Worn sealcoat in Milwaukee, WI
By Water Resources Mission Area
June 2004 (approx.)
Detailed Description
Coal-tar-based sealcoat, a potent source of polycyclic aromatic hydrocarbons (PAHs), abrades into fine particles with time. Here, runoff containing abraded particles goes down a storm drain and is delivered to a nearby lake. Read more about coal-tar-based sealcoat and PAHs here.
Sources/Usage
Public Domain.