Strongest UV Rays Measured in South America

July 8, 2014 7:00 PM

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Strongest UV Rays Measured in South America

A "perfect storm" of ozone-destroying chemicals sent cancer-causing UV-B radiation soaring at the top of a South American volcano in 2003, a new study reports.

On Dec. 29, 2003, a world-record UV index of 43.3 was detected at Bolivia's Licancabur volcano. The UV index is used to forecast the strength of the sun's ultraviolet rays.

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