ArticleJournal of xenobiotics2026
Congener-Specific Dietary Exposure and Predicted Organ-Specific Toxicity of Halogenated PAHs in Populations Living near a Coking Industrial Area.
Article in Journal of xenobiotics, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Halogenated polycyclic aromatic hydrocarbons (HPAHs) are persistent contaminants with elevated toxicity, yet dietary exposure data remain limited. Here, we systematically assessed dietary HPAHs using 87 duplicate diet samples collected from populations living in and around a coking industrial area by applying the duplicate diet method, a gold-standard approach that provides precise individual-level exposure information. Thirty-one HPAHs were detected, including seven previously unreported congeners, with mean concentrations of 62.51, 33.68, and 16.52 ng/g in the coking plant, nearby residential, and control areas, respectively. Lipid-rich foods, particularly meats, exhibited the highest HPAH burdens, and thermal processing approximately doubled concentrations in meals collected from the coking plant area. Dietary cancer risk was evaluated using a toxicity equivalency-based incremental lifetime cancer risk (ILCR) framework. Although several HPAHs occurred at low concentrations, congeners with high relative effect potency contributed disproportionately to cumulative cancer risk. Population-level risk distributions revealed that 25.8% of dietary samples exceeded the benchmark ILCR threshold of 10
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