Study on Standards for Drinking Water Quality
Research on the determination of the limit value of perchlorate in the “Standards for Drinking Water Quality（GB5749-2022）” in China
Gao Shenghua, An Wei, Yang Min, Ye Bixiong, Zhang Lan
Published 2023-06-06
Cite as Chin J Prev Med, 2023, 57(6): 823-825. DOI: 10.3760/cma.j.cn112150-20221020-01018
Abstract
Perchlorate is an environmental pollutant that has been a focus of attention in recent years. It has been detected in many environmental water bodies and drinking water in China, with a high level of presence in some areas of the Yangtze River Basin. The human body may ingest perchlorate through exposure pathways such as drinking water and food, and its main health effect is to affect the thyroid′s absorption of iodine. The "Standards for Drinking Water Quality" (GB5749-2022) includes perchlorate as an expanded indicator of water quality, with a limit value of 0.07 mg/L. This article analyzes the technical content related to the determination of hygiene standard limits for perchlorate in drinking water, including the environmental presence level and exposure status of perchlorate, main health effects, derivation of safety reference values, and determination of hygiene standard limits.
Key words:
Perchlorate; Drinking water; Standard limit
Contributor Information
Gao Shenghua
China CDC Key Laboratory of Environment and Population Health/National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing 100021, China
An Wei
Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
Yang Min
Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
Ye Bixiong
China CDC Key Laboratory of Environment and Population Health/National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing 100021, China
Zhang Lan
China CDC Key Laboratory of Environment and Population Health/National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing 100021, China
