The emissions control systems of your car include but are not limited to the following systems and system parts: The evaporative control system, which includes the PCV valve, the vacuum reservoir, the vacuum lines, the intake system, the vapor canister, the vapor restrictor, the purge control valve and the pressure/vacuum relief filler cap. The exhaust system includes the EGR valve, oxygen sensors, the air injection system, the catalytic converter, the muffler and tailpipe.

Monitoring, adjusting and controlling all of these systems and system parts is the ECM (Electronic Control Module).
In most states if one of your emissions control systems malfunctions you will not be in accordance with the emissions control laws. If any of your emissions control systems do malfunction, you must schedule an appointment as soon as possible to have your emissions control systems diagnosed for problems.

After a license repair professional at a licensed repair facility has diagnosed the reason for any malfunctions, you must then schedule an appointment for the repair of your emissions control systems.
Why would you not want your emissions control systems all working properly? If your emissions control systems are not operating within manufacturer recommended specifications you will be polluting the atmosphere you live, work and play in, adding to pollution and global warming and contributing to the destruction of the Earth. You also will not be in accordance to local, state and federal laws and regulations governing emissions control systems on business personal and commercial automobiles in the United States of America.

If your emissions control systems are all functioning properly you will be in accordance with local, state and federal laws and regulations, you will not be a contributor to pollution and global warming and you will know that you are doing everything you can to assist in stopping the destruction of the Earth.
As you can see, it is crucial to maintain your car’s emissions control systems at all times and keep them in operational condition within the manufacturer’s recommended specifications.
In summary you now have a brief description of what emissions control systems are on your car, why they are on your car and the importance of maintaining the emissions control systems on your.

When you do not maintain these systems on your car, you are contributing to pollution and global warming along with breaking many local, state and federal laws and regulations. When you break these laws and regulations governing emissions control you are positioning yourself for possible local, state and federal penalties and fines.

When fuel is burned in automobile engines at high temperatures, nitrogen oxides emissions are created. More than half of all nitrogen oxides emissions in the United States of America are caused by both on-road and non-road mobile sources which are a major polluter of nitrogen oxides emissions.

Because of these facts, it is understandable that there is an immediate need for the control of nitrogen oxides emissions.

By the ability of nitrogen oxides to travel long distances, they are the cause of a wide variety of environmental and health concerns far from the sources of their emissions. The control of nitrogen oxides emissions is needed.

When nitrogen oxides, hydrocarbons and sunlight are combined, the product is smog and ozone depletion. On high smog days, you will have difficulty seeing objects far away as well as having trouble breathing. In addition, the control of nitrogen oxides emissions is needed because they are a contributing factor to the formation of particulate matter in the atmosphere through chemical reaction with atmospheric gasses.

Nitrogen oxides also known as NOx is a generalized term for a family of colorless and odorless gasses, all containing various levels of, which are highly reactive. Nitrogen dioxide, another common chemical known for pollution, along with many air particles combine into a layer of brownish red tones. This filmy layer often can be seen over many large cities.

Particulate Matter also known as PM are tiny particles or liquid droplets that become suspended in the air containing a wide range of chemicals. Larger particles become visible as smoke or dust and settle from their suspension in the air rapidly. The most harmful to human health are the smallest particles, which can be suspended for long periods.

These smallest particles can penetrate deep into lungs. Particles directly emitted into the air come from a variety of sources including buses, trucks and cars. In addition to vehicle pollution, other sources may include construction sites, factories unpaved roads and different wood burning items.

Particulate Matter 2.5 known as PM2.5 but often referred to as “PM fine” are particles that have a diameter less than 2.5

microns and make up the majority of particulate matter from mobile sources. PM fine particles are not usually visible with your eyes because they are so small are significant contributors to haze in the atmosphere. Because they can penetrate deeper into the lungs than larger particles, the smaller the particles the more harmful to humans.

Particulate filters are an anti-pollution filter device designed to trap particles in the exhaust from diesel engines before they enter the atmosphere.