There is a low chance of virus transmission outdoors, provided that everyone is using a face-covering and keeping physically-distanced.
However, the indoors seems to present larger problems, especially in terms of potential aerosol-based (i.e., due to it hanging in the air, rather than falling on the ground) transmission. This is because aerosols don't disperse as much in enclosed spaces.
Hospitals and other places have long used UV light, e.g., inside air ducts, to disinfect recirculating indoor air. There has been a (small) resurgence of interest in the broader use of UV light for this purpose, which you can read about here.
There has been a little bit of discussion in parts of the theme park / museum industry about whether UV light inside air ducts would be feasible. Maybe a Disney insider can tell us whether there has been the case at Disney. The main downside is that installing/maintaining lights inside air ducts would be expensive - but not prohibitively so, especially compared with many other expensive projects of various types. I hope this gets discussed (further?) at Disney, since it seems to have real potential, but we shall see...
However, the indoors seems to present larger problems, especially in terms of potential aerosol-based (i.e., due to it hanging in the air, rather than falling on the ground) transmission. This is because aerosols don't disperse as much in enclosed spaces.
Hospitals and other places have long used UV light, e.g., inside air ducts, to disinfect recirculating indoor air. There has been a (small) resurgence of interest in the broader use of UV light for this purpose, which you can read about here.
There has been a little bit of discussion in parts of the theme park / museum industry about whether UV light inside air ducts would be feasible. Maybe a Disney insider can tell us whether there has been the case at Disney. The main downside is that installing/maintaining lights inside air ducts would be expensive - but not prohibitively so, especially compared with many other expensive projects of various types. I hope this gets discussed (further?) at Disney, since it seems to have real potential, but we shall see...