秦皇岛市主要入海河流污染物浓度及入海通量分析
Analysis on the Pollutant Concentration and Sea-Enter Flux from the Main Rivers Flowing into the Sea in Qinhuangdao City
张艳军1
作者信息
- 1. 秦皇岛市环境监控中心,河北 秦皇岛 066000
- 折叠
摘要
入海河流是陆源污染物入海的重要途径.石河、洋河、汤河、戴河和饮马河是秦皇岛市的 5 条主要入海河流,其河口均布设监测断面.本文结合 2018-2020 年河口监测断面数据,分析 5 条入海河流的污染物浓度月际变化和入海通量年际变化.监测结果显示,2020 年,6-8 月氨氮浓度整体略高于其他月份;枯水期总磷(Total Phosphorus,TP)浓度整体小于丰水期,枯水期总氮(Total Nitrogen,TN)浓度总体大于丰水期.从污染物入海通量来看,TN和化学需氧量(CODCr)是排放量偏高的入海污染物.在 5 条入海河流中,洋河贡献 59.7%的CODCr、48.5%的TP、54.6%的TN和 42.1%的氟化物.河流水量是影响污染物总量的主要因素.
Abstract
Rivers flowing into the sea are an important pathway for land-based pollutants to enter the sea.Shihe River,Yanghe River,Tanghe River,Daihe River,and Yinma River are the five main rivers that flow into the sea in Qinhuangdao City,and their estuaries are all equipped with monitoring sections.Based on the monitoring section data of estuaries from 2018 to 2020,this paper analyzes the monthly variation of pollutant concentration and annual variation of sea-enter flux in five rivers flowing into the sea.The monitoring results show that from June to August 2020,the overall ammonia nitrogen concentration was slightly higher than other months;the overall concentration of Total Phosphorus(TP)during the dry season is lower than that during the wet season,while the overall concentration of Total Nitrogen(TN)during the dry season is higher than that during the wet season.From the perspective of pollutant flux into the sea,TN and chemical oxygen demand(CODCr)are the pollutants with high emissions into the sea.Among the 5 rivers that flow into the sea,Yanghe River contributes 59.7%of CODCr,48.5%of TP,54.6%of TN,and 42.1%of fluoride.The water volume of rivers is the main factor affecting the total amount of pollutants.
关键词
入海河流/污染物/浓度/入海通量/秦皇岛市Key words
rivers flowing into the sea/pollutants/concentration/sea-enter flux/Qinhuangdao City引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据