Most black lights that are comercially available produce UV
-b and even UV
-c. However, the phosphorous coating and the tinted black glass are designed to filter most of the UV
-b and UV
-c rays leaving mostly UV
-a. Most UV
regardless of its specific bandwidth is filtered by the atmosphere (largely the ozone layer - what we have left anyway
) And even more is filtered by the water in which our Marine creatures live. Therefore, it seems prudent to try to avoid bombarding our reluctant guests with more UV
then they typically would be exposed to. It's not likely that this is good for them.
Quote from research site:
Both UVB and UVA radiation can give rise to ROS-related point mutations (e.g. G to T) and crude genomic alterations (e.g. deletions) which may not be recognized as caused by UV radiation. Copyright 2002 S. Karger AG, Basel
UVA's do not heat the skin, but penetrate in-depth and provoke irreversible damage to the skin::
Intolerance reactions and age spots on the face, dÃ©colletÃ© and hands.;
"Actinic" ageing which accelerates the skin's natural ageing process (formation of deep wrinkles, loss of firmness)
However, the ultimate danger is when the skin capital, under the strain of excessive exposure to the sun, runs out. It can no longer assure the defence of DNA of the skin's cells. A carcinogenic process can therefore be triggered.
The above qoutes are from PubMed and Vichey Med
Much other research indicates that while UV
-a is not as dangerous as UV
-b both are unatural and can cause damage at the cellular level.
So, as I mentioned before, I'd leave the balck lights in the lab
If something glows from the UV it is emitting that energy and there is thus less energy absorbed to cause intercellular problems.
The fact that an organism is glowing, i.e. giving off energy and therefore less is absorbed, I don't think is exactly correct. Because in order for the atom to release energy in the form of an emitted photon it must first absorb energy to 'kick' an electron(s) into a higher shell (for example shell K
to shell L). The energy that was originally absorbed by the atom is then released when the electron returns to it's original shell in the atom. This results in the emmission of a photon - this is exactly the process which causes huge problems in our DNA and Cells when we are exposed to UV
. Generally, though, we are not exposed to enough to make us glow