DOI: 10.1016/j.atmosenv.2015.03.004
Scopus记录号: 2-s2.0-84924558272
论文题名: Seasonal variation of organochlorine pesticides in the gaseous phase and aerosols over the East China Sea
作者: Ji T ; , Lin T ; , Wang F ; , Li Y ; , Guo Z
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 109 起始页码: 31
结束页码: 41
语种: 英语
英文关键词: Aerosols
; East China Sea
; Gaseous phase
; OCP
; Seasonal variation
; Source
Scopus关键词: Aerosols
; Catchments
; Pesticides
; East China Sea
; Gaseous phase
; OCP
; Seasonal variation
; Source
; Principal component analysis
; 1,1 dichloro 2,2 bis(4 chlorophenyl)ethane
; 1,1 dichloro 2,2 bis(4 chlorophenyl)ethylene
; alpha hexachlorocyclohexane
; beta hexachlorocyclohexane
; chlordane
; chlorphenotane
; hexachlorocyclohexane
; lindane
; organochlorine pesticide
; aerosol
; coastal zone
; concentration (composition)
; HCH
; organochlorine pesticide
; partitioning
; principal component analysis
; seasonal variation
; volatilization
; aerosol
; air sampling
; Article
; China
; concentration (parameters)
; East Asian
; environmental temperature
; gas
; island (geological)
; marine environment
; particulate matter
; principal component analysis
; priority journal
; river
; sea
; seashore
; seasonal variation
; summer
; volatilization
; winter
; China
; East China Sea
; Pacific Ocean
; Yangtze River
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: Eighty paired gaseous phase and PM2.5 (particulate matter<2.5μm in diameter) samples, covering four seasons from October 2011 to August 2012 were collected simultaneously from a remote island in the East China Sea (ECS). The samples were analyzed for organochlorine pesticides (OCPs) to determine their seasonal variation and potential sources over the coastal marine environment. The concentrations of individual OCPs in the PM2.5 samples were higher in winter and lower in summer, and the reverse trend was observed for the measured OCP compounds (except hexachlorocyclohexanes, HCHs) in the gaseous phase. Principal component analysis revealed one trend that contributed 40% to PM2.5-bound OCPs characterized by β-HCH, α-HCH, p,. p'-dichlorodiphenyldichloroethane (p,. p'-DDD), p,. p'-dichlorodiphenyldichloroethylene (p,. p'-DDE), and chlordanes; whereas two seasonal trends, represented by dichlorodiphenyltrichloroethanes (DDTs) or chlordanes and HCHs, were responsible for 38% and 23% of the gaseous OCPs, respectively. Continental outflow driven by the East Asian monsoon brought large quantities of particulate OCPs to the ECS, especially in winter. Possible fresh sources or net volatilization from the Yangtze River induced by both higher ambient temperature and higher discharge rates caused the higher gaseous DDT and chlordane levels observed in summer. However, the lower concentrations of gaseous HCHs observed in summer suggested that net volatilization had a relatively limited impact on gaseous HCHs due to the long-term prohibition of their use and their low residual levels in the catchment, whereas the elevated concentrations of gaseous HCHs in winter controlled by gas-particle partitioning, resulted from increased particulate HCHs producing a partial shift to gaseous HCHs over ECS. © 2015 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81830
Appears in Collections: 气候变化事实与影响
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作者单位: Shanghai Key Laboratory of Atmospheric Particle Pollution Prevention, Center for Atmospheric Chemistry Study, Department of Environmental Science and Engineering, Fudan University, Shanghai, China; State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, China
Recommended Citation:
Ji T,, Lin T,, Wang F,et al. Seasonal variation of organochlorine pesticides in the gaseous phase and aerosols over the East China Sea[J]. Atmospheric Environment,2015-01-01,109