{"title":"The source-specific health risk and biological effect assessment of PAHs in Mactra veneriformis from the Bohai Sea and Yellow Sea","authors":"Zeyuan Li, Ruicheng Qi, Jingjing Miao, Yufen Li, Qiaoqiao Wang, Fengjun Lei, Manni Wu, Yuanjing Chen, Luqing Pan","doi":"10.1016/j.envpol.2025.125900","DOIUrl":null,"url":null,"abstract":"Source-specific risk assessment has been widely used to analyze the source of pollution risk instead of pollutant content for more accurate control of pollution. However, due to limitations in data type, assessment of source-specific biological effect has not been reported, which is highly significant for organism protection. This study conducted a comprehensive assessment of the health risk and biological effect of polycyclic aromatic hydrocarbons (PAHs) bioaccumulated in the clam <em>Mactra veneriformis</em> from two typical bays in China. PAH levels ranged from 122.68-367.21 ng/g d.w. (dry weight), indicating a moderate level of pollution. Incremental lifetime cancer risk (ILCR) assessment revealed low cancer risks associated with clam consumption. However, the integrated biomarker response (IBR) analysis indicated higher biological stress in Laizhou Bay compared to Haizhou Bay. Positive matrix factorization (PMF) identified traffic emissions (post combustion products), coal combustion, petroleum products released without combustion, and biomass combustion as sources of PAHs. A novel approach that integrates partial least squares regression (PLSR) with IBR and PMF enable source-specific biological effect assessment possible, along with PMF-ILCR, the results showed traffic emissions as the primary source of health risks, while petroleum was the primary source of biological effects. This study emphasizes the importance of source-specific risk assessment for developing targeted pollution control strategies especially source-specific biological effect, highlighting that the priority of PAHs pollution source control for typical bays in the Bohai Sea and the Yellow Sea should be: Petroleum > Traffic > Coal > Biomass.","PeriodicalId":311,"journal":{"name":"Environmental Pollution","volume":"33 1","pages":""},"PeriodicalIF":7.6000,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Environmental Pollution","FirstCategoryId":"93","ListUrlMain":"https://doi.org/10.1016/j.envpol.2025.125900","RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENVIRONMENTAL SCIENCES","Score":null,"Total":0}
引用次数: 0
Abstract
Source-specific risk assessment has been widely used to analyze the source of pollution risk instead of pollutant content for more accurate control of pollution. However, due to limitations in data type, assessment of source-specific biological effect has not been reported, which is highly significant for organism protection. This study conducted a comprehensive assessment of the health risk and biological effect of polycyclic aromatic hydrocarbons (PAHs) bioaccumulated in the clam Mactra veneriformis from two typical bays in China. PAH levels ranged from 122.68-367.21 ng/g d.w. (dry weight), indicating a moderate level of pollution. Incremental lifetime cancer risk (ILCR) assessment revealed low cancer risks associated with clam consumption. However, the integrated biomarker response (IBR) analysis indicated higher biological stress in Laizhou Bay compared to Haizhou Bay. Positive matrix factorization (PMF) identified traffic emissions (post combustion products), coal combustion, petroleum products released without combustion, and biomass combustion as sources of PAHs. A novel approach that integrates partial least squares regression (PLSR) with IBR and PMF enable source-specific biological effect assessment possible, along with PMF-ILCR, the results showed traffic emissions as the primary source of health risks, while petroleum was the primary source of biological effects. This study emphasizes the importance of source-specific risk assessment for developing targeted pollution control strategies especially source-specific biological effect, highlighting that the priority of PAHs pollution source control for typical bays in the Bohai Sea and the Yellow Sea should be: Petroleum > Traffic > Coal > Biomass.
期刊介绍：
Environmental Pollution is an international peer-reviewed journal that publishes high-quality research papers and review articles covering all aspects of environmental pollution and its impacts on ecosystems and human health.
Subject areas include, but are not limited to:
• Sources and occurrences of pollutants that are clearly defined and measured in environmental compartments, food and food-related items, and human bodies;
• Interlinks between contaminant exposure and biological, ecological, and human health effects, including those of climate change;
• Contaminants of emerging concerns (including but not limited to antibiotic resistant microorganisms or genes, microplastics/nanoplastics, electronic wastes, light, and noise) and/or their biological, ecological, or human health effects;
• Laboratory and field studies on the remediation/mitigation of environmental pollution via new techniques and with clear links to biological, ecological, or human health effects;
• Modeling of pollution processes, patterns, or trends that is of clear environmental and/or human health interest;
• New techniques that measure and examine environmental occurrences, transport, behavior, and effects of pollutants within the environment or the laboratory, provided that they can be clearly used to address problems within regional or global environmental compartments.
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