2009•Water Resources ProtectionRequires access
Groundwater quality assessment of urban drinking water sources in China
Yan Wang
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Abstract
According to the groundwater quality monitoring data in drinking water source areas in the urban areas of China,the water quality security,pollution characteristics,and water quality changes were studied.The results show that, using general water quality evaluation methods,water quality in 49.48% of 1817 underground drinking water sources exceeds the water quality standard for one or more chemicals or toxic compounds.If the components controlled by natural hydrogeological characteristics are excluded and only the chemicals or indicators induced by human activities are taken into account,25.88% of the groundwater sources were polluted.