Maximum permissible levels of laser radiation as a tool for ensuring the sanitary and epidemiological well-being of the population

Abstract

Introduction. Laser radiation is the youngest production factor, but not the most harmless. The rapid development of modern laser technologies and their introduction into various fields of science and technology has allowed lasers entering widely into everyday human life, as well as into the sphere of culture, fine arts, and the show industry. Thus, the development of a unified algorithm for calculating the maximum permissible levels (MPL) of laser radiation is becoming particularly relevant. The purpose of this work is to assess the subjective feelings of persons exposed to laser radiation at levels not exceeding the maximum permissible levels and clarify the methodology for calculating acceptable levels of laser radiation. Materials and methods. Graphical modelling was used to develop an algorithm for calculating the MPL. To assess the subjective perception of laser radiation, a survey of 20–25 years five hundred eighteen people was used according to a specially designed questionnaire. Results. Exposure to laser radiation at levels not exceeding the MPL caused unpleasant sensations in the eyes of the participants of the show, temporary violation of colour perception, temporary blindness, headache. An algorithm for calculating the MPL of laser radiation has been developed, consisting of six stages, which allows optimizing the computational component of laser safety assessment in the implementation of State sanitary and Epidemiological supervision and control. Limitations. The age range of the study participants is 20–25 years old. Conclusion. It is proposed to revise the standards of MPL for the population based on the temporary effects of radiation. This will minimize the negative impact on the organ of vision in terms of reversible changes and qualitatively improve the hygienic assessment of laser radiation. The developed algorithm for calculating the permissible levels of laser radiation will help minimize errors and reduce the time spent by specialists when assessing the safety of exposure to laser radiation on the body.