AIR POLLUTION

Air Pollution created by man Burning of Fossil Fuels  Examples of fossil fuels: Oil and coal

 Burning of fossil fuels produces harmful gases known as OXIDES

Air Pollution created naturally Dust Volcanic Ash Forest Fires Sea Salt

Types of Pollution Primary Pollutants Car exhaust (carbon monoxide)

Industrial Smoke

Volcanic Ash

Secondary Pollution Created when primary pollutants mix with natural chemicals in the air. Examples: Smog

Ozone

Acid Precipitation  Chemicals from burning fossil fuels are absorbed in the clouds.  Clouds release acid rain or snow, which harms animals, trees, and pollutes water supplies.

Ozone Layer  Protects us from ultraviolet radiation  Broken down by the chlorine in chlorofluorocarbons (CFC’s). CFC’s found in aerosol sprays and as a refrigerant.  Chlorine takes breaks apart the three oxygens that make ozone  Ozone is made again by oxygen combining with ultraviolet radiation

Health affects of Air Pollution

 1. Coughing  2. Dizziness  3. Lung Disease  4. Runny Nose

Environmental Protection Agency  Controls amount of air pollutants released by any source  Created by Clean Air Act, passed by President Nixon in 1970  EPA requires industrial plants to use Scrubbers, which take harmful pollutants out of smoke