Scientific studies show that a significant
amount of air pollution is due to car emission – in certain areas, such as
large, busy metropolitan areas that amount can reach 50%. Emissions testing has
been developed to ensure that the air pollution caused by motor vehicles is
kept at bay, therefore they are instrumental in environment protection.
Conventional internal combustion engines burn
fuel and while doing so, they produce various types of gases that get
eliminated. Exhaust gases include mono-nitrogen oxides, carbon monoxide, carbon
dioxide, volatile compounds, particulate matter and many other substances the
acceptable quantities of which are regulated by emissions standards.
Emissions
tests serve the purpose of checking whether the exhaust gas emitted by the
tested car is within the accepted parameters – if the tests find that the
exhaust gas contains too much of one or several pollutants, the car is not
allowed for being driven until the repairs intended to reduce the emissions
achieve the expected results. It is a focus that is taught at driving lessons Orange County offers.
Not all states or regions require emissions
testing, but the regions that do, make it mandatory for motor vehicles to be
tested every year or every other year, depending on local regulations as well
as on the type and age of the engine.
