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Abstract

A simple device for indication of intervals of UV index (UVI) values and the level of necessary protection is constructed. The indication is based on the solar elevation angle and total ozone column values. The recommended level of protection is indicated via color-coded (red, yellow, green) intervals on the scale of the device. Comparisons of the indication of the device to the forecast of UVI for 165 days during spring, summer and fall for Belgrade, Serbia showed that for 162 days the indication about application of protective measures was in agreement with the UVI forecast. The indicator is simple, easy to use, straightforward and reliable in determining the interval of UVI values and the level of necessary protection from UV radiation.