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UV Index: The UV index is an international standard measurement of how strong the ultraviolet (UV) radiation from the sun is at a particular place on a particular day. The Index predicts UV intensity levels on a scale of 1 to 11+, where 1 indicates a Low risk of overexposure and 11+ signifies an Extreme risk!
Solar : The intensity of solar radiation (Watts/m² and %)
| UV Index |
Description |
Color |
Recommended Protection |
| 0-2 |
No danger to the average person |
Green |
Wear sunglasses on bright days, use sunscreen if there is snow on the ground which reflects UV radiation, or if you have particularly fair skin. |
| 3-5 |
Little risk of harm from unprotected sun exposure |
Yellow |
Wear sunglasses and use sunscreen, cover the body with clothing and a hat, and seek shade around midday when the sun is most intense. |
| 6-7 |
High risk of harm from unprotected sun exposure |
Orange |
Wear sunglasses and use sunscreen having SPF 15 or higher, cover the body with sun protective clothing and a wide-brim hat, and reduce time in the sun from two hours before to three hours after noon (roughly 10:00 AM to 4:00 PM during summer). |
| 8-10 |
Very high risk of harm from unprotected sun exposure |
Red |
Wear sunscreen, a shirt, sunglasses, and a hat. Do not stay out in the sun for too long. |
| 11+ |
Extreme risk of harm from unprotected sun exposure |
Violet |
Take all precautions, including: wear sunglasses and use sunscreen, cover the body with a long-sleeve shirt and trousers, wear a very broad hat, and avoid the sun from two hours before to three hours after solar noon. |
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