Air Pollution

Question 1

Lapse Rate

Answer 1

rate of atmosphere temperature, T, decrease with altitude

Question 2

Environmental lapse rate

Answer 2

Actual measured rate

Question 3

Dry Adiabatic lapse rate

Answer 3

rate at which a parcel of air with no liquid moisture cools as it rises. 9.8 deg C/ 1000m

Question 4

which type of atmospheric stability will
mean the worst case scenario for the dispersion of a gaseous emission in the event of a sudden
release?

Answer 4

strongly stable because the emitted gases will get trapped in
the strongly stable atmosphere as dispersion in stable and especially in strongly stable
atmospheres is very limited.