Download Air pollution

Air pollution
 When there are harmful substances in the
air
– Particles or gases
 Can occur naturally or from human activity
Air pollution
 Natural sources:
– Salt spray
– Mold and pollen
– Ash from forest fires
– Soil erosion
– Dust storms
– Volcanoes
Air pollution
 Artificial sources:
– Factories
– Farming
– Construction
– Power plants
– Vehicles
– Aerosol cans
Air pollution
 Health Consequences:
– Allergies
– Coughs
– Lung/heart disease
– Headaches
– Irritated eyes, nose, throat
Air pollution
 Environmental Consequences:
– Smog
 Brown haze formed from interaction of pollutants and
sun
– Acid Rain
 Formed when pollutants mix with water in air
 Can damage plants, lakes, buildings
Effects of Acid Rain
Air pollution
 Solutions:
– Reduce pollutants produced by humans
– Governments pass laws requiring special
devices which reduce pollution
– Expensive but necessary