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close this bookWIT's World Ecology Report - Vol. 07, No. 4 - Critical Issues in Health and the Environment (WIT, 1995, 16 p.)
View the document(introduction...)
View the documentSpecial Focus: The Future is Urban
View the documentHealth and Environment: Human Impact on Climate Change and Human Health
View the documentCriteria Pollutants: Their Effects, Sources, and Standards
View the documentChernobyl Update
View the documentMonsanto Provides Major Grant to Children of Chernobyl for Rural Health Program
View the documentThe Major Threats to the Earth's Environment
View the documentThe End of Guinea Worm
View the documentFood for Thought: On the Road to Istanbul - Habitat II: The City Summit
View the documentDid You Know?
View the documentThe Politics of Language in the Beijing Conference: Sex vs. Gender
View the documentGood News
View the documentInternational Environmental Law United Nations
View the documentVoices of the Planet
View the documentPoint of View: The Future is Urban: The Illusion of Change

Criteria Pollutants: Their Effects, Sources, and Standards

POLLUTANT: Carbon Monoxide (CO)
DESCRIPTION: Colorless, odorless, tasteless gas
EFFECTS: Interferes with the blood's ability to carry oxygen. Headache, dizziness, suffocation.
MAIN SOURCES: Motor vehicle exhaust. Incomplete combustion of fossil fuel.
CONTROLS: Better combustion, tune-ups, fewer cars, better traffic flow, engine modification.
HEALTH STANDARD: 1-hour average: 35 ppm* (40 mg/m3); 8-hour average: 9 ppm (10 mg/m3)
ENVIRONMENTAL STANDARD: Same as health (primary) standard.

POLLUTANT: Nitrogen Dioxide (NO2)
DESCRIPTION: Yellowish to reddish brown pungent gas, depending on concentration
EFFECTS: Respiratory irritant, increases susceptibility to respiratory disease. Acid rain.
MAIN SOURCES: Motor vehicle exhaust; combustion of fossil fuel.
CONTROLS: Reduce combustion temperature in cars; catalytic converters. Smokestack controls. HEALTH STANDARD: 12 month average: 0.05 ppm (100 ug/m3)
ENVIRONMENTAL STANDARD: Same as health standard.

POLLUTANT: Ozone (O3)
DESCRIPTION: Gas, odorous at high concentrations.
EFFECTS: Eye, nose, throat, irritant; decreases lung function. Decreases resistance to some infections. Vegetation and materials damage.
MAIN SOURCES: Not emitted: formed in air by chemical reaction of hydrocarbons and nitrogen oxides in sunlight.
CONTROLS: Reduce emissions of volatile organic compounds and nitrogen oxides from vehicles and industry. Vapor recovery.
HEALTH STANDARD: Maximum daily 1 - hour average: .12 ppm (1.5 ug/m3)
ENVIRONMENTAL STANDARD: Same as health standard.

POLLUTANT: Lead (Pb)
DESCRIPTION: Small particles suspended in air.
EFFECTS: Accumulates in bone. When released to blood, causes neurologic damage.
MAIN SOURCES: Industrial processes. Fugitive dust (e.g. lead paint). Old plumbing. Lead in gasoline (nearly eliminated).
CONTROLS: Industrial pollution control. Remove old lead pain, replace plumbing, and eliminate new uses.
HEALTH STANDARD: 3-month arithmetic mean: 1.5 ug/m3
ENVIRONMENTAL STANDARD: Same as health standard.

POLLUTANT: Sulfur dioxide (SO2)
DESCRIPTION: Pungent gas.
EFFECTS: Eye, nose, throat irritant; decreases lung function. Acid rain. Materials damage.
MAIN SOURCES: Combustion of fossil fuels (motor vehicles, power plants burning high sulfur coal). Petroleum refining. Ore smelting.
CONTROLS: Lower sulfer content of fuels. Scrubbers and pollution control technology.
HEALTH STANDARD: 24-hour average: 0.14 ppm (365 ug/m3); 12 month average: 0.03 ppm (80 ug/m3)
ENVIRONMENTAL STANDARD: 3-hour average: 0.5 ppm (1300 ug/m3)

POLLUTANT: Particulate matter (PM-10)
DESCRIPTION: Suspended solid less than 10 microns in diameter.
EFFECTS: Carry toxins adhered to surface deep into the lungs. Reduced visibility.
MAIN SOURCES: Combustion process. Diesel motors. Incineration. Industry and construction.
CONTROLS: Better combustion. Control technology. Decrease use of coal. Diesel engine maintenance.
HEALTH STANDARD: 12-month arithmetic mean: 50 ug/m3; 24-hour average: 150 ug/m3
ENVIRONMENTAL STANDARD: Same as health standard.

* ppm means parts per million

SOURCE: Stansfield, 1988, "Air Pollution in New Jersey." Union: American Lung Association of New Jersey