Interesting. You can get the proper article (without all the media spin) at
I'm interested to put this into perspective, and so far not managing to find enough appropriate data in a 5 minute search to fully satisfy myself. My feeling is this might be a but similar to the way that although radioactive exposure levels are quite low and relatively strictly enforced within controlled environments, you can exceed the limits by living in (for example) Aberdeen or Devon/Cornwall.
The "TLV" for the UVA/B/C quoted in the paper is 6 (UVC), 100 (UVB) and 1000 (UVA) mJ/cm2 in an 8 hour period.
I'm just trying to relate that to how much my exposure is in a European country on an average day when I walk around with my face and arms exposed. The best reference I found so far is Wikipedia, so I would welcome any better data sources if anyone can find them.
Wikipedia suggest that at the Equator, at midday, there is about 32W/m2 of UVA+UVB reaching the ground (UVC is blocked by air mass). [http://en.wikipedia.org/wiki/Ultraviolet
Also, about 98.7% of this is UVA, so roughly 31.6W/m2 of UVA and 0.4W/m2 of UVB. [http://en.wikipedia.org/wiki/H...ffects_of_sun_exposure
These figures would represent exposures in 8 hours of 91,000 (UVA) and 1000 (UVB) mJ/cm2, which clearly exceed the TLV by factors of 100 (UVA) and 10 (UVB). Now, this data is for the equator at midday so in Europe, even in full sun, the exposures will be lower, but by a factor of 10 or 100? Probably not!
So, my suspicion is that I could exceed the TLV figures for UVA and UVB in Europe just by walking around in my short sleeves, possibly even on a cloudy day. I'm more worried about this than spending 8 hours with my body rammed up within 20cm of a CFL (which never happens!).
Does anyone know any more about UVC?
Possibly I would be more concerned about UVA/UVB/UVC from my twin flat panel displays I spend 5 hours a day looking at. What are the regs/emissions from those? I have no idea!
Dr. Andrew Roscoehttp://personal.strath.ac.uk/andrew.j.roscoe