摘要
应用模糊综合评价方法,选取浓度和毒理性双权重对洞庭湖区浅层地下水进行了环境质量评价,认为湖区浅层地下水主要遭受总铁、锰、pH值、氨氮、亚硝酸盐氮、硝酸盐氮、铍、化学耗氧量等污染,基本上没有遭受重金属污染;湖区浅层地下水水质整体较好,以优质水为主,占39.37%,合格水占26.04%;不合格水(较差水)占34.59%。在此基础上,根据不同区域水质的好坏,指出了湖区新农村建设供水方向,并提出了若干安全供水的措施以供决策参考。
The main contaminates concentration and toxicity of shallow groundwater in Dongting Lake area (DLA) is evaluated by using fuzzy comprehensive evaluation method. The results shows that the main contaminates are total iron, manganese, pH, ammonian, nitrite nitrogen, nitrate nitrogen, beryllium and chemical oxygen demand (COD), however, the heavy metal pollution is not found. In statistics, the quality of whole shallow groundwater in DLA is not too bad: high quality and qualified water account for 39.37% and 26.04%, respectively, while the unqualified water only accounts for 34.59%. The water supply for new rural construction is designed by considering the different water quality in different area in DLA, and some suggestion for security water supply are provided.
出处
《华南地质与矿产》
CAS
2009年第4期48-53,共6页
Geology and Mineral Resources of South China
基金
湖南省地勘局科研项目"洞庭湖区新农村建设浅层地下水质量及安全供水研究"(编号:2007002)
关键词
地下水资源
浅层地下水质量
安全供水
洞庭湖区
groundwater resources
shallow groundwater quality
security of water supply
Dongting Lake area