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1.山东农业大学林学院, 泰山森林生态系统定位研究站, 山东 泰安 271018
2.山东省高等学校;黄河流域水土保持与林草生态保育协同创新中心, 山东 泰安 271018
Received:20 November 2025,
Revised:2026-01-15,
Accepted:01 March 2026,
Online First:23 March 2026,
Published:28 August 2026
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刘增哲,刘鑫洁,董智,等.大汶河流域表层水与沉积物中多环芳烃分布、来源及风险[J].水土保持学报,2026,40(4):141-151.
Liu Zengzhe, Liu Xinjie, Dong Zhi, et al. Distribution, sources, and risk assessment of polycyclic aromatic hydrocarbons in surface water and sediments of Dawen River basin[J]. Journal of Soil and Water Conservation, 2026, 40(4):141-151.
刘增哲,刘鑫洁,董智,等.大汶河流域表层水与沉积物中多环芳烃分布、来源及风险[J].水土保持学报,2026,40(4):141-151. DOI: 10.13870/j.cnki.stbcxb.2026.04.006. CSTR: 32310.14.stbcxb.2026.04.006.
Liu Zengzhe, Liu Xinjie, Dong Zhi, et al. Distribution, sources, and risk assessment of polycyclic aromatic hydrocarbons in surface water and sediments of Dawen River basin[J]. Journal of Soil and Water Conservation, 2026, 40(4):141-151. DOI: 10.13870/j.cnki.stbcxb.2026.04.006. CSTR: 32310.14.stbcxb.2026.04.006.
目的
2
为阐明大汶河流域多环芳烃(PAHs)污染特征及其环境风险。
方法
2
采集流域干流与主要支流24个点位的表层水与沉积物样品,分析16种优先控制PAHs的含量水平、空间分布、来源贡献及生态风险。
结果
2
1) 大汶河流域水体中∑PAHs浓度为59.05~105.27 ng/L,沉积物中∑PAHs为414.90~2 931.17 ng/g。大汶河流域地表水中PAHs空间分布趋势呈瀛汶河>牟汶河>大清河和东平湖>大汶河干流>柴汶河,大汶河流域沉积物中PAHs分布区趋势呈大清河和东平湖>牟汶河>大汶河干流>瀛汶河>柴汶河。2) 通过正定矩阵因子分解模型解析,水中PAHs主要来源为生物质燃烧源、工业燃煤源、交通源和石油源,沉积物中PAHs主要来源为石油源、交通源、煤炭燃烧源、生物质燃烧源和焦炭源。3) 生态风险评价显示,流域内大部分PAHs处于中等风险水平,沉积物中Nap和Ant处于高风险水平,BaP和DahA是大汶河流域PAHs毒性风险的最主要贡献源。表明大汶河流域已受到PAHs污染,其生态风险不容忽视,基于来源解析结果,建议未来优先加强对生物质燃烧、工业燃煤及交通源等主要贡献源的排放管控。
结论
2
未来应结合流域污染特征,开展长期动态监测与源控策略评估,为区域水环境治理与生态安全保障提供科学支撑。
Objective
2
To elucidate the pollution characteristics and environmental risks of polycyclic aromatic hydrocarbons (PAHs) in the Dawen River basin.
Methods
2
Surface water and sediment samples were collected from 24 sites in the main stream and major tributaries of the basin. The concentration levels, spatial distribution, source contributions, and ecological risks of 16 priority-controlled PAHs were analyzed.
Results
2
1) The concentration of ΣPAHs in the water bodies of the Dawen River basin ranged from 59.05 ng/L to 105.27 ng/L, while that in sediments ranged from 414.90 ng/g to 2 931.17 ng/g. The spatial distribution trend of PAHs in surface water was: Yingwen River > Mouwen River > Daqing River and Dongping Lake > the main stream of Dawen River > Chaiwen River. The spatial distribution trend of PAHs in sediments was: Daqing River and Dongping Lake > Mouwen River > the main stream of Dawen River > Yingwen River > Chaiwen River. 2) Analysis using the Positive Matrix Factorization (PMF) model revealed that the main sources of PAHs in water were biomass combustion, industrial coal combustion, traffic emissions, and petroleum sources. The main sources of PAHs in sediments were petroleum sources, traffic emissions, coal combustion, biomass combustion, and coke sources. 3) Ecological risk assessment indicated that most PAHs in the basin were at a moderate risk level, while Nap and Ant in sediments were at a high-risk level. BaP and DahA were the primary contributors to the toxic risk of PAHs in the Dawen River basin. The results indicated that the Dawen River basin had been contaminated by polycyclic aromatic hydrocarbons (PAHs), and its ecological risks could not be ignored. Based on the source apportionment results, it is recommended to prioritize the strengthening of emission controls on major contributing sources such as biomass burning, industrial coal combustion, and traffic emissions.
Conclusion
2
Future work should integrate the pollution characteristics of the basin, conduct long-term dynamic monitoring and source control strategy evaluation, and provide scientific support for regional water environment management and ecological security.
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