| Environment & Health | ISSN: 2077-7477 eISSN: 2077-7485 |
No: 1 (85) - March, 2018 - Pages: 26-31
Erythematous dose as one of the criteria of the hygienic regulation of insolation
Akimenko V.Ya.1, e-mail: v_ya_akimenko@ukr.net, Stebli³ N.M.1
1 State Institution "O.M. Marz³eiev Institute for Public Health of the NAMSU"
SUMMÀRY:
Objective: We performed a hygienic assessment of ultraviolet component of dwelling insolation and developed recommendations for the improvement of the insolation standards based on dose approach.
Materials and methods: We analysed the normative documents of the EU countries and the former USSR ones on the hygienic regulation of insolation in residential and public buildings. We studied the dynamics of the intensity of the sun ultraviolet radiation in A and B ranges over a light day. According to the ISO 17166 Standard, we calculated the hourly MED (minimum erythematous dose) of the ultraviolet component of insolation in the light day A and B ranges.
Results: Two-hour insolation after an hour from the moment of the sunrise for a definite geographical latitude on March 22 was suggested to be taken as a minimum necessary duration of the insolation of the residential premises. The results of the study of the ultraviolet radiation intensities in A and B ranges over the daylight hours, performed with the help of the broadband radiometer UFR 21, are presented in the paper.
The dynamics of the change in MED (minimum erythematous dose) values over two-hour intervals of insolation during the daylight hours for the geographical latitudes of Ukraine was calculatedin accordance with ISO 17166.
Conclusions: Taking into account the value of the minimum erythematous dose for the minimum required duration of dwelling insolation, the hour of possible correction of the standards for dwelling insolation was calculated at the orientation of the fenestration of the calculated dwelling into bearings in which the height of the sun at the geographical latitudes of Ukraine (from 44 ° n.l. to 52 ° n.l.) would be larger than 9°12 '- 10°42' degrees.
KEYWORDS:
Insolation, ultraviolet radiation, minimum erythematous dose, hygienic regulation, bactericidal effect
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