摘要
基于蟒河在济源市境内3个监测断面的水质监测数据,分析了污染物的变化情况和沿程水质变化特征。结果表明:曲阳湖(入境)断面水质在2011~2013年为劣Ⅴ类,2014~2018年保持在Ⅱ类,2019年提升至Ⅰ类;赵礼庄(城市河流)断面水质2011~2017年在Ⅲ~Ⅴ类之间变化,2017年之后由Ⅴ类提升至Ⅲ类;南官庄(出境)断面2011~2017年水质为劣Ⅴ类,2018~2019年为Ⅳ类;南官庄断面水质最差,COD、氨氮和总磷的浓度平均值分别为21 mg/L、2.3 mg/L和0.4 mg/L。
Based on the water quality data of 3 monitoring sections of Manghe River in Jiyuan,the changes of the characteristics of water quality along the river and the changes of pollutants were analyzed.The results showed that the water quality of the Quyang Lake(inbound)section was worse than class Ⅴ from 2011 to 2013,maintained in class Ⅱ from 2014 to 2018,and upgraded to class Ⅰ in 2019.The water quality of Zhaolizhuang(urban river)section fluctuated between class Ⅲ and Ⅴ from 2011 to 2017,and increased from class Ⅴ to Ⅲ after 2017.The water quality of the Nanguanzhuang(outbound)section was worse than class Ⅴ from 2011 to 2017,but raised to Ⅳ from 2018 to 2019.The water quality of the Nanguanzhuang section was the worst among all the monitoring sections.The average concentrations of COD,ammonia nitrogen and TP were 21 mg/L,2.3 mg/L and 0.4 mg/L,respectively.
作者
李利霞
王亮
陈芙蓉
贾靖
LI Lixia;WANG Liang;CHEN Furong;JIA Jing(JiyuanEcological Environment Monitoring Center of Henan Province,Jiyuan 459000,China;Comprehensive Administrative Law Enforcement Detachment of Ecological Environment in Jiyuan Industrial and Urban Integration Demonstration Area,Jiyuan 459000,China)
出处
《能源环境保护》
2020年第5期100-103,共4页
Energy Environmental Protection
