Abstract
A simple disposable chemical UVB radiation dosimeter with silver-mercury-oxalate suspension, SUNTEST, was developed for use by the general public. Its spectral sensitivity curve closely matches the erythemal action spectrum. SUNTEST takes account of the variables influencing the length of sunbathing. The dose of solar UV radiation can be evaluated from the darkening of the dosimeter, from white to dark brown. On the basis of the results of a 5 min exposure, recommendations are given for safe exposure times (which do not produce sunburn) for different skin types. Regular use of this simple UVB dosimeter will contribute to the prevention of acute adverse effects of solar exposure; like any limitation of UV exposures, it may be expected to reduce also the late adverse effects, including skin malignancies.
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