2016-2020年山西省城市生活饮用水水质情况分析

Analysis of Urban Drinking Water Quality in Shanxi Province from 2016 to 2020

为了解山西省2016—2020年城市生活饮用水水质情况,为管理和改善生活饮用水质量提供参考依据,依据GB/T5750-2006《生活饮用水标准检验方法》进行水样采集、保存、运输和检测,结果按照GB5749-2006《生活饮用水卫生标准》进行评价。2016—2020年共检测样品766份,合格样品620份,合格率为80.9%。三类生活水水源中,合格率最高的是以地表水为水源的集中式供水,为78.5%;其次是以地下水为水源的集中式供水,为73.5%;最低的为地表水地下水混供地区,为55.6%。不合格项目主要为消毒剂含量、消毒剂副产物、总硬度、硫酸盐、浑浊度、肉眼可见物、氟化物。其说明2016—2020年,山西省城市生活饮用水水质检测情况总体尚可,影响合格率的主要原因是消毒剂投加设备的使用率和水源地的选择,净水工艺的完善情况有待提高,应引起相关部门的重视,多措并举才能从根本上提高山西省城市供水水质。

In order to understand the water quality of urban drinking water in Shanxi Province from 2016 to 2020 and provide reference basis for managing and improving the quality of drinking water,water samples were collected,stored,transported and tested according to GB/T5750-2006 Standard Test Methods for Drinking Water,and the results were evaluated according to GB5749-2006 Hygienic Standard for Drinking Water.From 2016 to 2020,766 samples were tested and 620 samples were qualified,with a qualified rate of 80.9%.Among the three types of domestic water sources,the highest qualified rate is the centralized water supply with surface water as the water source,which is 78.5%;The second is the centralized water supply with groundwater as the water source,which is 73.5%;The lowest is the area with mixed supply of surface water and groundwater,which is 55.6%.Unqualified items mainly include disinfectant content,disinfectant by-products,total hardness,sulfate,turbidity,visible matter to the naked eye and fluoride.It shows that from 2016 to 2020,the detection of urban drinking water quality in Shanxi Province is generally acceptable.The main reasons affecting the qualification rate are the utilization rate of disinfectant dosing equipment and the selection of water source,and the improvement of water purification process needs to be improved.Relevant departments should pay attention to it and take multiple measures at the same time to fundamentally improve the urban water supply quality in Shanxi Province.