DOI: 10.1016/j.atmosenv.2015.04.047
Scopus记录号: 2-s2.0-84928320256
论文题名: Seasonal and diurnal variations of atmospheric PAHs and OCPs in a suburban paddy field, South China: Impacts of meteorological parameters and sources
作者: Wang Y ; , Li Q ; , Wang S ; , Wang Y ; , Luo C ; , Li J ; , Zhang G
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 112 起始页码: 208
结束页码: 215
语种: 英语
英文关键词: Diurnal variation
; OCPs
; Paddy field
; PAHs
; Seasonal variation
Scopus关键词: Aromatic hydrocarbons
; Atmospheric boundary layer
; Boundary layers
; Wind
; Diurnal variation
; OCPs
; Paddy fields
; PAHs
; Seasonal variation
; Polycyclic aromatic hydrocarbons
; chlorphenotane
; hexachlorocyclohexane
; organochlorine derivative
; agricultural emission
; biomonitoring
; boundary layer
; concentration (composition)
; DDT
; growth
; HCH
; meteorology
; paddy field
; PAH
; parameterization
; phosphate
; pollutant source
; pollution control
; rice
; suburban area
; temporal variation
; Article
; atmosphere
; China
; circadian rhythm
; exhaust gas
; growth curve
; isomer
; meteorological phenomena
; priority journal
; rice
; seasonal variation
; suburban area
; China
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: The atmospheric contaminations of polycyclic aromatic hydrocarbons (PAHs), hexachlorocyclohexanes (HCHs), and DDTs have been extensively monitored for decades, but contaminations in agricultural paddy fields have rarely been reported. We measured the atmospheric PAH, HCH, and DDT constituents during different rice growth stages in a suburban paddy field in South China. Diurnal variations were found in the atmospheric concentrations of PAHs and HCHs, but not for DDTs. Additional nocturnal emissions and meteorological conditions, such as low nocturnal stable atmospheric boundary layers, may be mainly responsible for the higher PAH and HCH levels at night, respectively. Atmospheric concentrations of PAH, HCH, and DDT constituents varied with rice growth stage, but no regular seasonal variation was found, suggesting that rice growth has no significant influence on the atmospheric concentrations of these chemicals. A correlation analysis suggested that meteorological parameters, such as temperature, precipitation, mixing layer height, or wind speed, may directly or indirectly affect the air concentrations of PAHs, HCHs, and DDTs. Source apportionment showed that atmospheric PAHs, HCHs, and DDTs in the paddy field originated from mixed sources, and the contribution of each source varied with time. The isomer ratio of fluoranthene/(fluoranthene+pyrene) may result in an invalid diagnosis of PAHs. © 2015 . Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81735
Appears in Collections: 气候变化事实与影响
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作者单位: Key Laboratory of Industrial Ecology and Environmental Engineering (MOE), School of Environmental Science and Technology, Dalian University of Technology, Dalian, China; State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, China; Key Laboratory for Yellow River and Huai River Water Environmental and Pollution Control, Ministry of Education, School of Environment, Henan Normal University, Xinxiang, China; School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou, China
Recommended Citation:
Wang Y,, Li Q,, Wang S,et al. Seasonal and diurnal variations of atmospheric PAHs and OCPs in a suburban paddy field, South China: Impacts of meteorological parameters and sources[J]. Atmospheric Environment,2015-01-01,112