The impact of solar ultraviolet radiation on human health in sub-Saharan Africa
نویسندگان
چکیده
Sub-Saharan Africa consists of 43 countries south of the Sahara (Figure 1). This area spans latitudes 13°N to 33°S with an average annual daytime temperature of 21 °C. The UV Index is often higher than 10 (extreme) and rarely drops below 7, except at high altitudes and towards the tip of South Africa in the winter months (June, July and August). The land varies from equatorial rainforest to dry woodland, savannah, grassland and mountain grassland.
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