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Determination of the occurrences, distribution, and health impacts of organohalogenated contamination of agricultural soils from Wuhan, Central China

Year: 2025
Type: article
Abstract: Organohalogenated compounds are among the persistent and ubiquitous organic pollutants in the environment. This study aimed to investigate the concentration, ecological, and human health impacts of persistent organohalogenated compounds in soil from Huangpi, Wuhan. Eighteen soil samples were collected from 0 to 10 cm and 10–20 cm depths. The quantification of seven indicator polychlorinated biphenyls (PCBs) and seven polybrominated diphenyl ethers (PBDEs) was performed using an Agilent gas chromatograph coupled with an electron capture detector. The obtained concentrations of Σ 7 PCBs ranged from 0.00 to 54.12 ng g −1 dry weight (dw) in the 0−10 cm depth and from 0.00 to 35.35 ng g −1 dw in the 10−20 cm depth, with PCB-28 and PCB-52 being the frequently detected congeners. The Σ 7 PBDEs ranged from 0.00 to 34.88 ng g −1 dw in the 0−10 cm depth and from 0.00 to 32.43 ng g −1 dw in the 10−20 cm depth, with PBDE-47 and PBDE-28 being the most commonly detected congeners. Residues of the target compounds were detected in the study area. The concentrations of all the congeners considered in this study were below the ceiling ecological quality guideline limits. The estimated carcinogenic and non-carcinogenic health impact values indicated that the current levels of organohalogenated residues in the soil pose a negligible health risk to residents.
Source: Heliyon
DOI: 10.1016/j.heliyon.2025.e43110
Language: English
Open Access status: gold
Estimated APC paid: $2,270
OpenAlex ID: W4408180726
FWCI:
Cites: 72
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Related to: 10