Toxins in coal-tar-based sealcoats in parking lots may be the culprit in contaminated house dust, according to a USGS study.
PAHs - or polycyclic aromatic hydrocarbons
PAHs are large molecules found in oil, coal and tar deposits, and can have toxic effects. It's long been known that PAHs are often found in house dust; however, the specific sources of these PAHs are largely undetermined.
Researchers found that dust from indoor areas near parking lots with coal-tar-based sealcoat had substantially elevated concentrations of PAHs.
SOURCE: USGS at the Society of Environmental Toxicology and Chemistry
PAHs - or polycyclic aromatic hydrocarbons
PAHs are large molecules found in oil, coal and tar deposits, and can have toxic effects. It's long been known that PAHs are often found in house dust; however, the specific sources of these PAHs are largely undetermined.
Researchers found that dust from indoor areas near parking lots with coal-tar-based sealcoat had substantially elevated concentrations of PAHs.
SOURCE: USGS at the Society of Environmental Toxicology and Chemistry
