- contamination activity
- Eliminate contamination
- Noxious fumes poison the air.
- The air has been contaminateed by exhaust fumes.
- The air was infected with noisome gases
- The air is infected with noisome gases.
- Supplies of drinking water are contaminated by refuse from the factory .
- There has been serious pollution since industrialization.
- Today, many polluted rivers are getting cleaner and cleaner.
- To expose to or permeate with radioactivity.
- release (of a pollutant)
- This material is recyclable and will not pollute the environment.
- Is the water polluted at source?