Station 6-Air Pollutant Review

Match the air pollutant with its description/characteristics.

• Hydrocarbons containing carbon, chlorine, and fluorine

• CFCs (Chlorofluorocarbons)

• Heavy metal released into air as suspended particulate

• NOx (Nitrogen oxides)

• Organic molecules that evaporate easily, indoor air pollutant

• VOCs (Volatile organic compounds)

• Includes nitric oxide (NO) and nitrogen dioxide (NO2), which is a reddish brown gas, and nitrogen dioxide (N2O), which is a greenhouse gas

• Lead (Pb)

Match the air pollutant with its description/characteristics.

• Colorless gas with a pungent odor

• SO2 (Sulfur dioxide)

• Poisonous, colorless, odorless gas

• CO (Carbon monoxide)

• Very small particles of soot, dust or other matter, classified based on size

• O3 (Tropospheric ozone)

• Colorless, reactive gas that is helpful in the stratosphere but harmful in the troposphere

• PM (Particulate matter)

Match the air pollutant with its sources/causes.

• Smelting/metal processing, waste incinerators, used to be a component of gasoline and paint

• VOCs (Volatile organic compounds)

• Vehicle exhaust, burning of fossil fuels, agricultural activities

• NOx (Nitrogen oxides)

• Refrigerants, aerosol sprays, solvents

• Lead (Pb)

• Cigarettes, solvents, perfumes, paints, cleaners, glues, pesticides

• CFCs (Chlorofluorocarbons)

Match the air pollutant with its sources/causes.

• Secondary pollutant formed when NOx and VOCs react in the presence of sunlight

• SO2 (Sulfur dioxide)

• Power plants/industry, volcanoes, windblown dust, wood stoves, mining

• O3 (Tropospheric ozone)

• Coal-burning power plants

• PM (Particulate matter)

• Gas stoves, vehicles burning gasoline, boilers – produced when fuel does not burn fully

• CO (Carbon monoxide)

Match the air pollutant with its effects.

• Prevents blood from supplying oxygen to body, causing headaches, heart damage and death

• SO2 (Sulfur dioxide)

• Eye irritation, lung damage, reacts in atmosphere with water to form sulfuric acid, causing acid deposition, which damages forests and buildings

• O3 (Tropospheric ozone)

• Breaks down ozone in the stratosphere, causing hole in ozone layer

• CO (Carbon monoxide)

• Major component of smog; causes lung damage and eye irritation; damages plant tissues and suppresses plant growth

• CFCs (Chlorofluorocarbons)

Match the air pollutant with its effects.

• Causes damage to central nervous system, brain and kidneys; biomagnifies and damages ecosystems

• NOx (Nitrogen oxides)

• Reduces visibility (creating haze); discolors buildings; causes asthma, respiratory and cardiovascular problems; can alter nutrient levels in water and soils

• VOCs (Volatile organic compounds)

• Major component of smog; can react with VOCs to form tropospheric ozone; causes lung damage

• PM (Particulate matter)

• Reacts with nitrogen oxides to form tropospheric ozone; causes headaches and nausea as an indoor air pollutant

• Lead (Pb)

Tags

NGSS.MS-ESS3-4

Carbon monoxide, nitrogen oxides and VOCs are produced by vehicles. Most vehicles now have what important part that reduces emissions from these pollutants?

• Catalytic converter

• Muffler

• Air filter

• Turbocharger

According to the graph, which air pollutant decreased the most from 1970 to 1991?

• Carbon Monoxide

• Sulfur Oxide

• Particulates

• Lead

Put the following sources of air pollution into groups: natural or made by humans

Groups:

(a) Natural

,

(b) Anthropogenic (human caused)

• dust

• combustion of fossil fuels

• mining

• car emmissions

• volcanoes

• forest fires

• pollen

• factory emmissions

Leaking fuel tank: Point source or Nonpoint source?

• Point source

• Nonpoint source

• Both of them

Tags

NGSS.MS-ESS3-3