Part 1 Flashcards
(30 cards)
Collectively, particles of soot, smoke, dust, and pollen are called:
Aerosols
Facts about carbon monoxide (CO):
It is a poisonous gas from incomplete combustion, binds preferentially to hemoglobin, and can kill
Nitrogen dioxide (NO₂) reacts with ____ in the atmosphere to form nitric acid (HNO₃):
Water (H₂O)
A primary component of photochemical smog is:
Ozone (O₃)
An air quality index value of 35 on a particular day would indicate ____ conditions:
Good conditions
The mixing depth is:
an unstable layer that extends from the surface up to the base of an inversion
A looping shape exhibited by a smokestack plume is indicative of ____ conditions:
Unstable conditions
A coning shape exhibited by a smokestack plume is indicative of ____ conditions:
Neutral conditions
A fanning shape exhibited by a smokestack plume is indicative of ____ conditions:
Stable conditions
A mixing layer is characterized by:
Vertical mixing of air pollutants
Which of the following conditions would act to prevent a buildup of pollutants near the surface?
A deep mixing layer
Pollution is most severe in urban areas when:
Stationary high pressure, light winds, a shallow mixing layer, and subsidence inversions
Studies suggest that downwind of a large industrial area:
Pollution concentrations can be higher (urban heat island and air flow concentrate pollutants)
Which of the following contribute(s) to the formation of an urban heat island?
All of the above: less vegetation, heat release from vehicles/factories, and slow nighttime cooling
Which is not correct about acid deposition?
It is only a problem in New England and Scandinavia
A greenhouse gas used as a refrigerant, a solvent, and during the manufacture of foam:
Chlorofluorocarbons (CFCs)
The ozone hole is found in this atmospheric layer:
Stratosphere
About 97 percent of all ozone in the atmosphere is found in the:
Stratosphere
The so-called ‘ozone hole’ is observed above:
Antarctica
The term ‘ozone hole’ refers to a ____ decrease in ozone concentration:
Significant
If the concentration of ozone were to decrease significantly, which of the following might also occur?
Increased UV radiation reaching the surface, leading to higher rates of skin cancer and crop damage
When chlorofluorocarbons are subjected to ultraviolet radiation, ____ is released which rapidly destroys ozone:
Chlorine
What gas is produced naturally in the stratosphere and is also a primary component of photochemical smog in polluted air at the surface?
Ozone (O₃)
Particulate pollution with diameters less than 2.5 micrometers are particularly dangerous because:
They can be deeply inhaled into the lungs and remain airborne longer
