“5.5”嘉陵江铊污染事故应急监测与结果分析  

Emergency Monitoring of the May 5 Thallium Pollution Accident in Jialing River and Analysis of Results

作　　者：李波[1] 石卜方 穆芳[1] LI Bo;SHI Bufang;MU Fang(Guang-yuan Municipal Center for Disease Control and Prevention, Guartgyuan 628017, Sichuan Province, China)

机构地区：[1]广元市疾病预防控制中心,四川广元628017

出　　处：《预防医学情报杂志》2019年第4期403-406,共4页Journal of Preventive Medicine Information

摘　　要：目的通过对2017-05-05嘉陵江铊污染事件中水样监测数据的分析,事件处置过程的回顾,了解铊污染的形成、发生情况,总结经验教训,为此类突发性水污染事件的预防及控制提供科学依据。方法对415份水源水、出厂水、应急水源和末梢水进行统计分析,判断本次污染事件性质,评价本次处置措施效果。结果 415份水样中合格345份,不合格水样主要来自西湾水厂,西湾水厂监测水样260份,合格195份,合格率75.0%,其水源水、出厂水和末梢水污染物最高浓度及出现时间分别为5月5日22时0.000 48 mg/L、0.000 59 mg/L,6日07时0.000 52 mg/L,监测合格时间分别为7日09时、14时、22时。结论通过对监测数据的分析,本次污染为突发一次性输入型,西湾水厂受污染影响最大,铊浓度合格符合时间特征,管网受污染,不同监测点结果差异较大;而信息共享、部门合作、程序简化是应对突发公共卫生事件发生达到快速、高效、处置成功的关键因素。Objective Through analysis of the water sample monitoring data in the Jialing River thallium pollution accident on May 5, 2017 and review of the event handling process, to understand formation and occurrence of thallium pollution and summarize the experience and lessons so as to provide scientific bases for the prevention and control of such sudden water pollution events. Methods Data of 415 samples of source water, treated water, water from emergency response sources and tap water were statistically analyzed to determine the nature of the pollution event and evaluate the effect of the handling measures. Results Among the 415 samples, 345 were qualified. Unqualified water sample were mainly from the Xiwan Water plant, where 260 water samples were collected and 195 (75.0%) were qualified. Highest concentrations of the pollutant in source water, treated water and tap water were 0.000 48 mg/L, 0.000 59 mg/L and 0.000 52 mg/L, occurring at 22:00 on May 5, 22: 00 on May 5 and 7: 00 on May 6, respectively. Qualified results were obtained at 9: 00, 14: 00 and 22: 00 on May 7, respectively. Conclusion Through analysis of monitoring data, it is known that the pollution event was a one-off imported emergency. Xiwan water plant was most seriously polluted. The Thallium concentration was accorted with the characteristic of time. The pipe network is polluted, and the greatly different data were collected from different monitoring points. Information sharing, departmental cooperation and simplification of procedures are the key factors for rapid, efficient and successful response to public health emergencies.

关 键 词：嘉陵江 铊污染 应急监测 污染控制 

分 类 号：R123.1[医药卫生—环境卫生学]