洛阳市伊川县地下水质量综合评价分析及开发利用建议

Comprehensive evaluation and analysis of groundwater quality in Yichuan county Luoyang city

地下水监测不仅仅为地下水质量研究提供科学数据,而且为地下水科学合理开发利用、保护地下水资源提供重要的理论依据。本文基于洛阳市伊川县地下水监测数据,利用单因子评价法、内梅罗综合指数法以及根据生活饮用水卫生标准对伊川县地下水质量进行综合评价和分析。研究表明,调查区内不存在优良级水,较差级及以下类别水居多,占调查区域的60%及以上。水体存在的主要问题是总硬度、溶解性总固体、硫酸盐和硝酸盐氮的含量较高,超出Ⅲ类水级别比例较高。依据主要超标因素数据来看,硝酸盐氮的含量普遍超过生活饮用水卫生标准,导致大部分监测点地下水不适宜饮用。

Groundwater monitoring not only provides scientific data for groundwater quality research,but also offers the theoretical foundation for rational exploitation and utilization of groundwater and the protection of groundwater resources.Based on the groundwater monitoring data of Yichuan County,Luoyang City,this paper comprehensively evaluates and analyzes the groundwater quality of Yichuan County by using single factor evaluation method and Nemero comprehensive index method and according to the standards for drinking water quality.The research shows that there is no excellent water in the survey area,and the water of poor grade and below is in the majority,accounting for over 60%of the survey area.The major problem of groundwater is that the content of total hardness,total dissolved solids,sulfate and nitrate nitrogen is high,and the proportion of water beyond class III is high.According to the data of major superelement,the content of nitrate nitrogen generally exceeds the sanitary standard of drinking water,resulting in the groundwater of most monitoring points not suitable for drinking.