Presentation on theme: "What are the origins and environmental implications of pollutants in car exhaust gases? By Oscar Miles."— Presentation transcript:
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: CxHy + (x + y/4) O2 xCO2 + (y/2) H2O CxHy + (2x + y/4) O2 xCO + (y/2) H2O
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 Origin -In complete combustion Environmental Effects -Health problems including: nausea, difficulty breathing, lung cancer and cardiovascular illnesses.
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) Origin: combustion of nitrogen in air. Environmental Effects -Toxic to humans- Causes acid rain -Contributes to photochemical smog -Damages ozone layer Chemical equations: N 2 + O 2 2NO2NO + O 2 2NO 2
Sulphur Dioxides (SOx) Origin - Forms when sulphur combusts in air Environmental effects: -Damaging to humans, plant and animal life -Acid rain. Chemical Equations: S + O 2 SO 2 2SO 2 + O 2 2SO 3