Simple Analysis of Volatile Organic Compounds (VOCs) in the Atmosphere Using Passive Samplers
Simple Analysis of Volatile Organic Compounds (VOCs) in the Atmosphere Using Passive Samplers
复制标题
DOI：
10.2116/analsci.20.107
复制
发表时间：
2004-01
影响因子：
1.6
通讯作者：
E. Yamada;Yusuke Hosokawa;You Furuya;Kazumasa Matsushita;Y. Fuse
中科院分区：
文献类型：
--
作者：
E. Yamada;Yusuke Hosokawa;You Furuya;Kazumasa Matsushita;Y. Fuse
采用被动式采样器对大气中低浓度的苯、甲苯、间、对二甲苯和邻二甲苯等挥发性有机化合物进行了简单的分析。应用该方法分析了京都市VOCs的行为和来源。被动采样器在京都市的采样点暴露7 - 14天，在山区（Mt.比永山Daimonji）。采用活性炭填充的柴田气管采样器进行VOCs的测定。用二硫化碳（CS_2）萃取吸附的挥发性有机物，用FID气相色谱法测定。VOCs的测定限和相对标准偏差分别为0.3 µg/m^3和3%。2001年3月，在5个地点和13个站点安装了采样器。2002年11月，比永。环境苯的平均浓度，除了山的那些，都高于环境标准（3.0 μg/m^3）。从2001年3月至2002年2月的Daimonji，从2002年3月至2003年2月降至3.0 µg/m^3以下。环境中苯含量的减少可能是由于1999年底汽油中苯含量的减少，以及2001年《污染物排放和转移登记法》的实施。
A simple analysis of volatile organic compounds (VOCs), such as benzene, toluene, m, p -xylene, and o -xylene, at low levels in the atmosphere was conducted using passive samplers. The methods were applied to analyzing the behavior and origin of VOCs in Kyoto City. The passive samplers were exposed for 7 - 14 days at sampling sites in Kyoto City and for 30 days in the mountains (Mt. Hiei and Mt. Daimonji). Shibata gas-tube samplers packed with activated carbon were used for the determination of VOCs. The absorbed VOCs were extracted into carbon disulfide (CS_2) and measured by FID-GC. The determination limits and relative standard deviations for VOCs were 0.3 µg/m^3 and 3%, respectively. The samplers were set up at 5 sites in March, 2001 and at 13 stations on Mt. Hiei in November, 2002. The average concentrations of ambient benzene, which were higher than the environmental criterion (3.0 µg/m^3), except for those on Mt. Daimonji from March, 2001, to February, 2002, decreased to below 3.0 µg/m^3 from March, 2002, to February, 2003. The decrease in ambient benzene may have been due to a decrease in the benzene content in gasoline by the end of 1999, and also by implementation of the Pollutant Release and Transfer Register (PRTR) Act in 2001.