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UV-A radiation

Ultraviolet with wavelengths of 320-400 nm. UV-A can be transmitted through glass. Notes: - front windshields in automobiles block 96% of UVA light - shatterproof front windshields contain 2 layers of glass with a UVA-blocking layer of plastic in between - side windows block 71% of UVA light (variable, 59-96%) - side windows are made of a single layer of glass - tinting has no effect [3]

General

ultraviolet radiation

References

  1. Stedman's Medical Dictionary 26th ed, Williams & Wilkins, Baltimore, 1995
  2. Sunlight, Ultraviolet Radiation, and the Skin http://consensus.nih.gov/cons/074/074_intro.htm
  3. Boxer Wachler BS Assessment of Levels of Ultraviolet A Light Protection in Automobile Windshields and Side Windows. JAMA Ophthalmol. Published online May 12, 2016 PMID: 27258091 http://archopht.jamanetwork.com/article.aspx?articleid=2522190 - Weiss JS UV-A Protection From Auto Glass, Cataracts, and the Ophthalmologist. JAMA Ophthalmol. Published online May 12, 2016 PMID: 27258328 http://archopht.jamanetwork.com/article.aspx?articleid=2522181

Component-of

oral psoralen & ultraviolet (UV) A light (PUVA)