晋城地区农村饮水水质安全评价体系研究

Safety evaluation system of rural drinking water quality in Jincheng area

本文以晋城地区为例,对当地25处农村供水工程的50个水样进行了水质监测分析和健康风险评估。结果表明,该地区农村饮水水质总体达标率为72%;影响该地区农村饮水水质的主要因素是硫酸盐超标,其次是总大肠菌群超标,部分地区存在氟化物和硝酸盐(N)等毒理指标超标;农村饮水中硫酸盐和氟化物超标存在地域性特征,硝酸盐(N)和微生物指标超标则无特定规律;该地区农村饮水总体上不存在明显的健康风险,水质安全水平较高。该研究可为农村饮水水质安全评价提供新思路。

Taking Jincheng area as an example,50 water samples from 25 local rural water supply projects were monitored and analyzed for water quality and health risk assessment.The results showed that the overall qualified rate of rural drinking water quality in this area was 72%.The main reason affecting the drinking water quality in rural areas in this area is that sulfate exceeds the standard,followed by total coliform bacteria,and some areas have toxic indicators such as fluoride and nitrate(N)exceeding the standard.Excessive sulfate and fluoride in rural drinking water are regional,while excessive nitrate(N)and microbial indicators have no specific rules.Generally speaking,there is no obvious health risk in rural drinking water in this area,and the water quality is safe.This study can provide new ideas for rural drinking water quality safety evaluation.