>So I was thinking maybe a UV light might be part of some sort of detection system.
>Also, it occurs to me, that UV light kills germs and such
Both are correct. But there was a report that the
Trump supporters were blinded by a $250 UV Light that can ionize biological organisms. So, I was saying that a water container can also capture pollutants. Like I said, it could be harmless too, which means for other purposes as you stated.