maximum allowable concentration


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maximum allowable concentration

Abbreviation: MAC
The upper limit of concentration of certain atmospheric contaminants allowed in the workplace.
See also: concentration
References in periodicals archive ?
Some test results show some metals, usually lead and cadmium, exceeding maximum allowable concentrations.
7 times, respectively) the maximum allowable concentrations (MAC) that are stated for bottom sediments of surface water bodies (Table 2).
5 times more than maximum allowable concentrations.

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