Definition of «polluted air»

The phrase "polluted air" means the air that is dirty or contaminated with harmful substances or pollutants.

That global warming is happening because people are polluting the air with increasing amounts of greenhouse gases. (sciencenewsforstudents.org)
I love that I'm not polluting the air. (crunchydomesticgoddess.com)
, the single largest contributor to global warming, and makes us sick by polluting our air and water with toxic pollution like mercury. (greenpeace.org)
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