No evidence of induced skin cancer or other skin abnormalities after long-term (66 week) chronic exposure to 222-nm far-UVC radiation

Summary

Hairless mice exposed to 222 nm light for 66 weeks showed no skin cancer or other skin abnormalities, in contrast to mice exposed to conventional 254 nm UV-C. An animal study; people were not tested.

Key points

• 66 weeks of exposure in hairless mice.
• No skin cancer or other abnormalities with 222 nm light.
• Animal study: results may not carry over to people.