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The establishment of EVISA is funded by the EU through the Fifth Framework Programme (G7RT- CT- 2002- 05112).


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Glossary


background level(s)


Levels of chemical or physical agents that are normally found in the environment. Two types of background levels may exist for chemical substances or physical agents: (a) Naturally occurring levels: ambient concentrations of substances or agents present in the environment, without human influence; (b) Anthropogenic levels: Concentrations of substances or agents present in the environment due to human-made, non-site sources (e.g., automobiles, industries).

(Source: US EPA Glossary of IRIS Terms )


The term "background level(s)" was found in the following pages:



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