SMOG QUESTIONS AND ANSWERS
WITH COMPLETE SOLUTIONS 100%
CORRECT RATED A+
Classical Smog (London-type Smog)
Primary Drivers: Heavy use of coal and high sulfur content in fuels.
Chemical Nature: Reducing. It is characterized by high levels of sulfur
compounds, which act as reducing agents in the atmosphere.
Conditions: Requires cool, humid air. The moisture in the fog combines
with sulfur dioxide ($SO_2$) to form sulfuric acid droplets, which can cause
severe respiratory issues.
Occurrence: Can happen at any time of day, provided there is high
humidity and significant fossil fuel combustion.
classical smog -ANSWER ✔✔-produced by the combustion of fossil fuels like
coal, petrol, or gasoline and caused by a mixture of smoke and sulfur dioxide
(SO2) present in air
-also known as London smog, reducing in nature, occurs in cool, humid climates,
major constituents are smoke, fog, and sulfur dioxide (SO2), can occur during the
day or night
photochemical smog -ANSWER ✔✔-a type of smog produced when ultraviolet
light from the sun reacts with nitrogen oxides (NOx) and volatile organic
compounds (VOCs) in the atmosphere
-first identified in Los Angeles 1944
photochemical smog aka -ANSWER ✔✔-also referred to as "summer smog" or
"Los Angeles smog", an oxidizing smog and visible as brown haze, only happens
in the presence of sunlight, major constituents are hydrocarbons, ozone (o3), PAN,
and nitrogen dioxides (NO2), most prominent during the morning and afternoon
WITH COMPLETE SOLUTIONS 100%
CORRECT RATED A+
Classical Smog (London-type Smog)
Primary Drivers: Heavy use of coal and high sulfur content in fuels.
Chemical Nature: Reducing. It is characterized by high levels of sulfur
compounds, which act as reducing agents in the atmosphere.
Conditions: Requires cool, humid air. The moisture in the fog combines
with sulfur dioxide ($SO_2$) to form sulfuric acid droplets, which can cause
severe respiratory issues.
Occurrence: Can happen at any time of day, provided there is high
humidity and significant fossil fuel combustion.
classical smog -ANSWER ✔✔-produced by the combustion of fossil fuels like
coal, petrol, or gasoline and caused by a mixture of smoke and sulfur dioxide
(SO2) present in air
-also known as London smog, reducing in nature, occurs in cool, humid climates,
major constituents are smoke, fog, and sulfur dioxide (SO2), can occur during the
day or night
photochemical smog -ANSWER ✔✔-a type of smog produced when ultraviolet
light from the sun reacts with nitrogen oxides (NOx) and volatile organic
compounds (VOCs) in the atmosphere
-first identified in Los Angeles 1944
photochemical smog aka -ANSWER ✔✔-also referred to as "summer smog" or
"Los Angeles smog", an oxidizing smog and visible as brown haze, only happens
in the presence of sunlight, major constituents are hydrocarbons, ozone (o3), PAN,
and nitrogen dioxides (NO2), most prominent during the morning and afternoon
