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目的分析珠三角某市游泳场所水质卫生监测结果,为改善泳池水质,防止传染病传播提供技术依据。方法整理2011-2015年的水质监测数据,采用SPSS17.0软件对不同游泳场所类型、月份、检测指标进行统计分析。结果2011-2015年泳池水质监测5年总合格率70.50%,各年合格率分别为74.48%、79.31%、74.69%、65.43%,57.98%,各年差异有统计学意义(χ~2=68.90,P<0.005)。不同类型游泳场所5年总合格率依次为公共体育设施及学校79.80%、酒店配套75.45%、经营性70.95%、小区配套68.44%,合格率差异有统计学意义(χ~2=84.36,P<0.005)。各检测指标5年合格率最高为浑浊度(99.72%),尿素(84.48%)和游离余氯(82.64%)较低。结论某市游泳场所水质状况相对良好,但从2014年开始明显下降。小区配套泳池、经营性场所水质较差,传染病传播的风险较大。游离余氯、尿素是影响水质合格率最主要的水质指标。
Objective To analyze the results of sanitary monitoring of water quality in swimming places in a certain city of Pearl River Delta and provide technical basis for improving swimming pool water quality and preventing the spread of infectious diseases. Methods The data of water quality monitoring in 2011-2015 were sorted out, and the types, months and indexes of different swimming places were analyzed by SPSS17.0 software. Results The overall qualification rate of swimming pool water quality monitoring in 2011-2015 was 70.50%, with the pass rates of 74.48%, 79.31%, 74.69%, 65.43% and 57.98% respectively in each year, with significant differences in each year (χ ~ 2 = 68.90 , P <0.005). The five-year total passing rate of different types of swimming places was 79.80% for public sports facilities and schools, 75.45% for hotel facilities, 70.95% for business operations and 68.44% for residential areas, with significant differences in pass rates (χ ~ 2 = 84.36, P < 0.005). The highest five-year pass rate of each test index was turbidity (99.72%), urea (84.48%) and free residual chlorine (82.64%) were lower. Conclusion The water quality of the swimming place in a certain city is relatively good, but it drops obviously from 2014 onwards. Community supporting swimming pool, poor water quality of business premises, the greater the risk of transmission of infectious diseases. Free residual chlorine, urea is the main water quality indicators that affect the passing rate of water quality.