Testing Coal-Tar Sealcoats for Toxic PAH Emissions
![Image: Testing Coal-Tar Sealcoats for Toxic PAH Emissions](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/ParkingLot125-1.jpg?itok=bbUiwoQc)
Detailed Description
USGS scientists prepare a sampler used to measure emission of polycyclic aromatic carbons (PAHs) into the air.
Sources/Usage
Public Domain.
USGS scientists prepare a sampler used to measure emission of polycyclic aromatic carbons (PAHs) into the air.
Public Domain.