Pollution Characteristics and Health Risk Assessment of Volatile Organic Compounds in Baiyangdian Lake

• Published in: Huanjing kexue Vol. 39; no. 5; p. 2048
• Main Authors: Gao, Qiu-Sheng, Zhao, Yong-Hui, Jiao, Li-Xin, Tian, Zi-Qiang, Yang, Liu, Yang, Su-Wen, Cui, Zhi-Dan, Hao, Zi-Feng
• Format: Journal Article
• Language: Chinese
• Published: China 08.05.2018
• Subjects: China; Cities; Environmental Monitoring; Humans; Lakes - chemistry; Risk Assessment; Volatile Organic Compounds - analysis; Water Pollutants, Chemical - analysis; China; Cities; health risk assessment; comprehensive pollution index; volatile organic compounds (VOCs); distribution characteristics; Baiyangdian Lake
• ISSN: 0250-3301
• DOI: 10.13227/j.hjkx.201710232

In order to survey the present pollution from volatile organic compounds in Baiyangdian Lake, 15 water samples were collected in March 2016, and analyzed for 54 VOCs by purge and trap gas chromatography-mass spectrometry. The distribution characteristics and health risk assessments were investigated, and the pollution from the VOCs was evaluated by a comprehensive pollution index. The survey showed that:① a total of 14 VOCs were detected in Baiyangdian water, with a 100% detection rate for dichloromethane, benzene, toluene, ethylbenzene, xylene, and 1,3,5-trimethylbenzene; xylene had the highest concentration with an average concentration of 564.9 ng ·L ; and trichloroethylene had the lowest concentration with an average concentration of 3.3 ng ·L and a detection rate of only 13.3%; ② the total concentration of VOCs in Baiyangdian water was between 423.0 and 4207.8 ng ·L , and benzene was the main pollutant, with its main source coming from the effluent from the upstream sewage treatment plant, the industrial