Objectives To understand the hygienic status of drinking water in Tongliao railway area, ensure the water safety for the residents along the way and passengers in the trains.
Methods According to "Drinking Water Standard Test Method for Sampling" (GB/T 5750-2006), the samples were tested after sampling, preservation and transportation to the laboratory. According to "Evaluation of Drinking Water Health Standards" (GB 5749-2006), the sample with only one indicator unqualified was determined as unqualified. A total of 280 water samples in 2009-2011 were collected for detection and evaluation.
Results The pass rate of fluoride, manganese and iron were lower, which was respectively 93.21%, 74.29% and 74.64%; the qualified rates of visible to the naked eye, oxygen consumption, smell and taste, chloride, total coliforms, chroma, turbidity as well as total hardness were respectively 99.64%, 99.64%, 99.64%, 98.93%, 98.93%, 98.57%, 98.21% and 96.79%, the total qualified rate was 53.93%.
Conclusions The hygenic status of drinking water in Tongliao railway area must be resolved; and some renovating suggestions have been proposed.
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