Nitrogen Oxides- Generated due to the chemical reaction between nitrogen and oxygen at high combustion temperatures inside the cylinder. This reaction will generally take place only above 1600 degree Celsius. Nitrogen oxides or Nox are considered as very high pollutant as they can produce components of acid rain, cause photochemical smog, it can react with VOCs ( Volatile organic compounds) in the presence of sunlight to form ozone, which is harmful for living things as it can react with lung tissues.
At stratosphere it can react with ozone , it also react with various compounds to form nitrile radicals which has a biological mutation potential.
Sulphur oxides (SOx)- Produced by oxidation of sulphur in the fuel. it can cause acid rain,
Hydrocarbons(HC)- created by incomplete combustion of fuel and lube oil, and the evaporation of fuel. They are carcinogenic and forms photochemical smog.
Carbon Monoxide- Formed due to combustion taking place with lack of air, toxic at higher concentrations
Particulate matter(PM)- A complex mixture of various organic and inorganic compounds formed due to incomplete combustion of fuel. it mainly contains soot particles.
At stratosphere it can react with ozone , it also react with various compounds to form nitrile radicals which has a biological mutation potential.
Sulphur oxides (SOx)- Produced by oxidation of sulphur in the fuel. it can cause acid rain,
Hydrocarbons(HC)- created by incomplete combustion of fuel and lube oil, and the evaporation of fuel. They are carcinogenic and forms photochemical smog.
Carbon Monoxide- Formed due to combustion taking place with lack of air, toxic at higher concentrations
Particulate matter(PM)- A complex mixture of various organic and inorganic compounds formed due to incomplete combustion of fuel. it mainly contains soot particles.
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