新开河入海河口的水质现状分析

根据对秦皇岛市新开河口实地采集水样 ,进行了重金属、总氮和总磷含量分析 ,发现新开河口水污染严重 ,多超过地表水IV类标准 ,主要污染物为氮、磷和油类 ,其他污染物含量均在II类标准以内 ,河口水体中氮、磷含量均达到水体富营养化危险负荷 ,可见陆源污染是秦皇岛近岸海域富营养化日趋严重、赤潮日趋增多的主要原因

Analysis on water quality of the estuary of Xinkai River

Water samples collected in the estuary of Xinkai River from field investigation have been analyzed for their concentrations of heavy metals、TN and TP. It shows that the estuary of Xinkai River has serious water pollution, most of them are exceeded standard IV of the Environmental Quality Standard for Surface Water and the main pollutants are N、P and oil; the concentration of the other pollutants are all bellow Standard II. The concentrations of N and P in estuary are all reached to the dangerous loads of eutrophication in waters, which indicates terrestrial pollution is the main reasons for the growing eutrophication and red tide of Qin Huangdao offshore.