DOI: 10.66106/hglaa6.20250202 ISSN: 3105-7489

城市河流氮污染来源解析与防控技术路径探讨(Analysis of Nitrogen Pollution Sources in Urban Rivers and Exploration of Prevention and Control Technical Pathways)

董彬 Bin Dong
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Abstract：With the accelerated pace of urbanization and the increased intensity of industrial and agricultural production activities, the issue of nitrogen pollution in urban rivers has become increasingly prominent, posing a key constraint on regional water environmental quality and ecological health. Currently, many rivers in domestic cities exhibit total nitrogen and ammonia nitrogen concentrations that consistently exceed standards, leading to issues such as eutrophication and ecosystem degradation. The complexity of pollution sources, the inability to ascertain the contribution proportion of each source, and the lack of a systematic approach to prevention and control measures constitute major challenges in governance efforts. This paper selects typical urban rivers as the research subjects and combines hydrochemical analysis, isotopic tracing, and multivariate statistical modeling to comprehensively examine the spatial distribution characteristics of different forms of nitrogen pollution and clarify the contribution proportion of each major pollution source.

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