title: [Biological M.A.C. (Maximum Allowable Concentration)].
mesh_terms: D000397:Air Pollution; D001711:Biotransformation; D004782:Environmental Health; D006801:Humans; D007982:Levulinic Acids / Q000378:metabolism; D008452:Maximum Allowable Concentration; D009784:Occupational Diseases / Q000378:metabolism; D009787:Occupational Medicine; D011166:Porphyrins / Q000378:metabolism
chemical_list: D007982:Levulinic Acids; D011166:Porphyrins
vernacular_title: I M.A.C. biologici.