MAXIMUM ALLOWABLE CONCENTRATION Meaning and
Definition
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Maximum Allowable Concentration (MAC) refers to the highest level of a particular substance that is legally allowed to be present in a specific environment, such as ambient air, drinking water, or workplace air, without posing a significant risk to human health or the environment. It is a regulatory guideline established by governmental agencies or organizations that monitor and enforce environmental and occupational safety standards.
The MAC is typically determined based on extensive scientific research and risk assessment studies. It takes into consideration the toxicity and potential health effects of a substance, as well as the duration and frequency of exposure. The purpose of setting a MAC is to establish a limit that ensures the protection of human health and the environment from harmful effects associated with exposure to the substance.
MAC values are specific to each substance and are often expressed in terms of concentration (e.g., milligrams per cubic meter, parts per million) depending on the medium being monitored. It is crucial to regularly monitor and assess the levels of substances in the environment against established MAC values to prevent potential health hazards and maintain compliance with regulations.
Compliance with MACs may involve implementing control measures, such as engineering controls, administrative controls, or personal protective equipment, to reduce or eliminate exposure to substances above the established limits. Failure to comply with MACs can have legal implications and result in penalties or fines from regulatory authorities.
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