Kume Kazunari, Ohura Takeshi, Amagai Takashi, Fusaya Masahiro
Graduate School of Nutritional and Environmental Sciences, University of Shizuoka, 52-1 Yada, Shizuoka 422-8526, Japan.
Environ Pollut. 2008 Jun;153(3):649-57. doi: 10.1016/j.envpol.2007.09.023. Epub 2007 Nov 26.
Highly portable, sensitive, and selective passive air samplers were used to investigate ambient volatile organic compound (VOC) levels at multiple sampling sites in an industrial city, Fuji, Japan. We determined the spatial distributions of 27 species of VOCs in three campaigns: Mar (cold season), May (warm season), and Nov (mild season) of 2004. In all campaigns, toluene (geometric mean concentration, 14.0microg/m3) was the most abundant VOC, followed by acetaldehyde (4.76microg/m3), and formaldehyde (2.58microg/m3). The spatial distributions for certain VOCs showed characteristic patterns: high concentrations of benzene and formaldehyde were typically found along major roads, whereas high concentrations of toluene and tetrachloroethylene (PCE) were usually found near factories. The spatial distribution of PCE observed was extremely consistent with the diffusion pattern calculated from Pollutant Release and Transfer Register data and meteorological data, indicated that passive air samplers are useful for determining the sources and distributions of ambient VOCs.
使用高度便携、灵敏且具有选择性的被动空气采样器，对日本富士市这个工业城市的多个采样点的环境挥发性有机化合物（VOC）水平进行了调查。我们在2004年的三次采样活动中确定了27种VOC的空间分布，这三次采样活动分别是3月（寒冷季节）、5月（温暖季节）和11月（温和季节）。在所有采样活动中，甲苯（几何平均浓度为14.0微克/立方米）是含量最丰富的VOC，其次是乙醛（4.76微克/立方米）和甲醛（2.58微克/立方米）。某些VOC的空间分布呈现出特征性模式：苯和甲醛的高浓度通常出现在主要道路沿线，而甲苯和四氯乙烯（PCE）的高浓度通常出现在工厂附近。观察到的PCE空间分布与根据污染物排放和转移登记数据以及气象数据计算出的扩散模式极为一致，这表明被动空气采样器对于确定环境VOC的来源和分布很有用。
