Evaluation of the sensitizing effect of a disinfectant based on glutaraldehyde upon inhalation

When investigating new disinfectants, it is necessary to assess the degree of their danger by modeling the conditions of use. As is known, the main danger of disinfectants, especially volatiles, is posed by the inhalation route of entry into the body, exerting an irritating effect on the respiratory organs, as well as a general toxic and sensitizing effect. Despite reasonable restrictions on the use of disinfectants from the aldehyde class for decontamination of the surfaces of premises and equipment, state registration receives disinfectants based on glutaraldehyde (GA), intended for wide use in various areas, including everyday life, which is unacceptable. Experiments were carried out to confirm the danger of using GA-based disinfectants. Sensitizing effect of GA-based disinfectant under conditions of surface treatment by rubbing method is studied. Significant release of GA into the air after surface treatment (27.7±4.1 mg/m3) was detected. The concentration of GA in the air decreased by 4.5 times after 6 hours of ventilation. The sensitizing effect of the GA-based agent was determined on guinea pigs by a provocative ear swelling test and a leukocyte specific lysis reaction. The results of the study indicate a pronounced sensitizing effect of the agent. Keywords: glutaraldehyde, toxicity, disinfectants, disinfection, sensitization, inhalation, guinea pigs.