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Levels, sources and health risks of carbonyls and BTEX in the ambient air of Beijing, China
Zhang, Yujie; Mu, Yujing; Liu, Junfeng; Mellouki, Abdelwahid
2012
Source PublicationJOURNAL OF ENVIRONMENTAL SCIENCES-CHINA
ISSN1001-0742
Volume24Issue:1Pages:124-130
AbstractThe atmospheric concentrations of carbonyls and BTEX (benzene, toluene, ethylbenzene, m,p-xylene and o-xylene) were measured simultaneously at a same sampling site in Beijing from September 2008 to August 2010. The average concentrations of the total measured carbonyls during autumn, winter, spring, and summer were 37.7, 31.3, 39.7, 50.5 mu g/m(3), respectively, and maximal values for their diurnal variations usually happened at noontime. In contrast to carbonyls, the average concentrations of the total measured BTEX during the four seasons were 27.2, 31.9, 23.2, 19.1 mu g/m(3), respectively, and minimal values for their diurnal variations always occurred in the early afternoon. The average concentration for carbonyls increased about 24% from September 2008-August 2009 to September 2009 August 2010, for BTEX, increased about 15%. Integrated life time cancer risks for three carcinogens (benzene, formaldehyde and acetaldehyde) in Beijing exceeded the value of 1E-06, and the hazard quotient (HQ) of non-cancer risk of exposure to formaldehyde exceeded unity.
Department大气环境研究室
KeywordCarbonyls Btex Sources Exposure And Risk Assessment Beijing
WOS IDWOS:000299658200015
Citation statistics
Cited Times:109[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.rcees.ac.cn/handle/311016/7954
Collection大气环境科学实验室
Recommended Citation
GB/T 7714
Zhang, Yujie,Mu, Yujing,Liu, Junfeng,et al. Levels, sources and health risks of carbonyls and BTEX in the ambient air of Beijing, China[J]. JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,2012,24(1):124-130.
APA Zhang, Yujie,Mu, Yujing,Liu, Junfeng,&Mellouki, Abdelwahid.(2012).Levels, sources and health risks of carbonyls and BTEX in the ambient air of Beijing, China.JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,24(1),124-130.
MLA Zhang, Yujie,et al."Levels, sources and health risks of carbonyls and BTEX in the ambient air of Beijing, China".JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA 24.1(2012):124-130.
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