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• environmental protection agency (usa) - sunwise school program
• agence de protection de l'environnement - epa (États-unis) - sunwise school program (anglais seulement)
Ultimo aggiornamento 2015-05-14
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• www.epa.gov/sunwise the ozone layer experimental studies division of environment canada
• www.epa.gov/sunwise la couche d'ozone division des études expérimentales d'environnement canada
Ultimo aggiornamento 2015-05-14
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the uv index meteorological service of canada . . . . . . . . . . . . . . . . . . . . . . . . http://www.msc-smc.ec.gc.ca/uvindex united states climate prediction center . . . . . . . . . . . http://www.cpc.ncep.noaa.gov/products/stratosphere/uv_index world health organization . . . . . . . . . . . . . . . . . . . . . . . . http://www.who.int/inf-fs/en/fact133.html u.s. environment protection agency . . . . . . . . . . . . . . . . . . . . . . . http: //www.epa.gov/sunwise
indice uv service météorologique du canada : . . . . . . . . . . . . . . . . . http://www.msc-smc.ec.gc.ca/uvindex united states climate prediction center : . . . . . . . . http://www.cpc.ncep.noaa.gov/products/stratosphere/uv_index organisation mondiale de la santé : . . . . . . . . . . . . . . . . http://www.who.int/inf-fs/fr/am133.html united states environment protection agency . . . . . . . . . . . . . . . . . . http://www.epa.gov/sunwise
Ultimo aggiornamento 2015-05-14
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