Take the 2-minute tour ×  Some background - Some recent research
has strongly suggested that UVA penetration into the skin is far
more dangerous than UVB, a very good example is this paper by
Agar et al. (2004).  My query is, is there a measure that
relates the UV wavelength with the penetration depth into human
skin? Related, is the answer to this related to skin types?  (I
understand that this may be migrated to Biology.SE).
share|improve this question Yeah, this seems much better off on
Bio.SE. Could you first clarify what you mean by "measure" here?
(i'll migrate afterwards) –  Manishearth Jun 14 '13 at 8:52 No
worries, what I am need of a measure is more of a relationship
between penetration depth into the skin and incident UV
radiation. –  user3795 Jun 14 '13 at 9:05 add comment  migrated
from physics.stackexchange.com Jun 14 '13 at 9:08   1 Answer  up
vote 5 down vote accepted  Solar UV radiation is broadly
classified as UV- A,B and C (Decreasing order of wavelengths).
Penetrating ability of UV is a n