Application of the PDMS Passive Sampling Method to Assess Bioavailability and Health Risks Associated with PAH-Contaminated Soil

Integrating bioavailability into risk assessments is an effective way to objectively assess human health risks. In this study, the of 16 polycyclic aromatic hydrocarbons (PAHs) in contaminated soil from a coking plant was evaluated using polydimethylsiloxane (PDMS) passive sampling method. The results showed that factor (BAF) each PAH, predicted PDMS fibers, ranged 0.46% 9.74%. method more stable testing PAHs with than 4 benzene rings; preliminary relationship established between BAF and log value octanol–water partition coefficient (logKow). After considering their bioavailability, carcinogenic risks (CRs) non-carcinogenic hazard quotients (HQs) associated were reduced by 1 2 orders magnitude. Only benzo(a)pyrene dibenzo(a,h)anthracene exceeded acceptable level. provides useful tool for estimating oral incorporating its exposure can help refine assessment contaminants through ingestion.