Vehicles are a source of many pollutants in storm water. Oil, antifreeze, and other fluids often leak from cars onto parking lots or are spilled during maintenance. Normal automobile use also creates copper and other heavy metal dust, which settles onto surfaces wherever vehicle exhaust exists.

Stormwater runoff carries both metal dust and toxic fluids to streams and rivers, where they can eventually become concentrated enough to disrupt aquatic ecosystems.
Vehicle Leakage