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Rayonnement UV solaire en France métropolitaine et à La Réunion : érythème et synthèse de la vitamine D

Abstract : Solar UV radiation induces beneficial and detrimental effects on human health. Health agencies recommend avoiding sun exposure when UV radiation is maximum: between 2 h before and after solar noon in summer. A reduction in UV exposure being susceptible to reduce vitamin D synthesis, it is useful to estimate and compare exposure durations leading to erythema and to sufficient vitamin D production. These duration times were calculated using UV radiation measurements from spectroradiometers operating continuously at 3 French sites. One observes that exposure duration requested for vitamin D synthesis is generally shorter than that inducing erythema. Moreover, the time periods where limited solar exposure is recommended should be extended, especially at low latitude locations: in summer at least between 3 h before and after solar noon at mainland sites and, at La Réunion, between 4 h before and after solar noon. In spring and autumn, prudence is also needed.
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https://hal.univ-reunion.fr/hal-03675602
Contributor : thierry portafaix Connect in order to contact the contributor
Submitted on : Monday, May 23, 2022 - 11:37:15 AM
Last modification on : Thursday, September 1, 2022 - 11:10:45 AM

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Colette Brogniez, Jean-François Doré, Frédérique Auriol, Pierre Cesarini, Fanny Minvielle, et al.. Rayonnement UV solaire en France métropolitaine et à La Réunion : érythème et synthèse de la vitamine D. La Météorologie, Météo et Climat, 2022, pp.033. ⟨10.37053/lameteorologie-2022-0034⟩. ⟨hal-03675602⟩

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