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目的:为进一步做好游泳场所卫生管理和保健工作,并为泳池卫生提供依据,调查了1997年夏季(6~9月)广州市泳池水的卫生状况.方法:选取广州市游泳池7间,各泳池每月抽检水样2次;并分别于深水区、浅水区两个点采样,检验项目:pH、浑浊度、耗氧量、尿素、游离性余氯、细菌总数及大肠菌群.结果:所有样本的pH值及细菌总数指标均在正常范围;浑浊度、耗氧量及大肠菌群指标达标率均在96%以上;游离性余氯的达标率最低(43%),其中低于标准位者占67.8%,高于标准位者占32.2%;其次为尿素(84%);6~9月份泳池水超标率有逐月上升的趋势,以9月份最高(14.94%),与6月份比较,差异接近显著(x2=3.173,p=0.07);泳池浅水区与深水区水质比较无显著性差异;冬泳池间超标率差别不显著(p=0.5046).结论:广州市游泳池水中游离性余氯及尿素是超标的主要项目.泳池管理应加强公共卫生宣教工作,普及卫生知识.
OBJECTIVE: In order to further improve the hygiene management and health care of swimming pools and to provide a basis for swimming pool hygiene, the sanitary status of swimming pool water in Guangzhou in the summer of 1997 (June-September) was investigated. Methods: Seven swimming pools were selected in Guangzhou City. Water samples were collected twice a month from each swimming pool. Samples were taken at two points in deep water and shallow water respectively. The items to be tested were pH, turbidity, oxygen consumption, urea, free chlorine , The total number of bacteria and coliform bacteria. Results: The pH value and the total number of bacteria in all the samples were in the normal range. The turbidity, oxygen consumption and coliform target rate were above 96%. The free chlorine reached the lowest rate (43%), of which low 67.8% of them were standard ones, 32.2% of them were above the standard ones, followed by urea (84%). The exceeding standard rate of swimming pools in June-September tended to increase month by month, .94%) compared with June, the difference was close to significant (x2 = 3.173, p = 0.07). There was no significant difference in water quality between the shallow and deep water pools; .5046). Conclusion: Free residual chlorine and urea in swimming pool water in Guangzhou are the main items that exceed the standard. Swimming pool management should strengthen the public health mission, popularizing health knowledge.