B2noun2K

Emission

UK /["/ɪˈmɪʃn/"]/US /["/ɪˈmɪʃn/"]/

Definition

the production or sending out of light, heat, gas, etc.

In simple words: A substance that is released into the air or another environment.

Examples

  • the emission of carbon dioxide into the atmosphere
  • emission controls
  • The government has pledged to clean up industrial emissions.
  • We must take action to cut vehicle emissions.
  • global emissions of carbon dioxide
  • measures to reduce harmful emissions from traffic
  • the Kyoto protocol on cutting greenhouse gas emissions

Usage notes

Used mostly in scientific or environmental contexts. Appropriate in formal discussions about pollution but may seem technical in casual conversation. Avoid using in very informal contexts.

Grammar pattern

emission + (of) object

Memory hint

Think of 'emit' - when something is emitted, it goes out like a signal.

Collocations

  • harmful
  • noxious
  • toxic
  • generate
  • produce
  • curb
  • increase
  • decrease
  • fall
  • levels
  • rates
  • emissions from

Synonyms

  • release
  • discharge
  • outflow
  • leak
  • exhalation

Antonyms

  • absorption
  • capture
  • retention

Common mistakes

  • Confused with 'omission', which means to leave something out.
  • Using the word in a context unrelated to gases or substances.
  • Incorrectly pluralizing 'emission' when referring to the concept generally.