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题名: Concentrations and inhalation risk assessment of short-chain polychlorinated paraffins in the urban air of Dalian, China
作者: Zhu, Xiuhua1;  Bai, Hao1;  Gao, Yuan2;  Chen, Jiping2;  Yuan, Heping2;  Wang, Longxing2;  Wang, Wei1;  Dong, Xuewei1;  Li, Xiaoxiao3
关键词: Urban air ;  Short-chain polychlorinated paraffins ;  Correlation analysis ;  Gas-particulate partitioning ;  Exposure risk ;  Dalian
刊名: ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
发表日期: 2017-09-01
DOI: 10.1007/s11356-017-9775-x
卷: 24, 期:26, 页:21203-21212
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Life Sciences & Biomedicine
类目[WOS]: Environmental Sciences
研究领域[WOS]: Environmental Sciences & Ecology
英文摘要: The concentrations of short-chain polychlorinated paraffins (SCCPs) in the urban air of Dalian, China, were monitored from March to October 2010 and from September to October 2016 with active high-volume sampler. The total concentration of SCCPs (particulate phase + gas phase) ranged from 15.12 to 66.44 ng m(-3), with an average of 30.26 ng m(-3) in 2010, and 65.30 to 91.00 ng m(-3), with an average of 78.15 ng m(-3) in 2016. Hexa-chlorinated dodecane and hexa-chlorinated undecane are the predominant components in the gas phase, while octa-chlorinated undecane and hepta-chlorinated tridecane are dominant in the particulate phase. In 2010, 82.57-97.16% of the total SCCPs were found in the gas phase, except that in winter, where 63.11% of the total SCCPs were in the particulate phase; the air concentrations of SCCPs in gas phase were summer > autumn > spring > winter, which was positively correlated with the change of the average ambient temperature, while it was the contrary in particulate phase. In autumn, the gas phase and the total air concentration of SCCPs in 2016 were 2.57 times more than that in 2010, while the congener group patterns of SCCPs were similar. Spearman's rank correlation analysis between the concentrations of SCCPs with meteorological parameters was conducted. The gas-particle distribution was examined through the relationship of the logarithm of the gas-particle partition coefficient with that of the subcooled vapor pressure and the octanol-air partitioning coefficient of SCCPs. Results indicated that the absorption mechanisms contributed more to the partitioning process. The exposure risk of SCCPs was evaluated, which illustrated that the estimated exposure of SCCPs via the outdoor environment in Dalian did not exceed the health concern threshold of the European risk assessment.
关键词[WOS]: CHLORINATED PARAFFINS ;  PARTITION-COEFFICIENT ;  ORGANIC-COMPOUNDS ;  BOHAI SEA ;  N-ALKANES ;  ATMOSPHERE ;  BIOACCUMULATION ;  ENVIRONMENT ;  EMISSIONS ;  SEDIMENTS
语种: 英语
WOS记录号: WOS:000409040700033
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/149908
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Dalian Jiaotong Univ, Sch Environm & Chem Engn, Dalian 116028, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
3.Dalian Meteorol Observ, Dalian 116001, Peoples R China

Recommended Citation:
Zhu, Xiuhua,Bai, Hao,Gao, Yuan,et al. Concentrations and inhalation risk assessment of short-chain polychlorinated paraffins in the urban air of Dalian, China[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,2017,24(26):21203-21212.
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