Assessment and analysis of water quality in Weihe River in Baoji section

Weihe River runs across the middle of Baoji City, it's water has been polluted more or less in recent years. Though monitouring the water quality and an analysis of the results during 1998～2002 , the assessment of the present water quality and its pollution within the area of Baoji are analyzed according to the prehensive pollution indexes ,the result indicated that the part of between Shengli Bridge in Baoji City and Wolong Temple Bridge was seriously contaminated. The pollutants are chiefly ammonia nitrogen,CODcr,petoleum, and suspended matter.