Air pollution is best defined as ________.
gases or particles present in high enough concentrations in the atmosphere to harm humans, other organisms and structures any gases in Earth's atmosphere in trace amounts suspended particles of gases that contain small amounts of solids and liquids organic chemicals that can vaporize into the air small particles in the atmosphere arising from volatile organic compounds
Air pollution is best defined as gases or particles present in high enough concentrations in the atmosphere to harm humans, other organisms and structures.