Air pollution seems to be the big focus of the type of pollution that vehicles cause. But due to tighter DEQ and EPA regulations, emissions from road vehicles have been reduced greatly. A recent study published by the Vehicle Certification Agency states: "it would take 50 new cars that traveled one mile to produce the same quantity of air pollutant emissions that are produced in one car that was manufactured in 1970."
The cars people drive daily on the streets cause pollution in other ways as well, though. For example, 60 percent of water pollution comes from cars, excess fertilizer, and pet waste. Oil, coolant/antifreeze, transmission, power steering, gear oil, brake fluid, and brake pad particulates get into storm drains, creeks, lakes, and rivers from the roadways. This is caused by cars leaking fluids that need to be repaired. The Washington State Department of Ecology states: "Each year 180 million gallons of used motor oil makes its way into waterways that lead into lakes and rivers. This is 16 times the amount of oil spilled by the Exxon Valdez in Alaska." These fluids can harm or even kill plants and animals and will adhere to any substances they touch.
How you can help keep our environment clean is to have your vehicle inspected regularly, and have leaks repaired as they are discovered. Clean up any spills or leaks immediately using a product designed to soak up oil and dry out so it can be disposed of properly. Never dispose of oil or any other vehicle fluids on the ground, a storm drain, or ditch. Most automotive parts stores will take used fluids that are properly sealed and marked.
Happy Motoring and Keep Our Environment Clean!