Hi, Sorry for the old bump, but I wanted to mention a few things about the LED lighting that is in St. Andrew.
First off, the fixtures, and LED's in general emit no UV.
The fixtures installed in St. Andrew are actually white LED's at about 6500k This was done as they originally wanted something very white, and very clean.
In comparison to the old fluorescents it does look blue though. After evaluation, it was decided that a warmer colour would look better, and 5000K seems to be the consensus.
The fixtures that run in the middle of the platform are colour adjustable, and can be set from 2700k ( Like an incandescent light bulb ) up to 6500k. They warmed some of the fixtures up two steps to 5000K and that was what most people liked better. This is just slighter cooler then a typical fluorescent.
This started before the "blue light prevents suicide" news started to happen, and the bluish light currently there had nothing to do with that, just a selection of colour temperature that looked great one place, and not as great in another place.