Extension Method of Black-Odor of the Urban River

To reflect the problem of Black-odor of the urban river for the qualitative and quantitative,Used in Extenics matter-element analysis to establish Taiyuan urban river Black-odor extension model, refering to "Surface Water Environmental Quality Standard" (GB3838-2002) and other standards, drawing on the experience of a large number of parameters to determine the urban river five Black-odor Rank.Determined by the actual characteristics of the river Black-odor river monitoring indicators, though analytic hierarchy process (AHP) determine the level of the weight of each index coefficient, reflected the lower degree of influence on the upper index.Taiyuan urban rivers in the dry season, water level monitoring period and the wet period that the mian dry season and water level monitoring period with mild and moderate Black-odor,the wet period was mainly in black and stinky critical state. Taiyuan city has been black-odor rating and level of the river black-odor are basically consistent, indicating extenics matter element analysis in the urban river black-odor application is feasible.