某地区2020—2022年生活饮用水卫生检测结果分析  

Analysis of Sanitary Testing Results for Drinking Water in the Certain Region From 2020 to 2022

作　　者：汪志辉 薛成冰 关晓英 WANG Zhihui;XUE Chengbing;GUAN Xiaoying(Department of Inspection,Fuzhou Disease Prevention and Control Institute of China Railway Nanchang Group Co.,Ltd.,Fuzhou Fujian 350013,China)

机构地区：[1]中国铁路南昌局集团有限公司福州疾病预防控制所检验科,福建福州350013

出　　处：《中国卫生标准管理》2024年第24期56-59,共4页China Health Standard Management

摘　　要：目的分析2020年1月—2022年12月某地区生活饮用水卫生检测结果,为改善某地区生活饮用水水质卫生提供科学依据。方法研究共选择2020年1月—2022年12月某地区生活饮用水样本678份,参照GB 5749—2006《生活饮用水卫生标准》对某地区生活饮用水质量进行评价分析。结果2020年1月—2022年12月某地区生活饮用水样本选择中,二次供水占比最高为46.3%,集中式与分散式占比分别为33.9%、19.8%。2020年1月—2022年12月某地区生活饮用水微生物指标中菌落总数不合格检出率最高为6.49%,总大肠菌群不合格检出率为6.05%;感官项目检测中水质浑浊度不合格率检出率最高为6.34%,肉眼可见物不合格为5.31%、色度0.88%;其他依次为游离余氯不合格检出率为8.70%、铁0.59%、锰0.29%、锌0.29%、pH值0.29%、氟化物0.15%、硝酸盐(以N计)0.15%。结论2020年1月—2022年12月某地区生活饮用水水质卫生总体情况相对较好,但饮用水中菌落总数以及水质浑浊度不合格检出率较高。因此某地区应加强对生活饮用水卫生的消毒与监管,完善并提高水质处理的工艺,保障地区人们的生活用水安全。Objective To analyze the results of sanitary testing of drinking water in the certain region from January 2020 to December 2022,and provide scientific basis for improving the quality and hygiene of drinking water in the certain region.Methods A total of 678 samples of drinking water in the certain region from January 2020 to December 2022 were selected for the study,and the quality of drinking water in the certain region was evaluated and analyzed in accordance with the GB 5749—2006 Sanitary Standards for Drinking Water.Results Among the selected samples from January 2020 to December 2022,secondary water supply accounted for the highest proportion at 46.3%,followed by centralized water supply at 33.9%,and dispersed water supply at 19.8%.Regarding microbiological indicators,the highest non-compliance detection rate from January 2020 to December 2022 was for total bacterial count at 6.49%,followed by total coliforms at 6.05%.In the sensory ite m tests,the highest non-compliance detection rate was for turbidity at 6.34%,followed by visible substances at 5.31%,and chroma at 0.88%.Other non-compliance rates were as follows:free residual chlorine at 8.70%,iron at 0.59%,manganese at 0.29%,zinc at 0.29%,pH at 0.29%,fluoride at 0.15%,and nitrate(as N)at 0.15%.Conclusion The overall hygiene quality of drinking water in the region from January 2020 to December 2022 was relatively good,but the non-compliance detection rates for total bacterial count and turbidity were relatively high.The region should enhance the disinfection and supervision of drinking water hygiene,improve and upgrade water treatment processes,and ensure the safety of drinking water for the local population.

关 键 词：2020—2022年 某地区 生活饮用水 卫生检测 水质处理 用水安全 

分 类 号：R123[医药卫生—环境卫生学]