USGS PAH contaminants studies could be among budget cut victims



Traffic congestion, smog, and loss of open space and wildlife habitat are among the unwelcome effects of sprawl development in many urban areas in the United States. However, another problem that the typical commuter may not be as aware of is the increases in polycyclic aromatic hydrocarbons (PAHs) that degrade air and water quality and that may be linked to urban sprawl and traffic on the roadways.