2012-2015年北京市石景山区游泳池水质卫生监测

Analysis of water hygiene monitoring in swimming pools in Shijingshan district of Beijing during 2012 to 2015

目的了解北京市石景山区游泳池水卫生状况,保障游泳者身体健康。方法按照国家相关标准对石景山区游泳池水进行样品采集、检验和评价。结果 2012-2015年共采集游泳池水样762件,合格111件,总合格率为14.6%,其中游离性余氯、尿素和水温是游泳池水不合格的主要项目;各年总体合格率差异无统计学意义(χ~2=7.74,P>0.05),但不同月份总合格率差异有统计学意义(χ~2=14.94,P<0.05);不同类型游泳场所(宾馆饭店内设游泳池、学校内设游泳池和社会盈利性游泳池)尿素和细菌总数合格率差异有统计学意义(尿素χ~2=55.67,细菌总数χ~2=33.46,P<0.001),室内外水温和尿素合格率差异也有统计学意义(水温χ~2=6.12,尿素χ~2=3.96,P<0.05)。结论石景山区游泳场所水质不合格项目主要为游离性余氯、尿素和水温,应加强对游泳场所的卫生监管,强化游泳池水的消毒工作,同时须注意定期换水以避免尿素超标。

Objective To survey the hygienic quality of water in swimming pools in Shijingshan district of Beijing for sake of a healthy environment to swimmers. Methods Water samples were collected,tested and evaluatedccording to the national standard. Results 111 /762（ 14. 6%） water samples were qualified during 2012- 2015. Free residual chlorine,urea and water temperature are the main items. The qualification rate of water samples showed no statistical significance（ χ^2= 7. 74,P〈0. 05） between years,whereas it was statistically significant monthly（ χ^2= 14. 94,P〈0. 05）. The qualification rates of urea（ χ^2= 55. 67,P〈0. 001）） and total bacteria（ χ^2= 33. 46,P〈0. 001） were statistically significant in hotel,campus and other social swimming pools. And the qualification rate of water temperature（ χ^2= 6. 12,P〈0. 05） and urea（ χ^2= 3. 96,P〈0. 05） were significantly different between indoor and outdoor swimming pools. Conclusion Free residual chlorine, urea and water temperature are the main unqualified items of water samples of swimming pools in Shijingshan district. The improvement of the qualification rate of swimming pool water needs restrict health super vision as well as appropriated is infection. The swimming pool water should be refreshed regularly to reduce excessive urea.