A directional passive air sampler for monitoring polycyclic aromatic hydrocarbons (PAHs) in air mass

被引：19

作者：

Tao, S. ^{[1
]}

Liu, Y. N. ^{[1
]}

Lang, C. ^{[1
]}

Wang, W. T. ^{[1
]}

Yuan, H. S. ^{[1
]}

Zhang, D. Y. ^{[1
]}

Qiu, W. X. ^{[1
]}

Liu, J. M. ^{[1
]}

Liu, Z. G. ^{[1
]}

Liu, S. Z. ^{[1
]}

Yi, R. ^{[1
]}

Ji, M. ^{[1
]}

Liu, X. X. ^{[1
]}

机构：

[1] Peking Univ, Coll Environm Sci, Lab Earth Surface Proc, Beijing 100871, Peoples R China

来源：

ENVIRONMENTAL POLLUTION | 2008年 / 156卷 / 02期

基金：

美国国家科学基金会;

关键词：

Passive sampler; PAHs; Directional sampling;

D O I：

10.1016/j.envpol.2008.01.041

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A passive air sampler was developed for collecting polycyclic aromatic hydrocarbons (PAHs) in air mass from various directions. The airflow velocity within the sampler was assessed for its responses to ambient wind speed and direction. The sampler was examined for trapped particles, evaluated quantitatively for influence of airflow velocity and temperature on PAH uptake, examined for PAH uptake kinetics, calibrated against active sampling, and finally tested in the field. The airflow volume passing the sampler was linearly proportional to ambient wind speed and sensitive to wind direction. The uptake rate for an individual PAH was a function of airflow velocity, temperature and the octanol-air partitioning coefficient of the PAH. For all PAHs with more than two rings, the passive sampler operated in it linear uptake phase for three weeks. Different PAH concentrations were obtained in air masses from different directions in the field test. (c) '2008 Elsevier Ltd. All rights reserved.

引用

页码：435 / 441

页数：7

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