This was really interesting. I am thinking bout various work environments of people who had to show up during the lockdowns and thinking about how to both protect them and factor in the co-morbities they may bring to the table. That research is likely farther off.
Also, as I work with meat production plants with high levels of ammonia, chlorine and organic particulate matter...how do those higher levels interact with GUV and change the smog calculations
I've been following you for quite some time on Twitter, and I love your effort on promoting the airborne nature of this virus, and the ways to mitigate transmission.
Our government (The Netherlands) has _decreased_ the ventilation requirements for restaurants, bars and clubs (I think by a factor of 5!) last year, in the midst of the pandemic, and they are proud of it...
I can't afford a far-UVC installation, so have been using 254 and HEPA in our kitchen, where we "entertain" visitors (they might disagree). Also use a co2.click monitor.
I would risk more UV, especially if my filter removes other contaminants that UV might interact with.
However, near me in France I have never seen any IAQ efforts - nada.
So I also use N95 Auras when indoors away from home.
thank you for the great write up. When you refer to "low ventilation" (typical of residential) can you tell us what approximate physical ACH that assumes?
Thanks for this analysis. GUV feels like a political nonstarter. No matter how safe it actually is, "the skin damage and smog levels are tolerable" is just not going to fly with people. There will be enough objectors that no building manager is going to want to install them.
I would much rather have a CO2 monitor in every room. It's a useful proxy, nobody will be bothered, and what gets measured gets fixed.
Wonderful post, thank you. Can I ask what quantity of GUV is used in the calculations? I would estimate that the higher the GUV power output the higher the smog (for a set wavelength)
This was really interesting. I am thinking bout various work environments of people who had to show up during the lockdowns and thinking about how to both protect them and factor in the co-morbities they may bring to the table. That research is likely farther off.
Also, as I work with meat production plants with high levels of ammonia, chlorine and organic particulate matter...how do those higher levels interact with GUV and change the smog calculations
I've been following you for quite some time on Twitter, and I love your effort on promoting the airborne nature of this virus, and the ways to mitigate transmission.
Our government (The Netherlands) has _decreased_ the ventilation requirements for restaurants, bars and clubs (I think by a factor of 5!) last year, in the midst of the pandemic, and they are proud of it...
I hope they will one day listen to you.
Fantastic and clear paper, thank you.
I can't afford a far-UVC installation, so have been using 254 and HEPA in our kitchen, where we "entertain" visitors (they might disagree). Also use a co2.click monitor.
I would risk more UV, especially if my filter removes other contaminants that UV might interact with.
However, near me in France I have never seen any IAQ efforts - nada.
So I also use N95 Auras when indoors away from home.
Avoided infection so far...
Does the emissions profile of GUV depend at all on the type of light source, e.g. LEDs vs krypton excimer lamps?
thank you for the great write up. When you refer to "low ventilation" (typical of residential) can you tell us what approximate physical ACH that assumes?
Thanks for this analysis. GUV feels like a political nonstarter. No matter how safe it actually is, "the skin damage and smog levels are tolerable" is just not going to fly with people. There will be enough objectors that no building manager is going to want to install them.
I would much rather have a CO2 monitor in every room. It's a useful proxy, nobody will be bothered, and what gets measured gets fixed.
Wonderful post, thank you. Can I ask what quantity of GUV is used in the calculations? I would estimate that the higher the GUV power output the higher the smog (for a set wavelength)