Research on Ordos City's Water Environment Quality Assessment and Water Function Area Management

Recently,Water environment quality assessment has become a key word in water environment quality assessment and water function area management.Ordos' s 16typical rivers water quality is analyzed in this research.The results show that the main factors in influencing water quality are dissolved oxygen,permanganate index,chemical oxygen demand,ammonia nitrogen,total phosphorus and total nitrogen based on the single factor water quality identification index.Analytical results are assessed on comprehensive identification index method,two rivers water quality is not up to the water standard,the others meet corresponding standards.