Air pollution by vehicles is caused by exhaust emissions that are a result of incomplete combustion of fuel in an engine. In a perfect world, fuel would be burnt completely and only water, carbon dioxide and nitrogen would be released, but…

Exhaust pollutants are a major health issue and the NSW Environmental Protection Agency and various agencies are committed to reducing unnecessary pollution from badly maintained engines. If your vehicle emits exhaust fumes for more than 10 seconds, you could be fined…