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Study on the Pollutant Discharge Amount of 15 Rivers Flowing into Taihu Lake

The pollution discharge amount of 15 rivers flowing into Taihu Lake in Suzhou, Wuxi and Changzhou of Jiangsu Province, China are examined based on 2007 general survey of pollution sources, statistical yearbook and the data from some related departments. Pollutant emission is large, dominantly from domestic source and secondarily from industrial and agricultural pollution. Comparison of discharge amount among different districts in this region shows that Binhu of Wuxi City is predominant in the domestic source; the emission from agricultural and direct industrial discharge sources in Zhangjiagang of Suzhou City is the largest; the exhaust from sewage treatment plants both in Wujin of Changzhou City and Jiangyin of Wuxi City show higher level.