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Your @UniversitiesUK employer has a legal duty to assess the risks of resuming teaching in person
. Make sure yours has assessed the risks of airborne (aerosol) Covid-19 transmission in the *specific* classrooms in which you're assigned to teach. 1/7
https://www.universitiesuk.ac.uk/policy-and-analysis/reports/Documents/2020/principles-and-considerations-emerging-from-lockdown-june-2020.pdf
. Make sure yours has assessed the risks of airborne (aerosol) Covid-19 transmission in the *specific* classrooms in which you're assigned to teach. 1/7https://www.universitiesuk.ac.uk/policy-and-analysis/reports/Documents/2020/principles-and-considerations-emerging-from-lockdown-june-2020.pdf
Rate of ventilation of classroom (either air changes per hour or litres per second) is crucial to an assessment of airborne transmission risk. Make sure your employer informs you of the ventilation rates of the classrooms they've assigned you. 2/7 https://www.thelancet.com/journals/lancet/article/PIIS2213-2600(20)30245-9/fulltext
. Make sure your employer informs you of the ventilation rates of the classrooms they've assigned you. 2/7 https://www.thelancet.com/journals/lancet/article/PIIS2213-2600(20)30245-9/fulltext
If they say they don't know 
, inform them that they'll need to investigate to determine what this rate is, in order to provide a proper assessment of the risks of teaching in the classrooms they've assigned you. Also request floorspace & ceiling height of your classrooms. 3/7
, inform them that they'll need to investigate to determine what this rate is, in order to provide a proper assessment of the risks of teaching in the classrooms they've assigned you. Also request floorspace & ceiling height of your classrooms. 3/7
You'll then be able to cross-check your employer's risk assessment by entering this information into this Covid-19 airborne transmission modeller by @jljcolorado, an atmospheric chemistry professor & aerosol expert at the University of Colorado. 4/7 https://tinyurl.com/covid-estimator
Covid-19 airborne transmission modeller by @jljcolorado, an atmospheric chemistry professor & aerosol expert at the University of Colorado. 4/7 https://tinyurl.com/covid-estimator
For more about this modeller, see this press release from the Cooperative Institute for Research in Environmental Sciences at the University of Colorado. 5/7 https://cires.colorado.edu/news/covid-19-airborne-transmission-tool-available
Please note that airborne transmission is not the only Covid-19 risk associated with classroom teaching. Transmission via large respiratory droplets is a distinct risk, which is addressed by 2m social distancing and face masks. 6/7
'Fomite' transmission (via touching contaminated objects) is a further risk of transmission, e.g., by sitting in the same seat an infected person occupied, even hours earlier. 7/7 https://twitter.com/MikeOtsuka/status/1269183157787602944
. 7/7 https://twitter.com/MikeOtsuka/status/1269183157787602944
PS: See this thread for more on the risks of aerosol transmission in classrooms. 1/ https://twitter.com/MikeOtsuka/status/1264117916691247104
. 1/ https://twitter.com/MikeOtsuka/status/1264117916691247104
And see also this thread. 2/2 https://twitter.com/MikeOtsuka/status/1276044443783770112
. 2/2 https://twitter.com/MikeOtsuka/status/1276044443783770112
