSPHERIC ENVIRONMENT
	2013
卷号	79 页码:802-810
关键词	Beryllium-7 Aerosol Persistent organic pollutants Qingdao East Asia monsoon
ISSN号	1352-2310;EI 1873-2844
DOI	10.1016/j.atmosenv.2013.07.021
英文摘要	Near-surface atmospheric aerosols were collected at sampling frequency of 3 d per week for one year from August 2009 to July 2010 in Laoshan District, Qingdao, located in the mid-latitude coastal region of East Asia monsoon region. The samples were analyzed for cosmogenic nuclide beryllium-7 (Be-7), organochlorine pesticides (OCPs), and polychlorinated biphenyls (PCBs). The annual average 7Be concentration was 6.83 +/- 0.40 mBq m(-3), with the variation range from 1.52 to 14.58 mBq m(-3). The maximum and minimum levels were observed in September and May, respectively. Autumn and spring were the seasons with high Be-7 concentrations and summer was the lowest Be-7 season. Enhanced wet precipitation may have caused lower Be-7 observed in summer when southeasterlies were prevailing. Higher Be-7 concentrations in autumn 2009 were caused by the abnormal atmospheric circulation. Concentrations of HCHs, DDTs, and PCBs followed a trend of being lower in summer and higher in winter. Higher chlorinated PCB isomers were predominant in winter and lower chlorinated PCB isomers were predominant in summer. Sigma OCPs generally showed positive correlations with Be-7 but were interrupted by the "spring leak maximum" episode for Be-7 in the atmosphere in April when the stratosphere-troposphere exchange was enhanced, and in December when abnormally high HCHs were observed. No significant correlation was found between Be-7 and PCBs except for PCB28. Seasonal oscillations in Be-7 and the ratios of POP/Be-7 were observed. (C) 2013 Elsevier Ltd. All rights reserved.
学科主题	环境地质学
WOS关键词	PERSISTENT ORGANIC POLLUTANTS ; GROUND LEVEL AIR ; POLYCHLORINATED-BIPHENYLS ; BE-7 CONCENTRATIONS ; PB-210 ; CONTAMINATION ; ATLANTIC ; ISOMERS ; CHICAGO ; TRENDS
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000325834700088
内容类型	期刊论文
源URL	[http://119.78.100.197/handle/2HKVOGP0/40055]
专题	中国地质科学院国家地质实验测试中心
作者单位	1.[Yang, Yong-Liang 2.Gai, Nan 3.Zhu, Xiao-Hua 4.Minist Land & Resources China, Natl Res Ctr Geoanal, Key Lab Ecogeochem, Beijing 100037, Peoples R China. 5.[Geng, Cun-Zhen 6.Qingdao Univ, Coll Chem & Environm Sci & Engn, Qingdao 266071, Peoples R China. 7.[Li, Yong 8.Chinese Acad Agr Sci, Beijing 100081, Peoples R China. 9.中国地质科学院国家地质实验测试中心
推荐引用方式 GB/T 7714	Yang, Yong-Liang,Gai, Nan,Geng, Cun-Zhen,et al. East Asia monsoon's influence on seasonal changes of beryllium-7 and;typical POPs in near-surface atmospheric aerosols in mid-latitude city;Qingdao, China[J]. ATMOSPHERIC ENVIRONMENT,2013,79:802-810.
APA	Yang, Yong-Liang.,Gai, Nan.,Geng, Cun-Zhen.,Zhu, Xiao-Hua.,Li, Yong.,...&Tan, Ke-Yan.(2013).East Asia monsoon's influence on seasonal changes of beryllium-7 and;typical POPs in near-surface atmospheric aerosols in mid-latitude city;Qingdao, China.ATMOSPHERIC ENVIRONMENT,79,802-810.
MLA	Yang, Yong-Liang,et al."East Asia monsoon's influence on seasonal changes of beryllium-7 and;typical POPs in near-surface atmospheric aerosols in mid-latitude city;Qingdao, China".ATMOSPHERIC ENVIRONMENT 79(2013):802-810.