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<p>The accumulation and diversity of organic pollutants (OPs) in soil underscore the urgent need for a systematic prioritization method. This study developed a priority organic pollutant scoring system (POPSS) and conducted prioritization of OPs in coal mine soil. The POPSS utilized a weighted integrated scoring system, considering four aspects covering concentration, toxicity, environmental behavior and management feasibility. Sixty-three (63) classes of potential OPs were listed as potential OPs list, based on government documents, investigation reports, and other materials. The OPs were then prioritized and ranked as detailed OPs list. Benzene (B), poly-chlorinated biphenyl 169 (PCB 169), total petroleum hydrocarbon (TPH), Benzo[a]pyrene (BaP), and polychlorinated dibenzo-p-dioxins and Polychlorinated dibenzofurans (PCDD/Fs) occupied the top five scores and were listed as prominent OPs list. From the perspective of OP categories, PCBs, polycyclic aromatic hydrocarbons (PAHs), TPH and PCDD/Fs emerge as noteworthy OPs due to their significantly higher ratings. The characteristics of different indicators of OPs have also been analyzed, revealing the widespread presence of PAHs in coal mine soil, the high bio-accumulation potential and persistence of PCBs, and the noteworthy toxicity of titanate compounds. The POPSS developed in this study can be applied to evaluate the priority of OPs in various types of soil environments and can be used as a reference for governmental policies and environmental legislation in various application scenarios.</p> Graphical abstract <p></p>

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Prioritization of organic contaminants in coal mine soils based on a proposed priority organic pollutant scoring system with multi-criterion weighting

  • 期刊论文

  • 发表日期：

    2025年7月25日

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  • Wenhan Liu,
  • Shuhao Zhang,
  • Wenxiu Xue,
  • Xiufeng Cao,
  • Jia Liu,
  • Xiaowei Cui,
  • Zhaojie Cui

摘要

The accumulation and diversity of organic pollutants (OPs) in soil underscore the urgent need for a systematic prioritization method. This study developed a priority organic pollutant scoring system (POPSS) and conducted prioritization of OPs in coal mine soil. The POPSS utilized a weighted integrated scoring system, considering four aspects covering concentration, toxicity, environmental behavior and management feasibility. Sixty-three (63) classes of potential OPs were listed as potential OPs list, based on government documents, investigation reports, and other materials. The OPs were then prioritized and ranked as detailed OPs list. Benzene (B), poly-chlorinated biphenyl 169 (PCB 169), total petroleum hydrocarbon (TPH), Benzo[a]pyrene (BaP), and polychlorinated dibenzo-p-dioxins and Polychlorinated dibenzofurans (PCDD/Fs) occupied the top five scores and were listed as prominent OPs list. From the perspective of OP categories, PCBs, polycyclic aromatic hydrocarbons (PAHs), TPH and PCDD/Fs emerge as noteworthy OPs due to their significantly higher ratings. The characteristics of different indicators of OPs have also been analyzed, revealing the widespread presence of PAHs in coal mine soil, the high bio-accumulation potential and persistence of PCBs, and the noteworthy toxicity of titanate compounds. The POPSS developed in this study can be applied to evaluate the priority of OPs in various types of soil environments and can be used as a reference for governmental policies and environmental legislation in various application scenarios.

Graphical abstract