Nitrate pollution in urban runoff: A comprehensive risk assessment for human and ecological health

IF 8 1区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES Science of the Total Environment Pub Date : 2025-03-25 DOI:10.1016/j.scitotenv.2025.179184

Shahrokh Soltaninia , Mehrtash Eskandaripour , Mohammad H. Golmohammadi , Lobat Taghavi , Arvin Mehboodi

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Abstract

Nitrate pollution in urban runoff poses significant environmental and public health risks, with its impact varying across different land use types. This study investigates nitrate concentrations in runoff from residential, commercial, industrial, and traffic zones in Tehran, Iran, using Event Mean Concentration (EMC) analysis and Monte Carlo simulations to assess both ecological and human health risks. The results indicate that industrial and traffic zones exhibit the highest nitrate concentrations, reaching 58.13 mg/L, significantly exceeding regulatory thresholds. Ecological risk assessments highlight the potential for aquatic system degradation, while health risk evaluations reveal hazard index (HI) values surpassing the safe limit (HI > 4), particularly in industrial and high-traffic areas. These findings underscore the need for targeted mitigation strategies, including the implementation of green infrastructure and stricter pollution control measures, to improve urban water quality and reduce associated risks.

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城市径流中硝酸盐污染：对人类和生态健康的综合风险评估

城市径流中的硝酸盐污染构成重大的环境和公共健康风险，其影响因土地利用类型而异。本研究利用事件平均浓度（EMC）分析和蒙特卡罗模拟，调查了伊朗德黑兰住宅、商业、工业和交通区域径流中的硝酸盐浓度，以评估生态和人类健康风险。结果表明，工业和交通区域的硝酸盐浓度最高，达到58.13 mg/L，明显超过了规定的阈值；生态风险评估强调了水生系统退化的可能性，而健康风险评估显示危害指数（HI）值超过了安全限值(HI >；特别是在工业和交通繁忙的地区。这些调查结果强调需要制定有针对性的缓解战略，包括实施绿色基础设施和更严格的污染控制措施，以改善城市水质并减少相关风险。

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来源期刊

Science of the Total Environment 环境科学-环境科学

CiteScore

17.60

自引率

10.20%

发文量

8726

审稿时长

2.4 months

期刊介绍： The Science of the Total Environment is an international journal dedicated to scientific research on the environment and its interaction with humanity. It covers a wide range of disciplines and seeks to publish innovative, hypothesis-driven, and impactful research that explores the entire environment, including the atmosphere, lithosphere, hydrosphere, biosphere, and anthroposphere. The journal's updated Aims & Scope emphasizes the importance of interdisciplinary environmental research with broad impact. Priority is given to studies that advance fundamental understanding and explore the interconnectedness of multiple environmental spheres. Field studies are preferred, while laboratory experiments must demonstrate significant methodological advancements or mechanistic insights with direct relevance to the environment.