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Terms & Synonyms

Official WHO Definition

The gaseous envelope surrounding the Earth (WHO et al. 2003).

Other Definitions


Interpretations and Explanations

The dry atmosphere consists almost entirely of nitrogen and oxygen, together with a number of trace gases such as argon, helium and radiatively active greenhouse gases such as carbon dioxide and ozone. In addition, the atmosphere contains water vapour, clouds, and aerosols (WHO et al. 2003).


WHO, WMO and UNEP (2003) Climate change and human health: risks and responses

WHO Lexicon page (translations and examples)

See also

External Resources


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