三门峡市地表水环境质量评价及变化趋势分析

Assessment and Trend Analysis of Surface Water Environmental Quality in Sanmenxia City

摘要: 根据2016~2024年三门峡市地表水环境质量监测网及国家采测分离数据，采用水质评价和相关性分析方法，对三门峡市地表水环境质量变化趋势及当前存在的问题进行分析与评价，并提出相关建议。分析结果表明，2016~2024年三门峡市地表水环境质量逐步改善，2024年I~II类水质断面占比达到81.2%，长江流域监测断面水质始终为I类，自2022年所有监测断面水质均满足III类要求。13个参评断面中11个水质污染程度减轻，石佛断面污染程度无明显变化，北梁桥断面污染程度加重。建议持续深入开展碧水保卫战，继续深化城市面源污染防治，农业面源科学施用农药化肥，延续“三水”统筹系统治理，全面改善全市水生态环境质量。

Abstract: Based on the surface water environmental quality monitoring network and the national sampling & testing separation data of Sanmenxia City from 2016 to 2024, The water quality evaluation and correlation analysis methods were adopted to analyze and evaluate the changing trend and current problems of the surface water environmental quality in Sanmenxia City, and put forward relevant suggestions. The analysis results showed that the surface water environmental quality in Sanmenxia City had gradually improved from 2016 to 2024. In 2024, the proportion of water quality sections of Class I to II reached 81.2%. The water quality of the monitoring sections in the Yangtze River Basin had always been of Class I. Since 2022, the water quality of all monitoring sections had met the requirements of Class III. Among the 13 evaluated sections, the pollution degree of 11 sections had been reduced, the pollution degree of Shifo section had no obvious change, and the pollution degree of Beiliangqiao section had increased. It is recommended to continue wage a deeper “Battle for Clear Water”, further deepen the prevention and control of urban non-point source pollution, scientifically apply pesticides and fertilizers in agricultural, continue the systematic governance of “Three Waters” in a coordinated manner, and comprehensively improve the water ecological environment quality of the whole city.