六股河水质污染特征分析

本文通过对不同时段和不同监测点环境监测数据的对比分析，研究了六股河水质污染特征。结果发现：2004～2010年六股河上游和中游符合Ⅱ-Ⅲ类标准，水质保持良好，但部分年份入海口处水质下降，主要污染指标为高锰酸盐指数和石油类。水期监测结果反映了六股河水质主要污染特征：入海口处个别年份丰水期和平水期主要污染物浓度突升是造成水质下降的主要原因。高流量状态下水质下降反映出受面源污染影响特征。入海口小渔场断面污染物入海通量估算结果表明：高锰酸盐指数和石油类入海量总体呈下降趋势，氨氮入海量呈先下降后急剧升高趋势。

Analysis of Water Quality Characteristics in Liu Gu River

The temporal and spatial characteristics of surthce water quality in Litlguhe river were analyzed based on environmental measurement data. It was found that the water quality of the upstream and midstream was good, but the downstream was worse, with the increasing of the concentrations of CODMn, and oil. The seasonal environmental measurement data showed that the water quality characteristics in Liuguhe river got worse during the period of large flux, which carried the pollution nf breed livestock and people living. The pollutant fluxes flowing into Bohai Bay were computed. The pollutant fluxes of CODMn and oil were decreasing, but the pollutant fluxes of NH3-N were increasing.