【摘要】 本文以秦皇岛境内八条河流为主要研究对象,对河流20个断面的监测数据年平均值(2010-2015年)进行分析,运用在单因子水质标识指数的基础上建立综合水质标识指数对河流不同地段进行污染风险评估。评估结果显示,秦皇岛市境内河流首要污染因子为化学需氧量。从时空变化来看,近年来秦皇岛市水质整体呈现逐渐改善的趋势,部分河流断面显著改善,主要污染物浓度大幅度下降,但同时也存在超标河流,主要为饮马河以及人造河。该研究可为秦皇岛地区入海污染物总量控制、海岸带环境治理以及水资源管理提供决策依据。更多还原

【Abstract】 This paper takes eight rivers in Qinhuangdao as the main research object, and analyzes the annual average monitoring data of 20 cross-sections from 2010 to 2015. By establishing comprehensive water quality index based on the single-factor water quality index, this paper conducts a pollution risk assessment of different river sections. Results show that the primary pollution factor of the river in Qinhuangdao is COD. Judging from the results of evaluation of spatio-temporal changes, the overall water quality of Qinhuangdao has gradually improved in recent years. Some cross sections have been significantly improved, and the concentration of major pollutants has dropped significantly. At the same time, there are rivers that exceed the standard, which are mainly the Yinma River and the Renzao River. The study will help control the total amount of pollutants entering the sea and governance coastal environment in the Qinhuangdao area, which may provide a decision-making basis for the water resources management department.更多还原