Re: fluorescents and UV: one particular range of 1980s Siemens light swtiches is extremely prone to yellowing if exposed to any direct sunlight (sold in Austria and Germany in the mid- to late 80s and early 90s I think). I know some in an English basement that never get any sun and those still look like new. Now there is one university restroom that doesn't have a window, not even the hallway in front of the door. So the only light in there is a CFL in a recessed fixture. The light switches in the stalls (pretty solid, there are tiled drywall stalls floor to ceiling) are as yellow as they ever get. So yes, apparently fluorescents do emit a considerable amount of UV.
