VitD-ez Duration of Vitamin D Synthesis in Human Skin

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Version 1.0, Copyright © 2005 Ola Engelsen
Norwegian Institute for Air Research, Email: ola.engelsen@nilu.no

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Time and location

Month Day

City
Latitude (degs N) Longitude (degs E)


Sky condition


Ozone layer thickness


Surface altitude km. Range [0.0-6.0] km

Surface type