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Normative maximum permissible concentrations of chemical substances, including radioactive ones, other substances and microorganisms (normative maximum permissible concentrations)
permissible concentration norms for chemical substances, including radioactive ones, other substances and microorganisms (hereinafter also referred to as permissible concentration norms) - norms established in accordance with the indicators of maximum permissible content of chemical substances, including radioactive ones, other substances and microorganisms in the environment, non-compliance with which may lead to environmental pollution and degradation of natural ecological systems;