Air Pollutants
Air pollutants are substances in the air that can have adverse effects on humans and the environment. The four major air pollutants are carbon monoxide (CO), ozone (O3), sulfur dioxide (SO2), and nitrogen dioxide (NO2).
Carbon Monoxide (CO)
Carbon monoxide is a colorless, odorless gas that is produced by burning fuels such as gasoline, wood, and coal. It is one of the most common air pollutants and can cause serious health problems, especially when inhaled in large quantities. Chronic exposure to this pollutant can lead to headaches, dizziness, nausea, and even death.
Ozone (O3)
Ozone is a gas that is produced when photochemical reactions occur in the presence of sunlight. Ozone in the lower atmosphere (ground level) is a major air pollutant and can cause eye, nose, and throat irritation, as well as lung damage.
Sulfur Dioxide (SO2)
Sulfur dioxide is a colorless gas that is produced when fossil fuels such as oil and coal are burned. It is a major air pollutant and can cause respiratory problems, such as chest pain and coughing. It can also cause acid rain, which can damage vegetation and structures.
Nitrogen Dioxide (NO2)
Nitrogen dioxide is a reddish-brown gas that is produced when fuels are burned at high temperatures. This pollutant can irritate the lungs and cause respiratory problems. It can also contribute to the formation of smog, which can reduce visibility and cause health problems.