Vehicle exhaust is a major source of air pollution in urban areas, contributing to high levels of particulate matter, nitrogen oxides, and carbon monoxide.

Particulate matter, especially fine particles (PM2.5), can penetrate deep into the lungs and cause respiratory problems such as asthma, bronchitis, and even lung cancer.

Long-term exposure to ozone has been linked to an increased risk of cardiovascular disease, including heart attacks and strokes.

Sulfur dioxide is a major contributor to acid rain, which can damage forests, lakes, and aquatic ecosystems.

Short-term exposure to carbon monoxide can cause headaches, dizziness, nausea, and even loss of consciousness.

Nitrogen oxides react with sunlight to form ozone, a major component of smog.

Long-term exposure to nitrogen dioxide can lead to respiratory problems such as asthma, bronchitis, and emphysema.

Chlorofluorocarbons (CFCs) are primarily responsible for the depletion of the ozone layer.

Short-term exposure to sulfur dioxide can cause respiratory problems such as coughing, wheezing, and shortness of breath.

Radon is a naturally occurring radioactive gas that can accumulate in homes and cause lung cancer.

Long-term exposure to particulate matter has been linked to an increased risk of cardiovascular disease, including heart attacks and strokes.

Sulfur dioxide is a major contributor to acid rain, which can damage forests, lakes, and aquatic ecosystems.

Short-term exposure to carbon monoxide can cause headaches, dizziness, nausea, and even loss of consciousness.

Nitrogen oxides react with sunlight to form ozone, a major component of smog.

Long-term exposure to nitrogen dioxide can lead to respiratory problems such as asthma, bronchitis, and emphysema.