Construction
Safety Association of Ontario
People who work outdoors should avoid prolonged exposure to sunshine because of the damaging effects of ultraviolet (UV) radiation from the sun. Excessive exposure
to the sun's radiation over the years is a factor related to premature
skin aging, skin cancer, and cataracts in older people.
The UV levels are highest in spring and summer between 10 a.m. and 4 p.m. At noon on a clear summer day, for example, it can take only 15 minutes to cause a sunburn on unprotected fair skin. To reduce the exposure of workers to ultraviolet rays while working in direct sunlight when UV levels are high, the following precautions are recommended:
For information on the CSA draft Standard Z94.5, please contact the Canadian Standards Association at (416) 747-4000 or write to 178 Rexdale Blvd., Rexdale, ON M9W 1R3. Please photocopy Ministry of Labour Alerts, distribute them widely and post them where people will see them. Produced by the Radiation Protection Service, Ministry of Labour Alert 1/0394R Rev. 18/03/94. ISSN 1195-5228 This document appears in the eLCOSH website with the permission of the author and/or copyright holder and may not be reproduced without their consent. eLCOSH is an information clearinghouse. eLCOSH and its sponsors are not responsible for the accuracy of information provided on this web site, nor for its use or misuse. Copyright information: © Queen's Printer for Ontario, 1999 This information
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