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APES Unit 6: Pollution

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by

Lynnette Polaco

on 19 November 2013

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Transcript of APES Unit 6: Pollution

Economic Impacts
Impacts on the Env't & Human Health
APES Unit 6: Pollution
Lynnette Polaco
Air Pollution
Pollution Types
Noise Pollution
Water Pollution
Solid Waste
Hazards on Human Health
Hazardous Chemicals in the Env't
Major Air Pollutants
Nitrogen Dioxide
Ozone
Sulfur Dioxide
Peroxyacyl Nitrates
Suspended Particulate Matter
Volatile Organic Compounds

Photochemical
Industrial
Two Types of Smog
Indoor Air Pollutants
Molds
Bacteria
Carbon Monoxide
Radon
Allergens
Formaldehyde
Asbestos
Tobacco Smoke
Heat Islands
Occur in urban areas that are significantly warmer than surrounding areas
Effects
Cardiovascular problems
Gastric-intestinal problems
Decrease in alertness
Decrease in ability to memorize
Decrease in visual field
Insomnia
Bulimia
Anxiety
Depression
Sexual Dysfunction
Control Measures
Reduced through noise barriers
Limitations on vehicle speed
Newer surface highway technology
Changes in tire design
Limiting time for heavy-duty vehicles
Sources of Pollution
Air Pollution
Chemicals
Mining
Microbiological Sources
Noise
Nutrients
Thermal Sources
Oxygen Depleting Substances
Suspended Matter
Groundwater Pollution
50% of U.S. citizens depend on groundwater for their water supplies.
About 1/2 of water used for agriculture is groundwater.
If water in an aquifer is contaminated, it is basically impossible to remove the pollutants.
Cultural Eutrophication
Defined as the process whereby human activity increases the amount of nutrients entering surface waters
Sewage Treatments
Primary
reduces oil, fats, grease
Secondary
degrade biological content
Teritary
raise effluent quality
Types:
Toxic
paints, chemicals, pesticides
Spoiled
hospital wastes
Recyclable
paper, glass, metal, some plastics
Radioactive
smoke detectors & spent fuel rods
Organic
vegetables, kitchen wastes, leaves
Disposal & Reduction
Burning, Incineration, & Energy Recovery
Land Disposal
Sanitary Landfills
Open Dumping
Composting
Ocean Dumping
Exporting
Remanufactoring
Detoxifying
Recycing
Reuse
Corrosive
Types of Risks
Risk Management Strategies
Acute & Chronic Effects
Dose Response Relationships
LD50
EC50
Dose Response Curves
Discarded Commercial Products
Ignitable
Nonspecific Sources
Reactive
Source Specific
Toxic
Full transcript