Industrial smog (gray smog) - from coal burning
power plants- consist of mostly sulfur dioxide, sulfuric acid, suspended particles.
Chemistry of Industrial Smog
C + O2 = CO2 carbon dioxide
2C + O2 = 2CO carbon monoxide
S + O2 = SO2 sulfur dioxide
2SO2 + O2 = 2SO3 sulfur trioxide
SO3 + H2O = H2SO4 Sulfuric acid
2NH 3 + H2SO4 = (NH4)2SO4 ammonium sulfate
Blankets of air trapping various sorts of air pollutants. Natural ventilation by the convection mechanism is not possible.
URBAN HEAT ISLAND
THE IMPORTANCE OF ATMOSPHERIC CONVECTION
Air pollution is one of the major environ-mental causes of premature mortality.