If these lights are because of the phospor failing, isn't the UV being blasted out? Wouldn't there be a health hazard at least to your eyes?
There should be zero UV emission as the pump LEDs are blue and, as is typical for LEDs, have a very narrow emission spectrum which would not extend to UV.
While UV LEDs exist, they are substantially more expensive. They seem a poor choice for illumination, as you would need to phosphor convert the blue light as well as red/green, reducing efficiency and complicating phosphor design.
Blue light alone is unlikely to have major health effects at the intensities seen here. There is some concern over disruption to circadian rhythms, and there is a current fad about blue light reduction some of which is questionable at best.
At high intensities, any visible light can cause eye injury due to direct phototoxicity (prolonged saturation of photoreceptors results in biochemical imbalance which is toxic and can lead to cell injury). This can occur if you stare directly at a high intensity LED especially if it has collimating optics (eclipse viewing with an inadequate filter is a well recognised cause, as is deliberate misuse of laser pointers), but this is unlikely to occur by accident.