2006—2010年兰州铁路局铁路沿线自备集中式供水水质变化分析

Analysis on the Water Quality of Centralized Water Supplies along the Railway Lines of Lanzhou Railway Administration in 2006—2010

目的通过分析兰州铁路局铁路沿线自备集中式供水水质的状况,为制定安全自备集中式供水策略提供参考依据。方法利用2006—2010年间兰州铁路局辖区的6个车务段自备集中式供水卫生监督监测资料,对水质进行统计学分析。结果自备集中式供水水质菌落总数、总大肠菌群和耐热大肠菌群等微生物指标总体合格率均在95%以上;水质毒理学、感官性状和一般化学等指标基本没有变化,大多数指标合格率基本都保持在90%左右。结论兰州铁路局铁路沿线自备集中式供水水质质量良好。

Objectives To provide theoretical basis for establishing strategies of keeping the water from cen- tralized water suppliers safe through analyzing the quality of water supplied along the railway lines of Lanzhou Rail- way Administration. Methods Using the health supervision and monitoring data of centralized water supplied in six train service depots of Lanzhou Railway Administration in 2006--2010 to produce statistical analysis. Results The pass rates of total coliform bacteria colonies, coliforms and heat resistant organisms in water were 95% or more; the quality of toxicology, sensory properties and general chemical indexes of water in five years had not changed, the qualified rates of most indicators were maintained at 90%. Conclusions The quality of water in the centralized water suppliers along the railway lines of Lanzhou Railway Administration was good. Strengthening dy- namic management to ensure the quality and safety of water is necessary.