Ultraviolet (UV) rays from the sun can penetrate and change the structure of skin cells. There are three types of UV rays: ultraviolet A (UVA), ultraviolet B (UVB) and ultraviolet C (UVC). Scientists believe UVA radiation can damage connective tissue and increase a person's risk for developing skin cancer. UVB rays penetrate less deeply into skin, but can still cause some forms of skin cancer. Natural UVC rays are absorbed by the Earth's atmosphere and do not pose a risk to workers.

 

Recommendations for worker protection from UV damage:

• Wear sunscreen with a minimum of SPF 15.
• SPF does not refer to protection against UVA. Products containing Mexoryl, Parsol 1789, titanium dioxide, zinc oxide, or avobenzone block UVA rays.
• Sunscreen performance is affected by wind, humidity, perspiration and proper application.
• Throw away old sunscreens; they lose their potency after 1-2 years.
• Apply sunscreens liberally (a minimum of 1 ounce) at least 20 minutes before sun exposure.
• Give special attention to covering the ears, scalp, lips, neck, tops of feet and backs of hands.
• Reapply sunscreens at least every two hours and each time a person gets out of the water or perspires heavily.
• Some sunscreens may lose efficacy when applied with insect repellents, necessitating more frequent application when the two products are used together.
• Dark clothing with a tight weave is more protective than light-colored, loosely woven clothing.
• High-SPF clothing has been developed to provide more protection for those with photosensitive skin or a history of skin cancer.
• Wear wide-brimmed hats and sunglasses with almost 100-percent UV protection and with side panels to prevent excessive sun exposure to the eyes.