Languages:

Background level(s)

Definition:

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 

Translation(s):

Deutsch: Grundbelastung
Español: Nivel(es) de fondo
Français: Niveau de fond

Related publications:
FacebookTwitterEmail
  • ABC - DEF - GHI - JKL - MNO - PQRS - TUV - WXYZ
  • Themes covered
    Publications A-Z
    Leaflets

    Video