2007年环胶州湾入海河流污染状况和污染物入海通量分析

Contaminative Conditions Analysis of Main Rivers Flowing into Jiaozhou Bay in 2007

根据2007年入胶州湾的7条主要河流入海断面水体污染物调查资料,分析了各条河流的水质状况,并计算了COD、氨氮、总磷和油类等污染物的入海通量。结果表明,7条河流入海断面的水质均属于劣V类,而丰水期水质较好,枯水期和平水期水质相对较差;各河流的首要污染物不同,其中,板桥坊河为COD,海泊河、李村河与楼山河为氨氮,墨水河与镰湾河为油类,大沽河为总磷。从入海通量来看,大沽河、海泊河和墨水河的COD排海通量较大,约占7条河流排海总量70%左右;李村河、海泊河与墨水河的氨氮排海通量较大,约占7条河流排海总量的70%以上,对于总磷,大沽河排放量最大,约占7条河流排海总量的70%以上,对于油类,墨水河、李村河与大沽河排放量较大,占7条河流排海总量的70%以上。最后在分析各河流污染物来源的基础上,初步提出了防治水污染的相应对策和建议。

Based on the investigation for the seven main rivers flowing into Jiaozhou Bay, the pollution condition of each river was analyzed, as well as the annual discharge loads of COD, ammonian_nitrogen（ NH4 -N）, TP（ total phosporus）and oil were calculated. The results showed that water quality of all the seven rivers was worse than the V class standard, and the water quality in wet season was better than that in normal and dry seasons. The key pollutant（ KP）of Haibo River, Licun River and Loushan River was NH4 - N ; The KP of Moshui river and Lianwan river was oil; however, the KP of Banqiaofang and Dago River was COD and TP respectively. The discharge load（DL）of COD from Dagu River, Haibe River and Moshui River take the percentage of 70% in total load（TL）, the DLs of NH4 - N from Licun River, Haibo River and Moshui River take the percentage of more than 70% in TL, the DLs of TP from Dagu River take the percentage of more than 70% in TL, while the Dis ofoil from Moshui River, Licun River and Dagu River take the percentage of more than 70% in TL. According to the features of the pollution sources in each river, some countermeasures and suggestions were put forward for water pollution control.