[口头报告]Karst trough control of PAHs transportation within the waterflow system of a typical river basin, Western Hubei, Central China

Karst trough control of PAHs transportation within the waterflow system of a typical river basin, Western Hubei, Central China

编号：1469 稿件编号：2988 访问权限：私有更新：2023-04-10 20:00:33 浏览：870次口头报告

报告开始：2023年05月08日 09:32 （Asia/Shanghai）

报告时间：8min

所在会议：[15C] 15C、水文地球科学 » [15C-2] 15C-2 水文地球科学

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摘要

The concentrations, spatial distribution, sources and health risks of polycyclic aromatic hydrocarbons (PAHs) in Maoping karstic valley, Central China with totally 27 surface soil samples collected in October, 2019 were investigated. The average concentrations were 42.4 ± 38.5 ng·g⁻¹, for Σ16PAHs. In general, the concentrations of 4.56~20.05 ng/g. The results of molecular diagnostic ratios and principal component analysis (PCA) indicated that PAHs in the study area were mainly originated from petroleum combustion and coal/biomass combustion emission. The incremental lifetime cancer risks (ILCRs) fluctuated from 10⁻⁷ to 10⁻⁵ for PAHs, which indicated that PAHs in the surface soils of Sixi pose a potential cancer risk to local resident.