太原汾河公园水质现状评价

为研究太原汾河公园水体质量和污染状况,采集汾河4个河流段共20个表层水样,通过水污染指数评价法对其水温、pH值、溶解氧、浑浊度、化学需氧量、氨氮、总氮、总磷等15个理化指标进行定性定量分析。结果表明,目前太原汾河公园水质符合《地表水环境质量标准》(GB 3838-2002)劣Ⅴ类水标准,其中S1、S2、S3段主要污染指标为COD、总氮,S4段主要污染指标为总氮,水质较好的段依次为S4、S2、S3、S1;主要污染物源于生活和农业。

Evaluation of Water Quality in Taiyuan Fenhe Park

In order to study the water quality and pollution status of Fenhe Park in Taiyuan,20 surface water samples were collected from four river sections of Fenhe River to quantitatively analyze the 15 physical and chemical indexes by the water pollution index evaluation method,such as water temperature,pH value,dissolved oxygen,turbidity,chemical oxygen demand,ammonia nitrogen,total nitrogen and total phosphorus.The results showed that the water quality of Fenhe Park in Taiyuan was in accordance with the Environmental Quality Standard for Surface Water(GB 3838-2002).The main pollution indexes of S1,S2 and S3 were COD and total nitrogen,and the main pollution index of S4 was total nitrogen,the sections with better water quality were S4,S2,S3 and S1 in turn.The main pollutants were from life and agriculture.