Why does uv index change

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Select basic ads. Create a personalised ads profile. Select personalised ads. Apply market research to generate audience insights. Measure content performance. Develop and improve products. List of Partners vendors. Have you heard of the UV index? By now, most of us understand that ultraviolet UV radiation from the sun damages the skin. In particular, UV radiation creates oxidative stress. Severe damage can lead to sunburns in the short term.

In the long term, UV-induced oxidative damage can lead to the formation of skin cancer and early presentation of fine lines, wrinkles, and uneven skin tone. Importantly, these long-term negative effects are a result of lifetime UV exposure, not just the number or intensity of sunburns. The simple answer to minimize UV-induced skin damage is to minimize UV exposure.

The UV index is a useful tool to help us maximize fun outdoors while minimizing UV exposure. I spoke with my dear friend Dr. It is analogous to a weather report. Since the intensity of UV exposure is variable by location, season, and weather, it will vary day by day and region by region. Ultraviolet radiation is responsible for sunburns in the short term. Updated July 10, Ultraviolet radiation: global solar UV index. Updated Your Privacy Rights.

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Ramirez, Raymond and Jeffrey Schneider. Related Articles. What is the UV index and how is it calculated? The UV index is calculated based on four factors: Advertisement. The thickness of the ozone layer over your city detected using satellites The cloud cover over your city clouds block UV radiation to varying degrees The time of year in winter, UV radiation is lower than in the summer because of the sun's angle The elevation of your city higher elevations get more UV radiation.

UV Intensity maps. Cite This! Try Our Sudoku Puzzles!