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Determination of the need for solar UV radiation protection

DOI: 10.2298/sarh1012752l

Keywords: ultraviolet rays , UV index , radiation protection , Serbia

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Abstract:

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.

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