ABSTRACT
Background: Ultraviolet radiation is present in sunlight. If ultraviolet radiation exceeds the limit, it can cause detrimental effects on human health such as skin cancer and cataract. Materials and Methods: In this descriptive cross-sectional study, the level of solar ultraviolet radiation type A (UVA) were measured using UV LOG HAND HELD in Kermanshah city. The intensity of ultraviolet radiation was measured three times a day including two hours before noon, noon and two o'clock in the afternoon. The results were analyzed using ANOVA statistical tests with a confidence interval of 95%. Results: The lowest and highest average intensity levels of solar UVA in Kermanshah were in December (14.21± 0.94 w/m2) and August (32.87 ±2.3 w/m2), respectively. Also, winter and summer seasons (with average intensities of 16.37± 1.12 w/m2 and 30.12±1.7 w/m2) had the lowest and highest intensity of this radiation, respectively. Conclusion: Regarding that UVA radiation exceeds the safe exposure level, even in the winter in Kermanshah, it is recommended for people to avoid from long-term staying in open spaces at noon and use proper protective wears especially in summer.