摘要
Abstract
[ Objective ] To find out the pollution characteristics of river water due to volatile organic compounds (VOCs) in Jinshan Second Industrial Zone. [ Methods ] Duplicate water samples were collected from the upper, middle, and lower streams of a river in Jinshan Second Industrial Zone in both dry and wet seasons in 2011. The determination of 13 VOCs was performed with blowing and arresting device and gas chromatography-mass spectrometry (GC-MS). [ Results ] The precision and accuracy of this method met the requirements of this survey plan. The rate of recovery was 90.4%-108.2%, and RSD was 0.52%-8.27%. The compounds detected in both dry and wet seasons were dichloromethane, 1, 1, 1-trichloroethane, benzene, 1, 2-dichloroethane, methylbenzene, chlorobenzene, ethylbenzene, dimethylbenzene, 1, 4-dichlorobenzene, and 1, 2-dichlorobenzene. However, according to Environmental Quality Standard for Surface Water, the concentrations of VOCs detected did not in any case exceed the prescribed limits. [ Conclusion ] Several VOCs are detected in the survey, among which 1, 2-dichloroethane presents the highest concentration. It suggests that enterprises should pay more attention to pollutant discharge management to prevent surface water quality from worsening.关键词
吹扫捕集-气相色谱质谱法/地表水/挥发性有机物Key words
blowing and arresting device and gas chromatography-mass spectrometry/ surface water/ volatile organic compounds分类
医药卫生
