A passive air sampler for characterizing the vertical concentration profile of gaseous phase polycyclic aromatic hydrocarbons in near soil surface air | |
Zhang, Yuzhong ; Deng, Shuxing ; Liu, Yanan ; Shen, Guofeng ; Li, Xiqing ; Cao, Jun ; Wang, Xilong ; Reid, Brian ; Tao, Shu | |
刊名 | environmental pollution |
2011 | |
关键词 | Passive sampler PAHs Semi-volatile organics Vertical concentration profile PERSISTENT ORGANIC POLLUTANTS DYNAMIC FLUX CHAMBER ORGANOCHLORINE PESTICIDES ENVIRONMENTAL-ANALYSIS POLYURETHANE FOAM CHINA ATMOSPHERE MERCURY TIANJIN PAHS |
DOI | 10.1016/j.envpol.2010.12.002 |
英文摘要 | Air soil exchange is an important process governing the fate of polycyclic aromatic hydrocarbons (PAHs). A novel passive air sampler was designed and tested for measuring the vertical concentration profile of 4 low molecular weight PAHs in gaseous phase (PAH(LMW4)) in near soil surface air. Air at various heights from 5 to 520 mm above the ground was sampled by polyurethane foam disks held in down-faced cartridges. The samplers were tested at three sites: A: an extremely contaminated site, B: a site near A. and C: a background site on a university campus. Vertical concentration gradients were revealed for PAH(LMW4) within a thin layer close to soil surface at the three sites. PAH concentrations either decreased (Site A) or increased (Sites B and C) with height, suggesting either deposition toot evaporation from soils. The sampler is a useful tool for investigating air soil exchange of gaseous phase semi-volatile organic chemicals. (C) 2010 Elsevier Ltd. All rights reserved.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000287273800004&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Environmental Sciences; SCI(E); EI; PubMed; 12; ARTICLE; 3; 694-699; 159 |
语种 | 英语 |
内容类型 | 期刊论文 |
源URL | [http://ir.pku.edu.cn/handle/20.500.11897/160678] |
专题 | 城市与环境学院 |
推荐引用方式 GB/T 7714 | Zhang, Yuzhong,Deng, Shuxing,Liu, Yanan,et al. A passive air sampler for characterizing the vertical concentration profile of gaseous phase polycyclic aromatic hydrocarbons in near soil surface air[J]. environmental pollution,2011. |
APA | Zhang, Yuzhong.,Deng, Shuxing.,Liu, Yanan.,Shen, Guofeng.,Li, Xiqing.,...&Tao, Shu.(2011).A passive air sampler for characterizing the vertical concentration profile of gaseous phase polycyclic aromatic hydrocarbons in near soil surface air.environmental pollution. |
MLA | Zhang, Yuzhong,et al."A passive air sampler for characterizing the vertical concentration profile of gaseous phase polycyclic aromatic hydrocarbons in near soil surface air".environmental pollution (2011). |
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