11.3

AIR POLLUTION

• Occurs at three levels: Global, Regional, and Local.
• Damages the ozone
• Creates smaug

GLOBAL SCALE AIR POLLUTION

• Burning of fossil fuels in factories and vehicles
• This causes global warming
• Global Warming occurs when the atmosphere of earth heats up
• Can damage ozone by UV rays from the sun

LOCAL AIR POLLUTION

• Urban areas
• 3 basic components: Carbon Minoxide, Hydrocarbons, Particulates
• Most concentrated in southern California
• Mostly cause by motor vehicle emission.

SOLID WASTE POLLUTION

• 4 pounds per person a day
• Mostly paper products and metals
• Sanitary landfill = common strategy for disposal
• Other alternatives: Incineration
• Heavy metals are especially difficult to dispose of

SOLID WASTE POLLUTION CONT.

• In 2010 3.93 billion pounds of toxic chemicals were released
• Breathing air with toxic waste can cause cancer and chronic ailments

WATER POLLUTION

• Water serves human purposes
• Point source pollution = specific location
• Non-Point pollution = comes from a large diffused area
• Kills wildlife, leads to difficulties in food for humans

POINT VS. NONPOINT

• Point source comes from manufacturers and sewage
• Nonpoint pollutes more widespread
• Nonpoint comes mainly from agriculture- fertilizers