Meaning of EMISSION in English
e ‧ mis ‧ sion /ɪˈmɪʃ ə n/ BrE AmE noun
1 . [countable usually plural] a gas or other substance that is sent into the air:
Britain agreed to cut emissions of nitrogen oxide from power stations.
2 . [uncountable] the act of sending out light, heat, gas etc
• • •
■ ADJECTIVES/NOUN + emissions
▪ harmful emissions (=likely to cause harm to people or the environment)
The law is designed to limit harmful emissions.
▪ toxic emissions (=poisonous)
By the end of the decade we could reduce toxic emissions by half.
▪ noxious emissions (=harmful and poisonous)
The air is a toxic cocktail of exhaust fumes and noxious emissions from nearby factories.
▪ vehicle emissions (=from cars, lorries etc)
California has introduced tough new standards for vehicle emissions.
▪ industrial emissions (=from factories)
The trees are being killed by acid rain and other industrial emissions.
▪ sulphur dioxide/carbon dioxide/greenhouse gas etc emissions
The treaty calls for a 30% reduction in sulphur dioxide emissions.
▪ cut/reduce emissions
an agreement to cut emissions of gases which contribute to global warming
▪ control/limit emissions
The measures to control carbon dioxide emissions do not go far enough.
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012