河北省地下水饮用水源地水质变化分析

为了科学分析近年来河北省地下水饮用水源地的水质状况，以河北省42个地下水饮用水源地2000、2018年的24项指标作为评价对象，结合单一指标评价法与综合评价法分析水质状况，并进行原因分析。结果表明：相较于2000年，2018年19项水质指标污染程度均减轻，氟化物污染程度较重，新增4项超标水质指标；安全水源地比例增加了11.9%，且极差水源地消失，但优良水源地也消失；水源地保护区内耕地面积减小，林地面积增大，建设用地面积增大，农业污染面积减小，工业和生活污染面积增大；污染物主要来源于农业化肥、工业废水和生活垃圾污染3个方面，且地下水超采也会对水质造成影响。研究结果可以对河北省地下水饮用水源地管理和保护提供科学依据和实践支撑。

Analysis of groundwater quality change of drinking water sources in Hebei Province

In order to analyze the water quality of groundwater drinking water sources in Hebei Province in recent years, taking 24 indexes of 42 groundwater drinking water sources in Hebei Province in 2000 and 2018 as the evaluation objects, the water quality situation and the contributing factors were analyzed using single index evaluation method and comprehensive evaluation method. The results showed that compared with 2000, the pollution level of 19 water quality indicators was reduced in 2018, fluoride pollution degree was serious, and four new water quality indicators exceeding the standard were added, The safe water sources creased by 11.9%, but the good water sources disappeared along with the extremely poor ones. In the protection area, the cultivated land area decreased and the forest land area increased, the construction land area increased, the agricultural pollution area decreased, and the industrial and domestic pollution areas increased. The pollutants mainly come from agricultural fertilizer, industrial wastewater and domestic waste, and groundwater overdraft will also affect the water quality. The research results can provide scientific guidance and practical support for the management and protection of groundwater drinking water sources in Hebei Province.