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

Sulfur dioxide is not a major component of smog, which primarily consists of ozone, nitrogen dioxide, and carbon monoxide.

Respiratory disease is the leading cause of death from environmental pollution worldwide, accounting for approximately 4.2 million deaths annually.

Sulfur dioxide is the primary pollutant responsible for acid rain, which occurs when sulfur dioxide and nitrogen oxides react with water vapor in the atmosphere.

Bioaccumulation is the process by which pollutants are transferred from the environment to living organisms and accumulate in their tissues over time.

Lead is a known neurotoxin that can impair cognitive function and development, particularly in children.

Biodegradation is the process by which pollutants are broken down into less harmful substances by microorganisms.

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

Biomagnification is the phenomenon where pollutants become more concentrated as they move up the food chain.

Asbestos is a known carcinogen that is linked to lung cancer and other respiratory diseases.

Bioremediation is the process by which pollutants are removed from the environment through natural processes, such as the action of microorganisms.

Nitrogen oxides are the primary pollutants responsible for the formation of ground-level ozone, a major component of smog.

Environmental transport is the process by which pollutants are transferred from one environmental medium to another, such as from air to water or from soil to air.

Bisphenol A (BPA) is a known endocrine disruptor that can interfere with hormone function and development.

Persistence is the phenomenon where pollutants accumulate in the environment and persist for long periods of time, posing a risk to human health and ecosystems.