辽宁省辽河盘锦段渔业性能和水质现状评价

Evaluation of fishery performance and water quality in Panjin section of Liaohe River in Liaoning province

辽河是辽宁省重要的渔业水域资源。2013—2016年辽宁省淡水渔业环境监测站对该流域盘锦段共进行了4年的采样监测调查。结果显示,辽河盘锦段各段面主要污染物因子为高锰酸钾指数和总氮,根据《地表水环境质量标准》GB 3838—2002和《渔业水质标准》GB11607—89进行水质评价,2013年高锰酸钾指数和总氮都为Ⅳ类水质,而2014—2016年高锰酸钾指数和总氮分别为Ⅴ类和Ⅳ类水质;水温、溶解氧、透明度、pH、总磷、氨氮、石油类、挥发酚、汞、铜、锌、铅、铬等指标均不超标。

The fishery productivity and water quality of Panjin section of Liaohe River from 2013 to 2016 were evaluated for 4 times.The results showed that the main pollution factors were permanganate index and total nitrogen.According to Surface Water Environment Quality Standard（GB3838—2002） and Fishery Water Quality Standard（GB11607—89）,the water with such permanganate index and total nitrogen in 2013 belonged to the class Ⅳ water quality,and the water form 2014 to 2016 belonged to class Ⅴand the class Ⅳwater quality standard,respectively.The indexes including water temperature,dissolved oxygen,transparency,PH value,total phosphorus,ammonia nitrogen,petroleum,volatile phenol,mercury,copper,zinc,lead,chromium were all with the limits specified in Surface Water Environment Quality Standard（GB3838—2002） and Fishery Water Quality Standard（GB11607—89）.