1.
air pollution
Contamination of the atmosphere by harmful substances.
Etymology
Related words
Causes
Other kinds of pollution:
Common collocations
Related Words
Related:
水質汚染 (water pollution)
Related:
土壌汚染 (soil contamination)
Related:
汚染 (pollution, contamination)
Related:
排気ガス (exhaust gas)
Related:
酸性雨 (acid rain)