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Photochem Photobiol Sci. 2007 Aug;6(8):912-5; discussion 916-8. Epub 2007 Jun 21.

Comment on "the effects on human health from stratospheric ozone depletion and its interactions with climate change" by M. Norval, A. P. Cullen, F. R. de Gruijl, J. Longstreth, Y. Takizawa, R. M. Lucas, F. P. Noonan and J. C. van der Leun, Photochem. Photobiol. Sci., 2007, 6, 232.

Author information

1
Sunlight, Nutrition, and Health Research Center (SUNARC), 2115 Van Ness Avenue, San Francisco, CA 94109-2510, USA. wbgrant@infionline.net

Abstract

An increase in solar ultraviolet-B (UVB) radiation reaching the earth's surface is an important consequence of stratospheric ozone depletion. UVB has important effects on human health, both beneficial and harmful. Recent research has found that solar UVB reduces the risk of over 20 types of cancer, respiratory diseases caused by viruses, autoimmune diseases, and, likely, several other diseases, in addition to the well-known effects on bone diseases. On the other hand, solar UVB is an important risk factor for non-melanoma skin cancer and cataracts. Human epidemiological studies have provided evidence that solar UVA may be a more important risk factor for melanoma than UVB. If this result is correct, melanoma risk is not related to ozone depletion. We consider the net effect of solar UVB on human health to be beneficial at or near current levels.

PMID:
17668123
DOI:
10.1039/b705482c
[Indexed for MEDLINE]

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