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Chapter 9. Air Pollution Pollutants in the air Smog, heat, light, and noise Acid Rain Climate Change. 9.1 What is Air. Air pollution Human sources. Air. Made up of gases Nitrogen Oxygen Humidity (water). Dirty Air. Unhealthy gases From cars, electricity, factories.
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Chapter 9 Air Pollution • Pollutants in the air • Smog, heat, light, and noise • Acid Rain • Climate Change
9.1 What is Air Air pollution Human sources
Air Made up of gases • Nitrogen • Oxygen • Humidity (water)
Dirty Air • Unhealthy gases • From cars, electricity, factories
Particulate Matter • Small particles moving in the air BAD TO BREATH
Air Pollution • Unhealthy air inside and outside
Air Pollutants • Unhealthy to breath into lungs • Smoke, dirt, dust, exhaust • Chemicals and heavy metals • Mold, spores, pollen
2Categories Primary Air Pollution Secondary Air Pollution Made afterbeing released into the atmosphere Smog Ozone Acid rain • Released directly into the air.
Outdoor Air Pollution • Measured by Air Quality Index • Each day various air pollutants are collected • Each geographic area gets an AQI # • Watch weather reports!
Indoor Air Quality • Air inside homes/ buildings • Worse that outdoors- enclosed
HEPA • Filters airborn particles • Vacuum or furnace
Breathing • Pollutants cause health problems for people, plants, and animals
Respiratory System • +600,000 / year die from air pollution • Asthma (allergies) • Emphysema (smoking)
Aquatic Life Carbon Dioxide dissolves in water • Increases the growth of algae • Dead algae smells odorous and reduces oxygen • Kills fish • Decreases he pH (acidic) • Dissolves coral and the shells
Aquatic Life NOx and SOx • Cause acid rain
Acid Rain • Destroys metal and stone
Acid Rain • Kills fish
Aquatic Life Particulate matter • Kill fish and other organisms
Emissions • Substances released into the air from…… • Burning coal, gasoline, natural gas • Volcanoes/ Lightning • Industrial and utility
Ways to Reduce Emissions • Drive less, walk more • Buy local products • Reduce electricity used • Insulate home, windows, doors • Recycle
Clean Air Act • 1970 • A law to prevent and reduce pollution by industry, farmers, and drivers
Radon Gas • Radio active gas • No smell, taste, color • Causes lung cancer