江西农业学报2016，Vol.28Issue(2)：96-100,111,6.
南宁市环境空气中挥发性有机物污染特征与健康风险评价
Pollution Characterisit cs and Health RiskA sses ment of Atmospheric VOCs in Nanning City
摘要
Abstract
In order to analyze the pollution characteristics and health risk assessment of atmospheric VOCs in Nanning city, eight air sites in different parts of Nanning city were chosen to get the air samples by tenax-TA adsorption pipe, the measurements of 22 kinds of VOCs in the ambient air of Nanning city were carried out by hot stripping gas chromatography-mass spectrometry, the ambient level, pollution characteristics and the sources identification were studied, on this basis, the health risk of VOCs in the ambient air in Nanning city was assessed with the international recognized health risk assessment method.Results showed that a total of 10 kinds of substances which belonged to benzene series and halogenated hydrocarbon had been detected in the ambient air, the benzene series was the main source of VOCs in the ambient air.The mean and the range of the mass concentrations of VOCs were 14.2 μg/m3 and 2.8~31.2 μg/m3 , respectively.The concentration ratio of benzene and toluene was between 0.21~0.60.In addition to the motor vehicle exhaust emission, volatilization of paints and solvent were another important sources of VOCs.The order of mean concentration of VOCs in different area was the urban area >industrial area>suburb, the concentration of VOCs in 2014 was higher than that of in 2009.Health risk assessment showed that the hazard index ( HI) was 9.51×10-2 , the cancer RISK value ( RISK) were from 1.14 ×10-7 to 1.22 ×10-5 .VOCs in ambient air had no appreciable risk of adverse non-cancer health effect on the exposed population, the cancer risk for tetrachloroethylene could be accepted, but the chloroform, 1, 2-dichloroethane and benzene in ambient air existed cancer risk, close attention should be paid to this condition.关键词
环境空气/挥发性有机物/污染特征/健康风险评价/南宁市Key words
Ambient air/VOCs/Pollution characteristics/Health risk assessment/Nanning city分类
资源环境引用本文复制引用
蒋建宏,蔡卓,廖平德,付洁,覃莎,陈德翼..南宁市环境空气中挥发性有机物污染特征与健康风险评价[J].江西农业学报,2016,28(2):96-100,111,6.基金项目
广西科技基础条件平台建设项目（10－108－27H）；广西突发污染事故应急技术研究特聘专家岗位项目。 （）
