Definition:
Introduction de substance étrangère indésirable (physique, chimique ou biologique) dans un écosystème. Ne s’accompagne pas nécessairement d’effets (voir pollution). La contamination est généralement anthropogène (causée par l’homme), bien que certaines conditions naturelles puissent parfois en être à l’origine (ex.: arsenic, fluorure).
Source:
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Food and Agriculture Organization of the United Nations, AQUASTAT Web Site
AQUASTAT. 2008. Adapted from Harmoni-CA: Harmonised modelling tools for integrated basin management