摘要
目的了解游泳池水的卫生状况,分析水中氯化消毒副产物的含量及其影响因素,为游泳池水的卫生管理以及水中氯化消毒副产物的卫生标准的制定提供参考依据。方法 2013年6~9月,对广州市19个持有卫生许可证的游泳场所进行抽样调查,采集游泳池水样42份,同时在游泳池入水口采集市政自来水末梢水13份,检测三氯甲烷、二氯乙酸、三氯乙酸、pH值、尿素、浑浊度、细菌总数、大肠菌群和游离余氯指标。结果共抽检19个游泳场馆,均采用氯消毒剂进行消毒。尿素、细菌总数和游离余氯的合格率分别为83.33%、90.48%和64.29%,其余常规指标均合格。泳池水中三氯甲烷、二氯乙酸和三氯乙酸的含量分别为（0.045±0.030）、（0.050±0.018）、（0.031±0.015）mg/L;经Pearson相关分析,三氯甲烷含量与浑浊度、游离余氯均呈正相关（P〈0.01）;二氯乙酸含量与尿素、细菌总数和大肠菌群均呈正相关（P〈0.05）。结论游泳池水卫生状况比较差,建议在国家标准中增加氯化消毒副产物的限值,采取有效措施减少氯化消毒副产物的浓度,保护游泳者身体健康。
Objective To understand the hygienic quality of water in swimming pools, analyze the concentration of chlo- rination disinfection byproducts （cDBPs） in swimming pool and the influence factors,so as to provide basis for working out hygienic standards. Methods During June-September,2013,42 swimming pool water samples were collected in 19 swimming pools and 13 pipe water samples were collected at each swimming pool. chloroform,dichloroacetic acid,trichlo- roacetic acid, pH, carbamide, turbidity, total bacterial count, coliform and free chlorine residual were determined. Results The qualification rate of carbamide,total bacterial count and freechlorine residual was respectively 83.3 %, 90.5 % and 64.3 %, and the concentration ofchloroform, dichloroacetic acid, triehloroacetic acid was respectively 0. 045 ± 0. 030 mg/L, 0. 050±0. 018 mg/L,and 0. 031±0. 015 mg/L. Chloroform concentration was correlated positively with turbidity and free chlorine residual, and positive correlation were also found between dichloroacetic acid andcarhamide（ P 〈0.01）, total bacterial count and coliform bacteria（ P 〈0.01）. Conclusion The hygienic condition of water in swimming pools is poor in Guangzhoucity. It is suggested to increase the disinfection by-products limits in the national standard,take effective measures to reduce the concentration of disinfection by-products,so as to protect the health of swimmers.
出处
《预防医学论坛》
2015年第5期324-326,共3页
Preventive Medicine Tribune
基金
广州市医药卫生科技项目(No.20131A011113)
关键词
游泳池
卫生状况
氯化消毒副产物
Swimming pool, Hygienic conditions
Chlorination disinfection by-products
