【摘要】 四湖地区河网密布,各种水体之间交换频繁,地下水埋深浅,潜水和承压水是农村地区重要的生活水源,其水质状况直接影响居民健康和生活质量.在长期观测四湖地区地下水位的基础上于2012年6月采集四湖地区地表和地下水样,采用国际F值法对地下水进行综合评价,并分析主要超标指标的浓度空间分布.分析结果表明:四湖地区地下水水质总体较差,潜水水质略好于承压水;承压水氨氮、铁和高锰酸盐指数超标严重;位于长江沿岸的潜水亚硝酸盐氮、硝酸盐氮和总氮含量较高.水文地质要素和农业污染对地下水水质有较大影响.更多还原

【Abstract】 Sihu Area is covered with many rivers and lakes which interact with each other frequently.The groundwater table is low and the unconfined and confined water is a vital source of domestic water,even the drinking water of the rural areas.Therefore,the quality of the groundwater will affect resident’s health and living standard.On the basis of long-term observation on the groundwater level in Sihu Area,we collected surface water and groundwater samples in June 2012,and then made a comprehensive evaluation on the groundwater quality by using F-value method and analyzed the spatial pattern of the contents of the main standard-exceeding indicators.The results indicate that:1)the groundwater is of poor quality and the quality of the unconfined water is slightly better than that of the confined water;2)the NH4-N,Fe and permanganate index of the confined water exceed the standard seriously;3)the contents of the NO2-N,NO3-N and TN are relatively high in the unconfined water along the Yangtze River.The hydrogeology and agricultural pollution greatly influence the groundwater quality.更多还原