| 单词 | air pollutant |
| 释义 | > as lemmasair pollutant air pollutant n. a substance whose presence in the air constitutes pollution; a pollutant of the air. ΚΠ 1948 Progress (Clearfield, Pa.) 31 Dec. 1/ It also has started a movement for control of air pollutants through local ordinance calling for local inspection and regulation. 1992 P. W. Birnie & A. E. Boyle Internat. Law & Environment x. i. 391 One purpose of the convention's definition is to indicate that it is concerned with stratospheric ozone, and not with low-level ozone, which..is an air pollutant. < as lemmas |
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