DOI: 10.1016/j.atmosenv.2015.08.056
Scopus记录号: 2-s2.0-84941278168
论文题名: Spatial and seasonal atmospheric PAH deposition patterns and sources in Rhode Island
作者: Schifman L ; A ; , Boving T ; B
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2015
卷: 120 起始页码: 253
结束页码: 261
语种: 英语
英文关键词: Contaminant index
; Diffuse pollution
; Passive bulk sampling
; PMF analysis
; Polycyclic aromatic hydrocarbons
; Source attribution
Scopus关键词: Aromatic compounds
; Aromatic hydrocarbons
; Atmospheric movements
; Combustion
; Deposition
; Deposition rates
; Diesel fuels
; Factorization
; Hydrocarbons
; Isomers
; Atmospheric bulk deposition
; Bulk sampling
; Diffuse pollution
; PMF analysis
; Polycyclic aromatic hydrocarbon (PAH)
; Positive Matrix Factorization
; Source attribution
; Source identification
; Polycyclic aromatic hydrocarbons
; polycyclic aromatic hydrocarbon
; atmospheric deposition
; coastal zone
; combustion
; diesel
; multivariate analysis
; PAH
; pollutant source
; pollutant transport
; rural area
; spatial analysis
; urban area
; wood
; air pollution
; Article
; atmospheric deposition
; combustion
; isomer
; priority journal
; rural area
; spring
; summer
; United States
; urban area
; Rhode Island
; United States
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: Polycyclic aromatic hydrocarbons (PAH) enter the environment through various combustion processes and can travel long distances via atmospheric transport. Here, atmospheric PAH deposition was measured in six locations throughout Rhode Island using passive atmospheric bulk-deposition samplers for three years. The measurements were evaluated using two source-specific PAH isomer signatures, a multivariate receptor model, and an innovative contamination index that is weighted based on PAH contamination, number of detected compounds, and toxicity. Urban areas had significantly higher deposition rates (up to 2261 μg m-2 yr-1 ∑PAH) compared to peri-urban, coastal, and rural areas (as low as 73.6 μg m-2 yr-1 ∑PAH). In fall and winter, PAH deposition was up to 10 times higher compared to summer/spring. On an annual basis a total of 3.64 t yr-1 ∑PAH (2256.9 μg yr-1 m-2 ∑PAH) are estimated to be deposited atmospherically onto Rhode Island. Both, the analysis using isomer ratios and the statistical analysis using positive matrix factorization agreed on source identification. Overall gasoline, petrodiesel, and oil combustion sources were identified in all samples year-round while wood combustion associated PAH deposition was only detected during the cold season. © 2015 Elsevier Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81472
Appears in Collections: 气候变化事实与影响
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作者单位: Department of Geosciences, University of Rhode Island, Kingston, RI, United States; Department of Civil and Environmental Engineering, University of Rhode Island, Kingston, RI, United States
Recommended Citation:
Schifman L,A,, Boving T,et al. Spatial and seasonal atmospheric PAH deposition patterns and sources in Rhode Island[J]. Atmospheric Environment,2015-01-01,120