This article mentions moon dust as "subjected to a millenia of UV radiation" as if it's a bad thing. UV would simply irradiate the dust, not make it more hazardous correct? Perhaps they meant "a millenia of cosmic radiation" which would be much more problematic, no? If this line of questioning seems pedantic, it's because I'm trying to suss out some details for some fiction writing. Any input would be helpful, specifically, what are some of the hazards of moon material coming to Earth's surface?