Verified answer

The mercury, about the size of a pin head, is usually contained in the electrode area. This is nothing new as it has been used to energize argon gas for decades since its invention. In comparison to the amount of mercury that was contained in oral thermometers, this is miniscule. As with anything, take precaution in handling. As a light source though, there is no harm. If you break one, take precautions and clean up the area.

Chronic effects from long-term exposure to UV include premature skin aging, stronger allergic reactions, cataracts, blood vessel damage, a weakened immune system, and skin cancer.

Mercury risk is minimal