Important But Overlooked Potential Risks of Substituted Polycyclic Aromatic Hydrocarbon: Looking Below the Tip of the Iceberg

A multi-pathway exposure assessment for polycyclic aromatic hydrocarbons among residents in the Athabasca oil sands region, Canada

“…Environmental Science: Processes & Impacts Paper estimated BaP intake is currently below TDI reference values, emissions are expected to increase in the future and BaP is only one of many potentially toxic/carcinogenic compounds emitted by oil sands operations. 67 Among the advantages of the presented approach are the ability to apply it to other organic contaminants emitted by oil sands operations, as long as emission rates, physical chemical properties and degradation and biotransformation rates can be estimated. For example, Golzadeh et al 40 noted that concentrations of alkylated PAHs exceeded those of unsubstituted PAHs in all TF samples from the Bigstone Cree Nation in Northern Alberta.…”

“…While the estimated BaP intake is currently below TDI reference values, emissions are expected to increase in the future and BaP is only one of many potentially toxic/carcinogenic compounds emitted by oil sands operations. 67…”

Novel Insights into the Promoted Accumulation of Nitro-Polycyclic Aromatic Hydrocarbons in the Roots of Legume Plants

“…Hitherto, sub-PAHs have been widely found in various environmental media such as atmospheric particulates, , indoor dust, underground water, biological samples, , and sediments . Among them, almost 90% of sub-PAHs finally sink into the surface soil and sediment . It was previously reported that the contents of sub-PAHs were in the range of 0.523–1.69 and 0.354–9.19 mg kg –1 at suburban surface soils from Xi’an, China and residential soil from Australia, respectively, and some of them even exceeded the contents of ordinary PAHs .…”