大连市2013年夏季游泳池水水质卫生状况分析

目的了解大连市游泳池水水质卫生状况,为进一步加强游泳场所卫生管理提供科学依据。方法按照《公共场所卫生标准检验方法》(GB/T 18204-2000)《生活饮用水标准检验方法》(GB/T 5750-2006)对细菌总数、大肠菌群、浑浊度、pH值、游离性余氯、尿素等项目进行检验,根据《游泳场所卫生标准》(GB 9667-1996)进行水质评价。结果 2013年夏季共检测游泳池水样203份,全部检测项目都合格的为151份,总体合格率为74.38%。浑浊度的检测合格率最高为100.00%;尿素合格率为98.03%;细菌总数和大肠菌群合格率均为99.01%;pH值合格率为89.16%;游离性余氯的合格率最低,为84.73%。酒店附属、学校附属、健身休闲场馆3种不同类型场所水质合格率差异无统计学意义(χ2=0.0043,P0.05)。结论大连市游泳场所水质卫生卫生状况不容乐观,应加强对游泳场所的卫生监管和池水消毒工作。

Analysis on sanitary conditions of swimming pool water in Dalian city in the summer of 2013

Objective To understand the water quality of swimming pools in Dalian city in the summer of 2013, provide the scientific evidence for the further health management of swimming pools. Methods The levels of total bacterial count, coliform group, turbidity, pH value, free residual chlorine and urea were detected according to the Hygienic standard and test method for public places （GB/T18204-2000） and the Standard examination methods for drinking water （GB/T 5750-2006）, the Hygienic standard for swimming place （GB 9667-1996） was applied to evaluate the water quality. Results A total of 203 water samples were detected, and 151 samples were qualified for all indexes with the qualified rate of 74.38%. The qualified rate of turbidity and urea was 100.00% and 98.03%, while total bacterial count, Coliform group count and urea was 99.01%, 99.01% and 89.16%, respectively. The qualified rate of free chlorine residual （84.73%） was the lowest. There were no significant differences in qualified rates among three types of swimming pool （fitness centers, four or five star hotels and schools）. Conclusion The sanitary situation of water quality of swimming pools in Dalian City is not optimistic. It is necessary to strengthen health surveillance and water disinfection.