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What are the origins and environmental implications of pollutants in car exhaust gases?. By Oscar Miles. Unburned Hydrocarbons. Origin Product from in complete combustion and evaporation Environmental Effects Cancer Asthma Smog Chemical Equations:

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what are the origins and environmental implications of pollutants in car exhaust gases

What are the origins and environmental implications of pollutants in car exhaust gases?

By Oscar Miles

unburned hydrocarbons
Unburned Hydrocarbons

Origin

  • Product from in complete combustion and evaporation

Environmental Effects

  • Cancer
  • Asthma
  • Smog

Chemical Equations:

  • CxHy + (x + y/4) O2 xCO2 + (y/2) H2O
  • CxHy + (2x + y/4) O2 xCO + (y/2) H2O
carbon monoxide
Carbon Monoxide
  • Origin: From incomplete combustion.

Environmental Effects

  • Contributes to photochemical smog,
  • Irritation, and high exposure can lead to death.

Chemical Equation: O2 + 2 C → 2 CO

particulates
Particulates

Origin

  • In complete combustion

Environmental Effects

  • Health problems including: nausea, difficulty breathing, lung cancer and cardiovascular illnesses.
carbon dioxide
Carbon dioxide

Origins: Combustion

Environmental Effects

  • Can be damaging to health in high concentrations
  • Large contributor global warming

Chemical Equation: 2O2 + 2 C → 2 C2O

nitrogen oxides nox
Nitrogen Oxides (NOx)

Origin: combustion of nitrogen in air.

Environmental Effects

  • Toxic to humans - Causes acid rain
  • Contributes to photochemical smog
  • Damages ozone layer

Chemical equations:

N2 + O2→ 2NO 2NO + O2→2NO2

sulphur dioxides sox
Sulphur Dioxides (SOx)

Origin

- Forms when sulphur combusts in air

Environmental effects:

  • Damaging to humans, plant and animal life
  • Acid rain.
  • Chemical Equations:

S + O2→SO2

2SO2 + O2→2SO3

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