2018—2020年张家港市生活饮用水氟化物、氯化物、硫酸盐及硝酸盐氮监测结果分析  

Analysis on monitoring results of fluoride,chloride,sulfate and nitrate nitrogen in drinking water in Zhangjiagang City from 2018-2020

作　　者：吴建兵[1] 吴梅[1] 陈祝军[1] 钱志荣[1] 秦园 WU Jian-bing;WU Mei;CHEN Zhu-jun;QIAN Zhi-rong;QIN Yuan(Physical and Chemical Laho raiory,Zhangj iagang Center for Disease Control and Prevention,Suzhou Jtangsiz,215600,China)

机构地区：[1]张家港市疾病预防控制中心理化检验科,江苏苏州215600

出　　处：《职业与健康》2021年第13期1808-1810,共3页Occupation and Health

基　　金：张家港市科技支撑计划(ZKS1921)。

摘　　要：目的分析2018—2020年张家港市饮用水中氟化物、氯化物、硫酸盐及硝酸盐氮监测结果,了解张家港市生活饮用水水质卫生状况,为制定科学、合理的生活饮用水安全管理策略和城市改水提供参考依据。方法参照GB 5750.2—2006《生活饮用水标准检验方法水样的采集和保存》分别于2018—2020年在张家港市生活饮用水供水点采集枯水期(2月)和丰水期(8月)的出厂水、末梢水和二次供水各1份进行检测,水质检测结果依据GB 5749—2006《生活饮用水卫生标准》进行评价。结果 2018—2020年张家港市共监测生活饮用水水样276份,枯水期、丰水期各50%,出厂水18份,末梢水228份,二次供水30份,总体合格率100%。不同年份生活饮用水中氯化物、硝酸盐氮含量差异均有统计学意义(均P<0.05),硫酸盐,氟化物含量差异均无统计学意义(均P>0.05);枯水期、丰水期饮用水中4种无机离子含量差异均有统计学意义(均P<0.05),出厂水、末梢水和二次供水中4种无机离子含量差异均无统计学意义(均P>0.05)。硝酸盐氮与氟化物、硫酸盐、氯化物均呈正相关(均P<0.05),硫酸盐与氯化物呈正相关(P<0.05)。结论张家港市城乡饮用水卫生质量较好,但生活饮水安全事关人民群众生产生活和身体健康,相关政府行政部门应继续加强水质监测,定期开展水质健康风险评估,保障当地居民的饮水健康。Objective To analyze the monitoring results of fluoride,chloride,sulfate and nitrate nitrogen in drinking water in Zhangjiagang City from 2018-2020,understand the sanitary status of drinking water in Zhangjiagang,and provide reference basis for making scientific and reasonable safe management strategy of drinking water and water improvement in Zhangjiagang City.Methods Taking reference to GB 5750.2-2006 Standard examination method for drinking water-collection and preservation of water samples,one sample of tap water,terminal water and secondary water supply at drinking water supply points in Zhangjiagang was respectively collected in the dry season(February) and the wet season(August) from 2018-2020,and the testing results of water quality were evaluated according to GB 5749-2006 Standard for drinking water quality. Results Totally 276 samples of drinking water in Zhangjiagang City were tested from 2018-2020,50% in the dry season and 50% in the wet season,there were 18 samples of tap water,228 samples of terminal water and 30 samples of secondary water supply,and the overall qualified rate was 100%. The differences in the contents of chloride and nitrate nitrogen in drinking water were statistically significant among different years(all P<0.05),while the differences in the contents of fluoride and sulfate were not statistically significant(all P>0.05). There were statistically significant differences in the contents of four inorganic ions in drinking water between the dry season and the wet season(all P<0.05). There were no statistically significant differences in the contents of four inorganic ions among tap water,terminal water and secondary water supply(all P>0.05). Nitrate nitrogen was positively correlated with fluoride,sulfate and chloride(all P<0.05),and sulfate was positively correlated with fluoride(P<0.05). Conclusion The sanitary quality of drinking water in urban and rural areas in Zhangjiagang City is good. However,the safety of drinking water is related to people’s life,production and health,rele

关 键 词：生活饮用水 水质 监测 

分 类 号：R123.1[医药卫生—环境卫生学]