5 Essential Things to Know About Car Emissions

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As long as there are gasoline vehicles, there will be vehicle emissions. Although technology is improving all the time, pollution produced by the incomplete combustion of vehicle engines poses hazards to not only the environment, but to human health as well.

If you’ve ever wondered how car emissions work, here are some important facts about these vapors, particles, and fumes that are released by gasoline and diesel engines into the surrounding environment.

Exhaust Emissions

Engine combustion causes the release of VOCs (Volatile Organic Compounds), nitrogen oxides, carbon dioxide, and hydrocarbons. These byproducts of engine operation create damaging greenhouse gases. Exhaust emissions are produced in two ways: cold start – the first few minutes after starting the car – because the engine is not at optimal operating temperature, and running exhaust emissions, which exit the tailpipe during driving and idling.

Evaporative Emissions

These are VOCs which escape while the vehicle is running, during the cooldown period, in the night when the car is sitting stationary, as well as vapors that escape the gas tank during refueling.

Vehicle Pollutants Affect More Than the Ozone Layer

Vapors and particulates that exit vehicles through the exhaust system come to settle on soil and in bodies of water, affecting not only the people who rely upon that land for food, but also wildlife that lives there.

Cars Are Major Contributors to Air Pollution

According to the EPA (Environmental Protection Agency) vehicles are responsible for more than 50% of the air pollution in the United States. Americans travel more than 246 trillion miles each year.

Electric Cars May or May Not Help

As alternative car technology advances, gas usage decreases and with that, vehicle emissions are reduced. However, in locations that depend upon fossil fuels to produce conventional electricity, the benefits of electric and hybrid vehicles are reduced due to the emissions produced by the power plants necessary to provide energy to charge electric car batteries. Some locations utilize cleaner energy sources to produce electricity, which tips the balance, giving electric cars an advantage over traditional engines in terms of emissions.

The combination of cleaner fuels, more efficient engines, and better alternative vehicle technology is effectively reducing the impact of emissions on humans and the environment. In addition, 32 states require emissions testing of vehicles, further helping to keep pollution under control.


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Michael

15 years of experience
518 reviews
Michael
15 years of experience
Mercedes-Benz GL450 - Brake Pads Replacement (Rear) - Atlanta, Georgia
Micheal was punctual and friendly. Work was completed within promised time. Will definitely use again.
Volvo S80 - Brake Pads Replacement (Front) - Roswell, Georgia
Michael was SUPER QUICK with doing my brake and rotors. Great communication throughout the whole process. Will always recommend

Kenneth

19 years of experience
509 reviews
Kenneth
19 years of experience
Toyota Sequoia - Brake Pads Replacement (Front) - Newport Beach, California
Kenneth did a great job and very knowledgeable. He has a great attitude and I will for sure be using him again.

Chuy

13 years of experience
129 reviews
Chuy
13 years of experience
Honda Civic - Brake Pads Replacement (Front, Rear) - Cicero, Illinois
Excellent work on doing the breaks for my car and the break and steering system flush I’ll definitely recommend and take into consideration for chuy’s work whenever I need a fix on my car

Richard

16 years of experience
72 reviews
Richard
16 years of experience
BMW 328i - Brake Pads Replacement (Rear) - Dublin, California
Richard was an outstanding mechanic. After he arrived, the first thing he did after taking the initial pictures of the car is an assessment into what work was asked. He quickly verified that I did not need brake fluid and my front brakes even-though it affects his personal commitments and time, which I think is highly appreciate and thorough professional. He was detailed oriented - took time to make sure that all the issue are fixed. He paid attention to detail in overall car assessment- he goes above and beyond. He was also teaching me through the process which I found highly educational and appreciate him providing the information ensuring and making me comfortable what he was doing and explaining patiently all the questions that was thrown at him. When he works - you know he's highly skilled and experienced and knows his stuff. He is highly experienced. He is a "Master" mechanic in true sense :)

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