2015年-2017年延安市区游泳池水卫生监测分析

Monitoring and analysis of hygienic quality of swimming pool water in Yan'an City from 2015 to 2017

目的探讨延安市游泳池水卫生状况,提高游泳人群的身体安全保障,加强本市区游泳公共场所水质卫生监督提供科学的依据。方法采用GB/T 18204—2000《公共场所卫生标准检验方法》、GB/T 5750.4—2006《生活饮用水标准检验方法感官性状和物理指标》、GB/T 18204.2—2014《公共场所卫生检验方法第2部分:化学污染物》、现场比色法对2015年-2017年的6月-8月延安市区游泳池水样品进行检验,按照GB/T 9667—1996《游泳场所卫生标准》进行评价。结果2015年-2017年夏季监测游泳池水样共计108份,合格44份,合格率为40.74%,3年间合格率差异无统计学意义(χ^2=1.46,P>0.05);不合格项目主要为游离性余氯(37.04%),其次为细菌总数(61.11%)、尿素(94.44%)、大肠菌群(88.89%)。结论2015年-2017年延安市游泳池水卫生质量呈上升趋势,但存在的问题仍然很多,卫生监督部门应加强监管。

Objective To investigate the water hygiene status of swimming pools in Yan'an City,improve the physical safety of swimmers,and provide scientific basis for strengthening the water hygiene supervision of swimming public places in Yan'an City.Methods The samples of swimming pool water in Yan'an City from June to August during 2015-2017 were tested by GB/T 18204—2000,GB/T 5750.4—2006,Sensory Characters and Physical Indicators of Standard Inspection Method for Drinking Water,GB/T 18204.2—2014,Part 2 of Hygienic Inspection Method for Public Places:Chemical Pollutants and on-site colorimetry,and was evaluated by GB/T 9667—1996 Hygienic Standards for Swimming Places.Results In the summer of 2015-2017,a total of 108 swimming pool water samples were monitored,44 were qualified,and the pass rate was 40.74%.There was no statistical significance on the difference in the pass rate between the three years(χ^2=1.46,P>0.05);the unqualified items were mainly free residual chlorine(37.04%),followed by total bacteria(61.11%),urea(94.44%),and coliform bacteria(88.89%).Conclusion From 2015 to 2017,the water sanitation quality of swimming pools in Yan'an City is on the rise,but there are many problems.The health supervision department should strengthen the supervision.