How does this relate to public health?
Exposure to ultraviolet (UV) rays from the sun (shortwave radiation) is said to cause 65% to 90% of melanoma of the skin, which accounts for three-fourths of all skin cancer deaths.1,2 Additionally, the sunâ€™s UV rays can also cause cataracts and other damage to the eye.3 On the other hand, exposure to UV rays impacts vitamin D circulation, which is said to be a protective factor against colon or rectum cancer.4
1Centers for Disease Control and Prevention. Basic information about skin cancer. April 24, 2012. <http://www.cdc.gov/cancer/skin/basic_info/> Accessed November 17, 2012.
2National Cancer Institute. Skin cancer. (n.d.) <http://www.cancer.gov/cancertopics/types/skin> Accessed January 27, 2012.
3World Health Organization. Ultraviolet radiation and human health. December 2009. <http://www.who.int/mediacentre/factsheets/fs305/en/index.html> Accessed November 17, 2012.
4Portier CJ, et al. 2010. A human health perspective on climate change: a report outlining the research needs on the human health effects of climate change. Research Triangle Park, NC: Environmental Health Perspectives/National Institute of Environmental Health Sciences. doi:10.1289/ehp.1002272 <www.niehs.nih.gov/climatereport> Accessed November 17, 2012.