1. ENVIRONMENTAL HAZARDS

2. What are environmental hazards?
Pollutants in our air, land, and water that can affect our health
EPA-Environmental Protection Agency monitors levels of pollutants
What are environmental hazards?

3. Estimated that 50,000 to 120,000 people die prematurely each year
EPA has identified 5 major air pollutants
AIR POLLUTION

4. AIR POLLUTANTS HEALTH CONCERNS POLLUTANT Asthma, pneumonia, bronchitis
Asthma, bronchitis, decreased lung function, premature death
Poisonous, can harm people with heart disease and affects the central nervous system, fatal in large amounts
Ozone , Ground- level Ozone (smog)
Particulate Matter (PM): dirt, dust, soot, smoke, liquid droplets in air
Carbon Monoxide (CO): colorless, odorless gas formed when carbon in fuel is not completely burned
AIR POLLUTANTS

5. AIR POLLUTANTS CONT. HEALTH CONCERN AIR POLLUTANT
Respiratory illnesses, aggravates heart & lung diseases
Causes or triggers serious respiratory problems
Sulfur Dioxide: gas that dissolves in water to form acid, reacts with other gases in air to form harmful particles
Nitrogen Oxides: group of highly reactive gases
AIR POLLUTANTS CONT.

6. INDOOR AIR POLLUTANTS HEALTH CONCERN Lung cancer AIR POLLUTANT
Damage to kidneys, liver, brain & nerves
Asbestos: fibrous material that has fireproof properties
Lead
Radon: odorless, radioactive gas
INDOOR AIR POLLUTANTS

7. LAND AND WATER POLLUTION
Wastes from human activity can pollute our land and water
Many wastes are biodegradable
Hazardous waste: explosive, corrosive, highly reactive, or toxic to humans or other life forms
Pesticides can cause eye & skin irritations, damage to nervous or endocrine systems,
Water pollution is sometimes caused by illegal dumping, but most surface contamination is caused by polluted runoff
Unclean water can cause cholera, typhoid, diarrhea, dysentery, intestinal worms
LAND AND WATER POLLUTION