Ultraviolet light (UVC) can destroy covid19. Estimates are 67J/m^2 (6.7mJ/cm^2) will deactivate to 99.9%.
This video talks about what I've learned on the topic and how I use it to decontaminate the mail.
There are links to research papers showing the "dose" ("fluence") of UVC energey in mJ/cm^2. I show how to convert the units to mWatt seconds / cm^2. And how to calculate the average UVC power output from the typical ebay lamp. Always wear polycarbonate safety glasses around UVC.
Links on the subject I found useful:
2020 COVID-19 Coronavirus Ultraviolet Susceptibility (67J/m^2 see Table 2
https://www.researchgate.net/publication/339887436_2020_COVID-19_Coronavirus_Ultraviolet_Susceptibility
Dose to inactivate multiple pathogens
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3925713/table/T2/?report=objectonly
Paper "Can biowarfare agents be defeated with light?"
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3925713/
International ultraviolet association COVID 19 topic
iuva.org/IUVA-Fact-Sheet-on-UV-Disinfection-for-COVID-19
UV - FAQ
http://www.iuva.org/UV-FAQs
The Effects of Mercury Vapour Pressure
http://lamptech.co.uk/Documents/M3%20Spectra.htm
Medium pressure mercury power distribution
https://www.eta-uv.com/en/products/uv-lamps
Testing UV absorption eyewear and sunscreen with a deuterium light source (video)
https://www.youtube.com/watch?v=vwsHRrDYu5o
UV Lamps & UVC Lamp Types
americanairandwater.com/lamps.htm
Ultraviolet Germicidal Irradiation Handbook
https://www.researchgate.net/publication/278717381_Ultraviolet_Germicidal_Irradiation_Handbook
True low pressure ercury lamps are not visible light
"Looking at Mercury Vapour - Periodic Table of Videos"
https://www.youtube.com/watch?v=7ZT7xqwk84E
No comments:
Post a Comment