DOI: 10.1016/j.atmosenv.2019.117219
论文题名: Characteristics of halogenated flame retardants in the atmosphere of Dalian, China
作者: Wang Y. ; Zhang Y. ; Tan F. ; Yang Y. ; Qu Z. ; Kvasnicka J. ; Chen J.
刊名: Atmospheric Environment
ISSN: 1352-2310
出版年: 2020
卷: 223 语种: 英语
英文关键词: Air
; Combustion
; Flame retardants
; Organic pollutants
; Annual average concentration
; Brominated flame retardants
; Fine particulate matter (PM2.5)
; Halogenated flame retardant
; Meteorological condition
; Meteorological parameters
; PM2.5
; Polybrominated diphenyl ether (PBDEs)
; Gases
; 2,2',4,4' tetrabromodiphenyl ether
; 2,2',4,4',5,5' hexabromodiphenyl ether
; decabromodiphenyl ether
; flame retardant
; polybrominated diphenyl ether
; ambient air
; coastal zone
; combustion
; concentration (composition)
; flame retardant
; gas
; halogenated hydrocarbon
; meteorology
; particulate matter
; partitioning
; PBDE
; urban atmosphere
; urban pollution
; air pollutant
; air pollution
; air temperature
; ambient air
; atmosphere
; China
; combustion
; concentration (parameter)
; gas
; halogenation
; particulate matter
; priority journal
; seasonal variation
; China
; Dalian
; Liaoning
学科: Air
; Brominated flame retardants
; Gas-PM2.5 partitioning
; Meteorological conditions
; PM2.5
中文摘要: Samples of gas and fine particulate matter (PM2.5) were collected in Dalian, China, a typical coastal city, to determine the concentrations, seasonal variations, influential factors, sources, and gas-PM2.5 partitioning of polybrominated diphenyl ethers (PBDEs), novel brominated flame retardants (NBFRs), and dechlorane plus (DPs) in the ambient air. Annual average concentrations of Σ7PBDEs, BDE209, Σ6NBFRs, and DPs were 4.40 ± 2.93, 1460 ± 2500, 7.81 ± 6.85, and 0.15 ± 0.14 pg/m3 for the gas phase, and 2.68 ± 1.64, 4291 ± 4306, 13.6 ± 23.4, and 0.31 ± 0.22 pg/m3 for the fine particle phase, respectively. BDE209 was the dominant congener, followed by HBB and BEH-TEBP, and seasonal variations in air concentrations were apparent for BFRs, especially those in the gas phase. Moreover, meteorological parameters and criteria air pollutants revealed significant positive correlations between temperature and less-brominated BFRs in the gas phase, and between PM2.5 and highly-brominated BFRs in the particle phase. This suggests that the presence of these compounds in ambient air may largely result from combustion-related processes. Furthermore, an analysis of the gas-PM2.5 partitioning of BFRs and DPs suggested that BFRs and DPs mostly attained equilibrium, except for some NBFRs. Due to the ban of commercial penta-, octa-, and deca-BDEs by the Stockholm Convention, emissions from historical use and combustion are becoming the important sources of PBDEs in China. © 2019 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/161015
Appears in Collections: 气候变化与战略
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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, 116024, China; Department of Earth Sciences, University of Toronto, Toronto, M5S 3B1, Canada
Recommended Citation:
Wang Y.,Zhang Y.,Tan F.,et al. Characteristics of halogenated flame retardants in the atmosphere of Dalian, China[J]. Atmospheric Environment,2020-01-01,223