The Science Behind UV Index

The UV index is often used in the Summer months when the sun is at its strongest over the United States. What the UV index basically is a scale that helps you avoid harmful exposure to UV radiation from the sun. This scale goes from 0 all the way up to 11+. Depending on what the maximum number is on the scale for the day, that determines what you should do if you decide to be outside.​

0-2 Low UV Index: Suggests for you to wear sunglasses and sunscreen if you burn easily.​

3-5 Moderate UV Index: Stay in the shade during the midday hours and apply sunscreen to you skin every two hours.​

6-7 High UV Index: Reduce exposure to the sun between 10AM and 4PM, wear protective clothing, and put on sunscreen every two hours.​

8-10 Very High UV Index: Minimize exposure between 10AM and 4PM, wear protective clothing, and put on sunscreen every two hours.

​11+ Extreme UV Index: Avoid any sun exposure between 10AM and 4PM, wear protective clothing, and put on sunscreen every two hours.​

Now you know the science behind UV index.

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