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Today's Terms
Detection limit
Definition:
The smallest amount of substance that a laboratory test can reliably measure in a sample of air, water, soil or other medium.
Quality assurance and quality control (QA/QC)
Definition:
A system of procedures, checks and audits to judge and control the quality of measurements and reduce the uncertainty of data. Some quality control procedures include having more than one person review the findings and analyzing a sample at different times or laboratories to see if the findings are similar.
Remedial Investigation (RI)
Definition:
An in-depth study (including sampling of air, soil, water and waste) of a contaminated site needing remediation to determine the nature and extent of contamination. The remedial investigation (RI) is usually combined with a feasibility study (FS).
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