|Not as Green as first thought?|
Here is the sting in the tail of the study:The curlicue compact fluorescent lamps (CFLs) oft touted as an Earth-friendly alternative to standard incandescent bulbs may cause skin damage, according to a new study by researchers at Stony Brook University.
The bulbs are already known to pose hazards from using mercury, a toxic element, though in very small quantities, as lighting manufacturers are quick to point out.
Now researchers have found that ultraviolet radiation seeping through CFLs may damage skin cells. Miriam Rafailovich, a professor of materials science and engineering at Stony Brook, led the research after reading an article in an Israeli newspaper that reported a spike in skin cancer on a communal farm when residents switched to fluorescent bulbs.
"In the past two years some disturbing reports have surfaced mostly in the European Union literature, which indicate that exposure to CFL bulbs might be responsible for exacerbating certain skin conditions, such as photodermatoses and skin cancer in humans," says the paper, published last month in the journal Photochemistry and Photobiology.
Using CFL bulbs from different manufacturers purchased from retailers on Long Island, the team exposed cultured skin cells in a petri dish to the bulbs mounted in a desk lamp from different distances for varying periods. The team measured how much UV light was emitted and then assessed how the cells responded.
"All of them had some [UV emissions], but some were a lot worse than others," Rafailovich said of the bulbs.
Article first published online : 20 JUL 2012, DOI: 10.1111/j.1751-1097.2012.01192.x