Air Pollution
These pollutants are directly emitted into the atmosphere
What are primary or point source pollutants?
Ozone can form in the troposphere after this compound is broken down by light
What is NO2? Forms NO + O, free O combines with O2 to form O3.
This charged atmospheric phenomena creates NOx
What are lightning strikes?
Catalytic converters cause pollutants like NOx, CO, and VOCs to turn into these
What are non pollutant gases like CO2, N2, O2, and H2O
Of the two types of scrubbers discussed, name the one that cannot remove PM from air.
What are dry scrubbers?
These pollutants form once they are in the atmosphere
What are secondary or non point source pollutants?
These two factors increase smog formation rates
What are sunlight and temperature?
CO, PM, SO2, and NOx can be emitted as a result of these events
What are volcanic erruptions?
This type of scrubber reduces levels of NOx, SOx, and VOCs
What is a dry scrubber?
This indoor air pollutant comes from underground formations of granite.
What is radon?
Name two natural sources of pollution
What are pollen and volcanic ash? Also accept: VOCs
These compounds combine with NO to form photochemical oxidants
What are VOCs?
CO, PM, and NOx can be emitted as a result of these events
What are forest fires?
What is SO2?
This is what the acronym in CAFE Vehicle Standards stands for
What is Corporate Average Fuel Economy?
This greenhouse gas does not directly effect air quality
What is carbon dioxide?
Ozone formation peaks during this time of day
What is the afternoon?
These are a living source of VOCs
What are plants?
This contains toxic levels of several pollutants including arsenic, cadmium, lead, and mercury
What is coal ash?
Name three ways to reduce levels of photochemical smog via changing transportation methods.
What are carpooling, public transport, biking, walking, working from home, switching to hybrids, switching to BEVs, etc.
Name the 6 criteria air pollutants covered by the Clean Air Act.
SO2, NOx, CO, PM, O3, Pb
When VOCs instead bind to the NO it is unavailable to react with the O3, resulting in higher ozone levels at night.
This is a natural source of CO2
What is respiration?
This method of reducing PM involves charged particles
What is an electrostatic precipitator?
Assuming all conditions other than latitude are equal, where would a city be found on Earth that has more problems with the formation of smog?
What is the one that is closer to the equator, because that would make it warmer!