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pollution [pollutions]▼noun[UK: pə.ˈluːʃ.n̩] [US: pə.ˈluːʃ.n̩]
air pollutant▼(substance)noun
air pollution▼(contamination of the atmosphere by noxious gases and particulates)noun[UK: eə(r) pə.ˈluːʃ.n̩] [US: ˈer pə.ˈluːʃ.n̩]
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