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河岸利用结构塑造了中下长江的多环芳风险

Xionghu Gong¹, Wansu Liu¹, Zhonghua Zhao¹

¹Key Laboratory of Lake and Watershed Science for Water Security, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, 210008, China.

Journal of environmental management

|October 4, 2025

概括

长江中的多环芳 (PAH) 表明工业污染,下游和雨季发现的含量更高. 河开发显著影响PAH风险,需要可持续的管理策略.

科学领域:

环境科学环境科学
生态毒理学生态毒理学
河流生态系统河流生态系统

背景情况:

有机污染物,特别是多环芳 (PAHs),威胁着大型河流生态系统.
酸是人类工业和城市活动的可靠标记物,对污染治理至关重要.
了解PAH的时空动态对于评估和减轻河流污染至关重要.

研究的目的:

为了研究PAHs在中下长江的时空分布.
评估不同类型的PAH对水生生物群构成的生态风险.
确定PAH风险的驱动因素,重点关注河利用和工业活动.

主要方法:

溶解和悬浮颗粒物 (SPM) 结合的PAH度的分析.
生态风险评估侧重于中高分子量 (MMW/HMW) PAHs.
多变量统计分析以将PAH风险与河利用和工业因素相关联.

主要成果:

度的差异很大,在雨季,南岸和下游观察到较高的度.
已确定MMW/HMWPAHs对水生生物构成重大生态风险.
河利用,特别是工业和港口地区,是PAH风险和空间异质性的主要驱动因素.

结论:

河区划和工业配置显著影响长江的PAH污染动态和生态风险.
优化河利用和升级工业实践对于可持续的河流管理至关重要.
解决PAH污染问题需要采取整体的污染控制和资源管理方法,以保持长江的生态健康.

关键词:

水生生态系统的健康状况多环芳香碳化合物多环芳香碳化合物河岸利用的利用方式可持续发展可持续的发展长江是长江的一条河流.

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