Oil is a toxic substance and has harmful effects on both the natural and cultural resources in national parks. Most people think of oil spills occurring in oceans and coasts but spills happen inland as well from things like pipelines, trains, and oil tankers. The longer the oil is left in the ecosystem the more damage it can do, making a quick clean up important. Unfortunately, oil is difficult to recover once it is spilled because so much of it remains in the ecosystem and can have long-term effects on natural and cultural resources. When in water:
One drop of oil will cover the area of a two-car garage.
One pint of oil can cover one acre of water surface.
One quart of oil can cover two acres (or nearly 3 football fields) of water surface.