上海市闸北区城市河道水质演变规律和新出现的问题

通过对十年来上海市闸北区范围内彭越浦、走马塘和西泗塘三条河道上的四个监测断面的水质监测数据,选取高锰酸盐指数、化学需氧量、生化需氧量、氨氮、石油类、总磷和挥发酚七项指标,运用水质综合指数法探讨了水质变化趋势、时空变化特征、主要污染因子及其变化趋势,在发现水质显著改善的同时,对新出现的问题进行了探讨。

Variation and Problems of Water Environmental Quality in Zhabei District

The water quality data throughout the past decade from four sampling sites in three main rivers,Pengyuepu（PYP）,Zoumatang（ZMT） and Xisitang（XST）,were analyzed.Seven parameters including,permanganate index,chemical oxygen demand,biochemical oxygen demand,NH3-N,petroleum oil,total phosphorus and volatile phenols were selected.Water quality integrate index was employed to study the temporal and spatial variation and to determine the primary pollutant.The improvement of water quality was found,and the new problems were discussed.