Smoke and smogs

Question 1

2 ways atmospheric pollutants behave differently to those in water or on the ground

Answer 1

-rapid movement due to wind dispersal over a large area -Synergism with UV light or electromagnetic radiation forms secondary pollutants

Question 2

3 effects of smoke pollution

Answer 2

-Humans , respiratory disease for example asthma
-reduced photosynthesis
-can reduce temperatures by higher albedo so more reflection , NUCLEAR WINTER

Question 3

London Smog 1952

Answer 3

-5 day anticyclonic weather produced clear skies and low wind velocities causing a temperature inversion
-12,000 deaths

Question 4

3 Smoke and smog’s control measures

Answer 4

-Clean air act (1956) restricted fuel use reducing smoke production in urban UK
-Scrubber uses fine water spray to wash out suspended solid particles and dissolve soluble gaseous pollutants
-Catalytic converter oxidise hydrocarbons to co2 and water

Question 5

How are photochemical smog’s made

Answer 5

NOX+UV=PANS