1. Carbon monoxide (CO): This gas is poisonous and can cause headaches, nausea, and even death in high concentrations. It is produced when fuel does not burn completely.
2. Nitrogen oxides (NOx): These gases contribute to smog formation and can cause respiratory problems, such as asthma and bronchitis. They are produced when nitrogen in the air reacts with oxygen at high temperatures.
3. Particulate matter (PM): These are small particles of soot, smoke, and other pollutants. They can cause respiratory problems, such as asthma and bronchitis, and can also contribute to heart disease.
4. Volatile organic compounds (VOCs): These are gases that contribute to smog formation and can also cause respiratory problems. They are emitted from fuel, gasoline, and other products.
5. Greenhouse gases (GHGs): These gases trap heat in the atmosphere and contribute to climate change. The primary GHG emitted by vehicles is carbon dioxide (CO2), which is produced when fuel burns.
These pollutants can have negative impacts on air quality, human health, and the environment. They can contribute to smog formation, acid rain, climate change, and other environmental issues.
