摘要
根据1995—2010年渭河宝鸡—咸阳6个断面水质监测资料,对主要污染因子DO,BOD5,COD Mn,NH3-N进行了分析.结果表明:宝鸡段虢镇桥和咸阳段兴平NH3-N污染较为严重,咸阳铁桥COD Mn污染最严重,远远高于宝鸡段;1995年之后渭河水质受到严重污染,其中以1995年和1996年最为严重;2002—2004年水质污染程度仅次于1996年,2004年之后水质有明显改善趋势,特别在2008年之后.分析其污染产生的主要原因,提出了相应的控制对策.
Based on the 15-year mean monitoring data along the Wei River in Shaanxi Province,the main pollution factors DO, BOD5, CODM. NH3-N are studied that the NH3-N pollution was very serious in Baoji by the method of classified assessment. The results showed Guo Town bridge and Xingping section, and the CODMn pollution was most serious in Xianyang section, which was much higher than Baoji. The serious pollution occurred in 1995, 1996,2002-2004. The trend of water quality has improved significantly after 2004, especially after 2008. The pollution reasons are analyzed, and some corresponding countermeasures are put forward.
出处
《河南科学》
2013年第8期1271-1274,共4页
Henan Science
基金
陕西省教育厅专项科研计划项目(12JK0653)
陕西理工学院校级科研项目(SLGKY12-05)
关键词
渭河
水质评价
控制对策
Wei River
water quality assessment
countermeasures
