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405nm is not UV and not even close the ionizing UV band. It's UVB that causes melanomas. UVC is even worse but you don't find that naturally on earth because it's filtered by the atmosphere.
LASERBEE: True it is possible to damage DNA from excessive heating (called denaturing) but that is independent of the wavelength. Any wavelength capable of being absorbed in high enough densities can damage surrounding tissue but any other heat source will do the same thing. Generally, once DNA is denatured it's damaged beyond repair and cannot be transcribed so the potential for any cancers is very low. Oxygen radicals are often the culprit from UVB exposure in the rise of melanomas.
Hey MrGreenJeans...
You need to look at the [ ] Smiley I used... It was meant as a joke...
I have no clue as to the truth of what I posted...
Man... I hate explaining humor.... either you get it or you don't..:san:
BTW the name is lasersbee....
Jerry
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