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Environmental Quality Chemistry
this is not a test
24
Chemistry
Undergraduate 3
02/23/2011

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Cards

Term
Six Criteria Pollutants
Definition
CO, Pb, NOx, PM10,2.5, O3, SO2.
Term
CO source
Definition
On road vehicles
Term
Pb source
Definition
Non-Road Equipment
Term
NOx source
Definition
On road vehicles
Term
PM10 source
Definition
Road dust
Term
PM2.5 source
Definition
Fires
Term
O3 source
Definition
On road vehicles
Term
SO2 source
Definition
Electricity generation (mostly from coal fired power plants)
Term
Kelly's Corollary
Definition
One's ablity to do math is inversely proportional to their distance from the board.
Term
Particulates
Definition
"Tiny solid or liquid particles, suspended in the air, generally invisible.
Term
Blue Sky
Definition
Atmosphere mostly nitrogen, N scatters light in the short wave (blue).
Term
White Haze
Definition
All wavelengths scattered.
Term
Aerosol
Definition
Aggregates of gas molecules (7-8 carbon atoms).
Term
Residence Time of Particles
Definition
Depends on rain, size of particles, coagulation.
Term
Inhalables
Definition
PM10 (10 micrometers) can be inhaled but blocked by mucus membrane. Mostly soot (C).
Term
Respirables
Definition
PM2.5, can be inhaled and absorbed into blood stream through lungs. Formed by coagulation of gas molecules.
Term
Major Components of Aerosols
Definition
Sulfate, organic carbon.
Term
Haze Aerosols
Definition
Ammonia + Sulfuric Acid ----> Ammonium Nitrate
Term
Ammonia source
Definition
Livestock, fertilizer.
Term
Liquid Phase Reactions
Definition
Occur on molecules that have water adsorbed to surface.
Term
Formation of H2S04
Definition
Sulfer dioxide + hydroxyl radical ---> other reactions ---> H2SO4
Term
Formation of HNO3
Definition
Nitrogen dioxide + hydroxyl radical --> Nitric Acid
Term
Acid Rain
Definition
Sulfuric acid + Nitric acid from coal powered plants, not a problem in west because of limestone neutralization.
Term
Clean Air Act
Definition
Regulates emissions of six criteria pollutants. (National Ambient Air Quality Standards). Standards based on public health, regardless of costs, standards reviewed every 5 years.
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