Health Risk Assessment of Centralized Drinking Water Sources in Small Towns of Chongqi City : A Case Study of Beibei District

• 作者: Liu Meiling Yang Xianshuang
• 来源期刊: 气象与环境研究:英文版
• 学科: 地球科学
• 关键词: Small TOWNS DRINKING water SOURCES HEALTH RISK assessment
• 年，卷（期）: 2019,（4）
• 页码范围: 97-99
• 页数: 3页
• 分类号: P

摘要

Based on the health risk assessment model of water quality recommended by United States Environmental Protection Agency (USEPA), the health risk of five centralized drinking water sources in small towns of Beibei District, Chongqing City was evaluated. The results showed that the risk of health hazard of chemical carcinogen arsenic did not exceed the acceptable level recommended by the International Commission on Radiological Protection (ICRP)(5.0×10 -5 a -1 ), but was still at the same order of magnitude as the recommended value of ICRP. The risk of the highest health hazard was 127 times higher than the maximum acceptable level recommended by Sweden EPA and Holland EPA (1.0×10 -6 a -1 ). The health risk of As in genetic toxic substances at monitoring points A, B, and C accounted for 99.99% of the total risk, showing that As was the main pollutant that posed the health risk, so priority should be given to the prevention and control of As pollution in the centralized drinking water sources in Chongqing towns.