Analysis of Water Quality Evolution and Pollutant Characteristics of Rivers in Heze
In recent years,The water quality of the main rivers in Heze has been improved significantly.Through the evaluation and analysis of the water quality of the main rivers in Heze Municipality in the past 10 years,the pollution substances in the main rivers have several parameters exceeding the standard 10 years ago and changed to individual parameters at present,and the multiple of exceeding rate has also been decreased.At present,the annual water quality of most major rivers has met the Class IV standard of"Surface Water Environmental Quality Standard".But,the main pollutants affecting river water quality are chemical oxygen demand influenced by human activities and fluoride influenced by non-human factors.The water quality of some single rivers still cannot meet the Class V water standards,and there is a long way in environmental protection and improvement.
Water resources qualityWater quality assessmentMultiple of exceedingPollutant characteristics
NETL
NSTL
万方数据
