Analysis of pollutant compositions and pollution sources of groundwater in urban area and suburbs of Zhengzhou
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Abstract:
Clarification of pollutant compositions and pollution sources of groundwater in different areas can provide solid foundation for formulating specific groundwater resources management system and improving water quality.Because of significant differences in economic development level and groundwater resources development/utilization pattern,degree of water pollution and pollution compositions may vary greatly between urban areas and suburbs.Taking Jinshui District and Gongyi County of Zhengzhou for case study,the status of groundwater pollution in two regions is evaluated by applying principal component analysis.The results show that nitrate is the dominant pollutant in Gongyi,while sulfate and ammonia nitrogen are the dominant pollutants in Jinshui,resulting from more discharges from industrial and mining enterprises and farmlands in Gongyi,and more domestic sewages in Jinshui.In view of the different groundwater pollution statuses and sources in two regions,specific suggestions on protection and management of the groundwater resources are put forward.
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