Exam #9 Flashcards
What is air pollution
the air of a substance which has harmful or poisonous effects.
What is primary pollutant
Air pollutant emitted directly from human activity
3 examples of primary pollutants
Soot from smoke, household products, power plants.
What is a secondary pollutant?
Is not directly emitted as such
Where do fine particles come from?
Form from the reaction of gasses or droplets in the atmosphere from sources like power plants
Where do coarse particles come from?
Cement plants, mining operations,incinerators, wood burning fireplaces
How much air pollution comes from gasoline being burned by vehicle?
1/3
When was the clean air act passed?
1970
What is ZEV
Zero emission vehicle
What are the only true ZEVs?
Battery powered electric vehicles
What are 2 partial ZEVs?
Hybrid vehicles.
Hydrogen powered.
List industries that produce VOCs
Dry cleaning, oil refineries, chemical plants, auto body shops.
What is a VOC
Chemical compound
What is a scrubber?
A machine that moves gases through a spray of water that dissolves many pollutants
What is smog?
When air pollution hangs over urban areas and reduces visibility
How is smog created?
Results from chemical reactions that involves sunlight, air.
What are some symtoms of short-term exposure to air pollution?
Headache, nausea
How would the short term exposure to air pollution effects be reversed?
If your exposure to air pollution decreased.
What are the long-term exposure effects to air pollution
Lung cancer, heart disease.
What are some major sources of indoor air pollution?
Chemicals used to make carpets and paints.
What is sick building syndrome
Buildings that have very poor air quality
What is ventilation?
Mixing of outdoor air with indoor air
What is radon?
Colorless, odorless, gas
What is Asbestos
Minerals that form in long, thin fibers that are valued for their strength and resistance to heat.
