|Emission||Toxicity and effects|
|Carbon Dioxide (CO2)||This is a non-toxic gas, but it is one the major 'greenhouse' gases believed to be causing climate change.|
|Carbon Monoxide (CO)||Toxic. It is a by-product of incomplete fuel combustion. CO reduces the ability of blood to carry oxygen and can cause headaches, breathing problems and in high concentrations, can be fatal.|
|Oxides of Nitrogen (NOx)||Produced in the combustion process, NOx is oxidised in the atmosphere and contribute to acid rain. They can also react with hydrocarbons to produce photochemical oxidants, which can harm plants and animals.|
|Sulphur Dioxide (SO2)||Sulphur comes from crude oil. It forms acids on combustion and contributes to acid rain and engine corrosion. It can also contribute to the formation of ozone and particulate matter.|
|Hydrocarbons (HC)||Hydrocarbons are unburnt fuel and can also through evaporation from the fuel. They react with NOx in sunlight to produce photochemical oxidants which can irritate the eyes and throat.|
|Benzene (C6H6)||Benzene is emitted from vehicle exhausts as unburnt fuel and also through evaporation via the fuel system. Benzene is both toxic and carcinogenic, and long-term exposure has been linked with leukaemia.|
|Particulates (PM)||Particulate matter is partly burned fuel produced mainly from diesel engines. Particulates can get deep into the lungs and cause respiratory conditions.|
Can’t find a Crash Repair Centre?
Simply call us on 0845 676 8898
Find a Crash Repair Centre for all your repairs, bodywork and paint jobs...