The figures also do not reflect exhaust emissions from cars, trucks and buses.

In addition, modern carburetors are required to do this while maintaining low rates of exhaust emissions.

The sole exhaust emission from the operating vehicle is water vapor.

This results in increased exhaust emissions, sometimes with blue smoke and/or a distinctive odor.

Electric vehicles - these produce no direct exhaust emissions, but there is still an environmental impact from the generation of electricity.

In fact, some products may even damage your car's engine or cause a substantial increase in exhaust emissions.

Experts believe that new anti-pollution strategies may be needed to hold hazardous exhaust emissions in check.

The oil crisis of the 1970s made federal regulators put pressure on car manufacturers to reduce exhaust emissions.

Car drivers should be forced to smoke their own exhaust emissions.

Its bodywork might be green but its exhaust emissions no longer were.