Definition of "air pollution" [air pollution]

• The contamination of the atmosphere by noxious gases and particulates. (noun)

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• "When Jan and David drove into those smoky Montana fires, they were steering into a chemical path of burning trees and nearly two dozen homes and other freestanding structures—a superintensified kind of air pollution made up of what are known in the scientific world as “microparticles.”"
• "Reduction in fine particulate air pollution and mortality: Extended follow-up of the Harvard Six Cities study."
• "This study showed a direct cause and effect link between exposure to fine-particle air pollution and the development of atherosclerosis, commonly known as hardening of the arteries."