DAVIS Vantage Pro User Manual & Setup Manual page 53

UV Dose and Sunburn - Use this plot to estimate the MED dose leading to sunburn. A person
with Type II (Environment Canada) skin type might choose 0.75 MED as the maximum for the
day; in contrast, a person with Type V (Environment Canada) Skin Type might consider 2.5
MEDs a reasonable dose for the day. NOTE: the Vantage Pro assumes a Fitzpatrick (Environ-
ment Canada) Skin Type of II.
Vantage Pro can also display UV Index, an intensity measurement first defined
by Environment Canada and since been adopted by the World Meteorological
Organization. UV Index assigns a number between 0 and 16 to the current UV
intensity. The US EPA categorizes the Index values as shown below. The lower
the number, the lower the danger of sunburn. The Index value published by
the U.S. National Weather Service is a forecast of the next day's noontime UV
intensity. The Index value displayed by the Vantage Pro is the result of a real-
time measurement.
Vantage Pro Manual
T A4: UV I E
ABLE NDEX AND XPOSURE
I V E
NDEX ALUES XPOSURE
0 - 2 Minimal
3 - 4 Low
5 - 6 Moderate
7 - 9 High
10+ Very High
Weather Conditions Measured/Calculated
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