Dust swept from coal-tar-sealed parking lot pavement

Dustpan with pavement dust containing sealcoat flecks

Detailed Description

Dust swept from parking lots sealed with coal-tar-based sealant contains concentrations of polycyclic aromatic hydrocarbons (PAHs) about 1,000 higher than dust from parking lots with other surface types (concrete, unsealed asphalt, asphalt-based sealcoat). Coal-tar-based sealcoat is predominantly used east of the Continental Divide. Read more about coal-tar-based sealcoat and PAHs here.


Image Dimensions: 2272 x 1704

Date Taken:

Location Taken: Lake in the Hills, IL, US