摘要
目的了解集团公司济南辖区二次供水卫生状况,探索改善铁路二次供水系统的水质对职工健康影响的思路。方法按照《生活饮用水标准检验方法》进行采样与检测,依据《二次供水设施卫生规范》进行评价,分别对工程验收和日常检测水质进行统计分析。结果二次供水的日常检测合格率82.69%,高于工程验收合格率65.77%(P<0.05)。二次供水的日常检测合格率分析,生活区、客运车站、股道上水井和列车水箱供水合格率依次降低,不同采样地点合格率差异有统计学意义(P<0.05);所有月份合格率均在74%以上,3月、4月、6月和9月合格率均在80%以下,微生物指标和消毒剂指标合格率变化趋势与全指标合格率变化趋势一致;出厂水合格率90.54%,高于末梢水合格率81.19%(P<0.05);微生物指标及消毒剂指标不合格是引起二次供水不合格的主要因素。结论集团公司济南辖区二次供水合格率较高,但卫生状况存在隐患,应进一步加强对二次供水的监管。
Objective To understand the sanitary condition of secondary water supply in jinan railway area and provide scientific basis for railway departments to improve secondary water supply.Methods According to《Standard test method for drinking water》,we sampled and tested the water quality.On the basis of《Hygienic specification for facilities of secondary water supply》,we analyzed the data about engineering acceptance and daily detection water quality.Results Daily detection of secondary water supply qualified rate was 82.69%,higher than engineering acceptance of secondary water supply qualified rate 65.77%(P<0.05).Acoording to the daily detection qualified rate analysis of secondary water supply,the qualified rate of water supply from living area,passenger station,well of the train track and train water tank was decreased successively.The difference of the qualification rate among the sampling locations is statistically significant(P<0.05);The qualified rate in each month is all above 74%.The qualified rate in March,April,June and September is below 80%.Soil microbial indicators and disinfectant indicators qualified rate trend consistent with all indicators qualified rate trend.The qualified rate of ex-factory water was 90.54%,which was higher than 81.19%of peripheral water(P<0.05).The unqualified soil microbial indicators and disinfectant indicators are the main factors causing the unqualified secondary water supply.Conclusion The qualified rate of secondary water supply in jinan railway area is higher than other water supply types,but there are hidden dangers in the health situation.The supervision of secondary water supply should have further strengthen.
作者
黄天资
宋少锋
刘肖辉
陶明锐
HUANG Tian-Zi;SONG Shao-Feng;LIU Xiao-Hui;TAO Ming-Rui(Department of Labor and Health,China State Railway Group Co.,Ltd.,Beijing 100844,China;Jinan Railway Center for Disease Control and Prevention,Jinan 250001,China;Jinan Railway Health Supervision Institute,Jinan 250001,China)
出处
《实验室检测》
2024年第7期149-152,共4页
Laboratory Testing
基金
中国国家铁路集团有限公司科技研究开发计划合同(合同编号:K2023S018)
关键词
二次供水
铁路单位
检测结果
secondary water supply
railway units
test results
