Abstract
Introduction. As household insecticidal agents for mosquito control, electric fumigators are used complete with plates and/or liquid, which can pose an inhalation hazard during work. Material and methods. The toxicity and danger of five samples of electrofumigators on the basis of transfluthrin and prallethrin in the form of liquid and plates were studied. Two modes of application of electric fumigators have been tested: with 30-minutes airing after an hour-long treatment and further stay in the room of people and with the continuous operation of the electric fumigator in a ventilated room in the presence of people. High-performance liquid chromatography was used to determine the active substances in the air; the sensitivity of the method was 0.001 mg / m3. The assessment of the acute inhalation hazard of volatile components released during the operation of the electric fumigator was carried out on white outbred rats. Results. The obtained data showed that when using electric fumigators on transfluthrin and prallethrin, they are observed to increase in the air as compared with the hygienic standards established for them for the atmospheric air of populated areas. The research results depended on the form of the product and the chosen mode of application. Thus, assessing the first mode of application of the plates on transfluthrin, it was revealed that 30 minutes of airing the room is not enough, the excess of environmental tentative safe exposure levels was recorded. The study of the second mode of application of fluid and plates on transfluthrin revealed a tendency to increase its content in the air of the treated room when using both forms. When using the second mode of application of the liquid and the plates on prallethrin, it that after 1 h of operation of the electrofumigator with liquid, the concentration of prallethrin significantly was revealed to exceed the hygienic standard. Conclusion. The use of electrofumigators working for 8 hours in the presence of people is not recommended for use, it is necessary to ventilate the room when the fumigator is in operation for more than 1 hour.
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