Srpski arhiv za celokupno lekarstvo 2010 Volume 138, Issue 11-12, Pages: 752-754
https://doi.org/10.2298/SARH1012752L
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Determination of the need for solar UV radiation protection
Letić Milorad (Institut za biofiziku, Medicinski fakultet, Beograd)
Introduction. Effects of ultraviolet radiation on the skin, the eyes and the
immune system are well known. The need for UV radiation protection is
popularized by the introduction of UV index. Uneven intensity of UV radiation
in different regions in different periods of the year and in different times
of the day requires that recommendations for UV radiation protection are
given for possible UV index values in those regions. Objective. The aim of
the study is to establish a simple and consistent method for the
determination of the need for UV radiation protection in Serbia where UV
radiation intensity can be approximated as uniform. Methods. Possible values
of UV index during the year and the sun elevation during the day in periods
throughout the year were used for the determination of maximal possible UV
index values. These values were compared to UV index forecasts regarding UV
radiation protection. Results. Maximal possible values for UV index were used
for producing the colour graph. Colours on the graph indicate the need for UV
radiation protection. Green - protection is not needed, yellow - protection
is needed, red - protection is obligatory. Comparisons with the need for
protection based on forecasts showed congruence in 97% of cases. Conclusion.
The use of the graph for the determination of the need for UV radiation
protection gives nearly the same results as recommendations based on UV index
forecasts. The advantages of the graph are that it gives recommendations for
the whole year, for the time intervals during the day in every period of the
year and for the whole territory of Serbia.
Keywords: ultraviolet rays, UV index, radiation protection, Serbia
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