Pollution from vehicles causes two of our worst air pollution problems, smog, or low-level ozone, and carbon monoxide.
Ozone is a colorless gas, which is composed of three oxygen atoms linked together.
When found in the upper atmosphere, it is a natural barrier to the harmful rays of the sun. When found at ground level, it can be a hazard to the health of humans, animals and plants. Industry, gasoline fumes, vehicle exhaust, chemical solvents, and natural resources generally release VOCs and NOx which are known to cause ozone at ground level . Ozone affects ones health by damaging lung tissue and making them more susceptible to infections. Ozone is also known to aggravate already existing health problems, such as asthma, heart disease and emphysema.