4 - Air Pollution Flashcards
1
Q
Main pollutants?
A
CO, NOX, SO2, O3 and aerosols
2
Q
How are pollutants measured?
A
Ground measurement stations, airplanes and satellites
3
Q
Normal modelling
A
calculating concentrations based on emissions
4
Q
Reverse modelling
A
Useful to see who is polluting the air
5
Q
What are models used for?
A
To extrapolate between data points, analyse pollution events and make predictions
6
Q
Effects of pollution?
A
photochemical smog, acid rain and ozone hole
7
Q
What are CFCs used for?
A
Refrigerants, propellants and solvents
8
Q
Why is it problematic if a city is in a valley?
A
Cool air will sink trapping pollutants in the valley e.g. Mexico City, Paris
