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The Ultraviolet Index: a useful tool.

J P Kinney1, C S Long

  • 1Palm Beach Medical Group, West Palm Beach, FL, USA.

Dermatology Online Journal
|May 1, 2001
PubMed
Summary

The Ultraviolet Index (UVI) provides daily UV radiation forecasts for major US cities. Educational graphics, similar to weather forecasts, are recommended to improve public understanding and protective behaviors.

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Area of Science:

  • Environmental science
  • Public health
  • Atmospheric science

Background:

  • The Ultraviolet Index (UVI) was established in the US in 1994, building on international UV alert systems.
  • It's a daily National Weather Service prediction calculating surface UV radiation levels at solar noon.
  • The UVI is categorized into five exposure levels by the EPA, with recommended protective actions.

Purpose of the Study:

  • To assess the effectiveness of UVI dissemination and public understanding.
  • To propose improved methods for communicating UV radiation risks.
  • To enhance public awareness and protective behaviors regarding UV exposure.

Main Methods:

  • The UVI calculation integrates five key data elements for 58 major US population centers.
  • Public awareness and behavior are assessed through US surveys.
  • Comparison of UVI communication strategies with precipitation forecasts is explored.

Main Results:

  • While daily reminders impact awareness in Canada, US surveys suggest a need for enhanced educational graphics.
  • The UVI prediction is a simple numeric value linked to EPA-defined exposure levels.
  • The analogy between UV Index and precipitation forecasts shows potential for improved understanding.

Conclusions:

  • Educational graphics are crucial for improving public comprehension of the UVI in the US.
  • The UVI communication can be enhanced by likening it to familiar daily weather predictions.
  • Wider dissemination through schools, camps, and dermatology meetings, using a rain/shine analogy, is proposed.

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