期刊
ENVIRONMENTAL POLLUTION
卷 144, 期 2, 页码 377-383出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.envpol.2005.12.047
关键词
passive sampling; wind effect; sampling rate; PCBs; atmosphere
Different passive sampler housings were evaluated for their wind dampening ability and how this might translate to variability in sampler uptake rates. Polyurethane foam (PUF) disk samplers were used as the sampling medium and were exposed to a PCB-contaminated atmosphere in a wind tunnel. The effect of outside wind speed on PUF disk sampling rates was evaluated by exposing polyurethane foam (PUF) disks to a PCB-contaminated air stream in a wind tunnel over air velocities in the range 0 to 1.75 m s(-1). PUF disk sampling rates increased gradually over the range 0-0.9 m s(-1) at similar to 4.5-14.6 m(3) d(-1) and then increased sharply to similar to 42 m(3) d(-1) at similar to 1.75 m s(-1) (sum of PCBs). The results indicate that for most field deployments the conventional 'flying saucer' housing adequately dampens the wind effect and will yield approximately time-weighted air concentrations. (c) 2006 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据