信阳市浅层地下水质量评价

Evaluation of shallow groundwater quality in Xinyang City

为了保护信阳市浅层地下水资源环境,进一步合理开发该区浅层地下水,在对信阳市市区大量浅层地下水水样分析资料的基础上,从饮用水评价,农业灌溉用水评价,工业锅炉用水评价及综合评价等四个方面对该区浅层地下水质量进行了评价。评价结果表明:评价区内虽没有极差的Ⅴ级水,但在人口集中和用水集中的市区均为较差的Ⅳ级水,是人们生产和生活用水质量下降的主要原因;人口集中带来的生活污染是本区浅层地下水主要污染源,次要污染源为工业污染,这些理应引起高度重视,防止污染的进一步扩大。

For protection of the environment of shallow groundwater resources and to further rationally exploit the shallow groundwater in Xinyang City, based on analysis of a lot of water samples from the shallow groundwater, this paper evaluated the quality of shallow groundwater in this region by four aspects including drinking water, water for agricultural irrigation, water for industrial boiler as well as comprehensive consideration. The evaluation results showed that there are no Class Ⅴ of heavily polluted groundwater, but there are Class Ⅳ groundwater in area of large population and large water use, which is the main reason causing the decline of water quality for human production and life. Sanitary pollution caused by the concentration of population is the primary source for the shallow groundwater in this region, and the secondary source is industry pollution. These should cause people＇ s high attention to prevent further expansion of the pollution.