Bing found the following results
Ultraviolet index - Wikipedia
The UV Index Explained - WebMD
The UV index and sunburn risk | Cancer Research UK
UK weather: What is the UV Index and why could it break UK records…
How to Understand the UV Index - Verywell Health
Radiation: The ultraviolet (UV) index - World Health Organization …
The UV Index: How Much Is Your Skin in Danger? | Weather.com
UV levels - Met Office
What is the UV index? An expert explains what it means and how …
Ultraviolet radiation - World Health Organization (WHO)