During summer 2015,water quality of 19 rivers in urban area in Tianjin were evaluated with the single factor evaluation method,the single pollution index method,the comprehensive pollution index method and the comprehensive water quality identification index method.Volatile organic compounds were analyzed using static headspace and gas chromatography-mass spectrometry (HS/GC/ MS).The results showed that 53％ of the rivers were in compliance with the standard.In these rivers,both ammonia nitrogen and total phosphorus had greatly exceeded the standard limits,and the ratio of pollution was the highest;the high organic pollution index and the eutrophication index of heavily polluted rivers was attributed to the city domestic and industrial sewage;heavily polluted rivers had several odors such as acetone,chloroform,limonene.Rivers with same water quality grade showed different pollution situation.
Tianjin central urban areariveranalysis of water qualitywater quality evaluation
NETL
NSTL
维普
万方数据
