Research on the standard limits for vinyl chloride and trichloroethylene in the "Standards for Drinking Water Quality（GB5749-2022）" in China.
10.3760/cma.j.cn112150-20221024-01027
- Author:
Jia Yi HAN
1
;
Lan ZHANG
1
;
Sheng Hua GAO
1
;
Shao Xia DONG
1
;
Bi Xiong YE
1
Author Information
1. China CDC Key Laboratory of Environment and Population Health/National Institute of Environmental Health, Chinese Center for Disease Control and Prevention,Beijing 100021, China.
- Publication Type:Journal Article
- MeSH:
Humans;
Vinyl Chloride/analysis*;
Trichloroethylene/analysis*;
Drinking Water;
Environmental Pollutants;
China;
Water Pollutants, Chemical/analysis*
- From:
Chinese Journal of Preventive Medicine
2023;57(6):835-838
- CountryChina
- Language:Chinese
-
Abstract:
The usage of vinyl chloride and trichloroethylene in China has been increasing year by year, and they have been detected in both drinking water and environmental water, making them important environmental pollutants. Based on the latest research results on the health effects of vinyl chloride and trichloroethylene, the newly issued, "Standards for Drinking Water Quality (GB5749-2022)" in China has adjusted the standard limit of vinyl chloride from 0.005 mg/L to 0.001 mg/L and the standard limit of trichloroethylene from 0.07 mg/L to 0.02 mg/L. This article analyzed and discussed the relevant technical contents for determining the above standard limits, including the levels and exposure conditions of vinyl chloride and trichloroethylene in the water environment, health effects, derivation of safety reference values, and determination of hygiene standard limits. Suggestions were also made for the implementation of this standard.
