宝鸡主要河流水环境质量综合评价

Assessment for water environmental quality of main rivers in Baoji

为了解宝鸡市近年来的水环境污染状况,以嘉陵江、渭河及渭河的三条主要支流清姜河、石坝河、金陵河五条河流为研究对象,根据十五个监测断面的数据,采用综合水质标识指数法对五条河流水质进行评价。通过评价得出:宝鸡地区地表水水质良好,几种污染物指标中有机物及氨氮的污染较重;宝鸡河流从上游至下游,从支流到主流污染逐级加重,各监测断面中虢镇桥和蔡家坡桥断面污染最重,综合水质标识指标最高达到了4.200。

Inorder to understand the water pollution situations in Baoji in recent years,taking the five rivers for the research object such as Jialingjiang,Weihe and three main tributaries of Weihe as QingJiang,Shibahe,Jinlinghe,according to the data from 15 monitoring sections,the comprehensive water quality identification index method was used to evaluate the water quality of fie rivers.The evaluation conclusions was that： Surface water quality was good in Baoji region.Organic and ammonia nitrogen pollution was more serious in several pollution indicators;river pollution in Baoji is geting serious from upstream to downstream,from tributaries to the mainstream. In all monitoring sections,Guozhen Bridge and the Caijiapo Bridge sections was the most serious,the comprehensive water quality identification index was up to 4.200.