青岛市地下水源地水质评价及污染原因分析

Water quality evaluation and reasons analysis of pollution for groundwater sources in Qingdao

在对青岛市18处地下饮用水源地调查资料研究的基础上,分析了地下水源地的水质状况。结果显示,有9处水源地水质达到地下水Ⅲ类标准,9处水源地水质超出地下水Ⅲ类标准,表明了青岛市地下饮用水源地的污染已经相当严重。调查水源地普遍存在硝酸盐、总硬度、溶解性总固体的污染,部分水源地存在氟化物超标区和海水入侵区。结合调查数据和水源地的情况,查明了水源地污染的原因主要是农业、工业及农村非点源污染所致。

Based on the investigation for the 18 groundwater sources, the water quality of the groundwater sources have been analyzed. The results showed that 9 of the groundwater sources were reached Ⅲ class standard, and other 9 of the groundwater sources were exceed the Ⅲ class standard. It indicated that the pollution of groundwater is more and more serious in Qingdao City. The main pollution factors were nitrate, total hardness and TDS. There were some fluoride pollution areas and some seawater intrusion areas. The agriculture, industry and rural non-point pollution were the main pollution reasons.