title: [Combined effects of noise and heat and the evaluation of their biological equivalency].
abstract: The article contains a review of medical literature data on the complex action of noise and heat on man and laboratory animals, which prove without doubt a synergic nature of their complex action, whereas their effect on the audiofunction is near to an additive one. To perform hygienic assessments of their action, in addition to the typology of the complex action, it is proposed to use the biologic equivalent index which reflects the dosage-relationship of the two factors. It is indicated that the index is equal to 0.4-3.3 degrees C/dBA for different figures, being greater in respect to specific indices as compared with non-specific ones. More research should be made into this important problem.
authors.forename: M A
authors.initials: MA
authors.lastname: Babaian
authors.forename: E I
authors.initials: EI
authors.lastname: Denisov
mesh_terms: D001309:Auditory Threshold / Q000502:physiology*; D002320:Cardiovascular Physiological Phenomena; D006358:Hot Temperature; D006801:Humans; D008452:Maximum Allowable Concentration; D008834:Microclimate; D008954:Models, Biological; D009623:Noise, Occupational; D009787:Occupational Medicine / Q000592:standards*
vernacular_title: Sochetannoe deĭstvie shuma, tepla i otsenka ikh biologicheskoĭ ékvivalentnosti.