Background Level

Meaning, Term, and Glossary Definition - What is Background Level?

1. The concentration of a substance in an environmental media (air, water, or soil) that occurs naturally or is not the result of human activities. 2. In exposure assessment the concentration of a substance in a defined control area, during a fixed period of time before, during, or after a data-gathering operation..

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Related glossary terms:

Action Levels   A-Scale Sound Level   Cumulative Working Level Months CWLM   Drinking Water Equivalent Level   Exposure Level   Health Advisory Level   High-Level Nuclear Waste Facility   High-Level Radioactive Waste HLRW   Level of Concern LOC   
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