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Answer to Question #5498 Submitted to "Ask the Experts"

Category: Consumer Products — Watches, Clocks, and other Glow-in-the-Dark

The following question was answered by an expert in the appropriate field:

Q

My child, age 7, was recently given a gift of a matching duvet and pillow slip with images of planets and spaceships that glow in the dark. I do not know what substance causes the fluorescence or phosphorescence. Is there a risk that exposure to such an item every night—approximately 10 hours—could, over a period of time, result in radiation-related health risks?

A
Your child is indeed fortunate to have a concerned father like you. But let me allay your fears: many nonradioactive substances can glow in the dark, and it is extremely unlikely that your child's duvet and pillow slip are radioactive. Hence, there is no health risk from exposure to radiation. Radioactivity is strictly controlled by both federal and state regulatory bodies, and it would be virtually impossible for a manufacturer to make such a product containing radioactive material. So both you and your child should rest easy.

Ron Kathren, CHP

Editor's Note: See Ask the Experts Q1582 for more on glow-in-the-dark items.
Answer posted on 1 August 2006. The information and material posted on this Web site is intended as general reference information only. Specific facts and circumstances may alter the concepts and applications of materials and information described herein. The information provided is not a substitute for professional advice and should not be relied upon in the absence of such professional advice specific to whatever facts and circumstances are presented in any given situation. Answers are correct at the time they are posted on the Web site. Be advised that over time, some requirements could change, new data could be made available, or Internet links could change. For answers that have been posted for several months or longer, please check the current status of the posted information prior to using the responses for specific applications.
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