GEMET
General
Multilingual
Environmental
Thesaurus
gaz de décharge
Definition

Landfill gas is generated in landfill sites by the anaerobic decomposition of domestic refuse (municipal solid waste). It consists of a mixture of gases and is colourless with an offensive odour due to the traces of organosulphur compounds. Aside for its unpleasantness, it is highly dangerous as methane is explosive in concentrations in air between 5 per cent, the Lower Explosive Limit (LEL), and the Upper Explosive Limit (UEL) of 15 per cent. Landfill gas must be controlled at all operational landfill sites, whether actively or passively vented or both especially in the case of deep sites.

Definition is not available for the current language.

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Scope note

Scope note is not available.

Concept URL: http://www.eionet.europa.eu/gemet/concept/4625