5 terms

O'Neill APES 15.1

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air pollution
chemicals, PM, or microorganisms in the atmosphere at concentrations high enough to harm plants, animals, materials (like buildings), or ecosystemes
ground-level pollution
air pollution in the troposphere
(air quality in) North America
(air is much) cleaner than 40 years ago
(air quality in) Asia
worst outdoor air pollution of any continent
Asia, Africa, South America
continents in which indoor air pollution is a serious issue