Card Set Information
ENVS320 SAIT CLT2
Terms and concepts from the atmosphere powerpoint (module 7)
Name the 4 regions of the atmosphere from closest to earth to farthest
Most of the mass of the atmosphere is contained in the region of the ____
troposphere (it contains up to 75% of the atmosphere's mass)
Which region of the atmosphere has the highest concentration of ozone?
In the troposphere, temperature ____ with increasing altitude because the heating occurs at the _________
surface of the earth
In the stratosphere, temperature _______ with increasing altitude
Why? Because the higher altitudes are closer to the sun, and the ozone absorbs the sun's radiation
In the mesosphere, as altitude increases, ozone concentration _____ and therefore temperature ________
In what region of the atmosphere is there so much radiation from the sun that ionization occurs readily?
Turbulent vertical mixing of air occurs in the ____
Name 6 common air pollutants
(notice this spells CLO[W]NS, but the W stands for an upside down M for particulate matter)
In which region of the atmosphere is ozone photochemically produced?
The gas composition of the atmosphere is
Is ozone still considered a pollutant if it isn't at ground level?
No, ozone in the stratosphere is a good thing because it absorbs harmful UV radiation
This pollutant harms vegetation
Is particulate matter solids only?
No, PM may be composed of small particles or liquid droplets
Which air pollutant reduces oxygen delivery in the body?
CO Carbon Monoxide
Coal burning is a major source of what common air pollutant?
Lachrymator (or Lacrimator)
A substance that causes your eyes to water (tear gas)
What air pollutant distributes through the body in the blood and accumulates in the bones?
Lead - Pb
This common air pollutant is persistent in the environment and accumulates in soil
Lead - Pb
Particulate matter of less than 10 um in diameter
Particulate matter of less than 2.5 um in diameter
Name two types of smog
Photochemical (also known as LA smog)
When radiation hits nitrogen dioxide, this can form
PANs (peroxyacetyl nitrates)
What three things are required for photochemical smog production?
Pollution (particularly NO
Name two sources of H
Sour gas extraction
Name two common indoor air pollutants
Aerosol spray (such as hair spray, which used to contain carcinogenic chemicals and/or diethyl phthalate which causes birth defects)
This air pollutant is produced naturally by valcanoes and forest fires, and anthropogenically from coal burning, oil-fuelled furnaces and vehicles
Sulphur Dioxide (SO
What is the most important gas related to acid rain?
What are the four major nitrogen gasses in air emissions?
NOx refers to
NO and NO
A natural source of ammonia is
When NO gets oxidized the result is
gets photolyzed (hit by a photon) the result is
NO and ozone
can get stored and transported in compounds called
Name two reservoir species for NO
PANs (peroxyacyl nitrates)
Nitryl Chloride (ClNO
Global warming is likely to be greatest where on earth?
At polar latitudes
The term for reflection of light back into the atmosphere
What type of radiation does the earth emit?
Name 3 ways that nitrogen adversly affects the atmosphere
What are 3 positives of the greenhouse effect?
It keeps the earth warm enough for life
We can have liquid water
Ecological functions can continue