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<p class="MsoNormal"><span style="font-style: normal;" class="">Dear All,<o:p class=""></o:p></span></p>
<p class="MsoNormal">Firstly, the University has changed its guidance and now all non-exempt students must wear face coverings in class. </p>
<p class="MsoNormal">Further, as you may know, the Department has purchased CO2 monitors to monitor ventilation whilst teaching. Below is some guidance on using them. We will provide information later on monitor pick up and drop off on your teaching day.</p>
<p class="MsoNormal"><span style="font-style: normal;" class="">Best<o:p class=""></o:p></span></p>
<p class="MsoNormal"><span style="font-size: 13.5pt;" class="">John</span></p>
<p class="MsoNormal"><span style="font-size: 13.5pt; font-family: Tahoma, sans-serif;" class="">—————————————<o:p class=""></o:p></span></p>
<p class="MsoNormal"><span style="font-size: 13.5pt; font-family: Tahoma, sans-serif;" class="">Professor John Jeffers<br class="">
Director of Teaching<br class="">
Department of Physics<br class="">
University of Strathclyde</span></p>
<p class="MsoNormal"><span style="font-family: Tahoma, sans-serif; font-size: 13.5pt;" class=""><a href="mailto:physics-director-teaching@strath.ac.uk" class="">physics-director-teaching@strath.ac.uk</a></span></p>
<div class="">———————————————————</div>
<div class=""><br class="">
</div>
<p class="MsoNormal"><span style="font-size:13.5pt;font-family:"Tahoma",sans-serif;
mso-fareast-font-family:"Times New Roman";color:#111111;mso-fareast-language:
EN-GB" class="">Staff should read the advice on this Health and Safety Executive page. <span style="color:blue" class=""><a href="https://www.hse.gov.uk/coronavirus/equipment-and-machinery/air-conditioning-and-ventilation/identifying-poorly-ventilated-areas.htm" class="">https://www.hse.gov.uk/coronavirus/equipment-and-machinery/air-conditioning-and-ventilation/identifying-poorly-ventilated-areas.htm</a></span></span></p>
<p class="MsoNormal"><span style="font-size: 13.5pt; font-family: Tahoma, sans-serif;" class=""><o:p class=""></o:p></span></p>
<p class="MsoNormal"><span style="font-size:13.5pt;font-family:"Tahoma",sans-serif;
mso-fareast-font-family:"Times New Roman";color:#111111;mso-fareast-language:
EN-GB" class="">Important quotes from the above source</span><span style="font-size: 13.5pt; font-family: Tahoma, sans-serif;" class=""><o:p class=""></o:p></span></p>
<p class="MsoNormal"><span style="color: rgb(17, 17, 17); font-family: Tahoma, sans-serif; font-size: 13.5pt;" class="">"CO2 measurements should be used as a broad guide to ventilation within a space rather than treating them as ’safe thresholds’."</span></p>
<p class="MsoNormal"><span style="font-size: 13.5pt; font-family: Tahoma, sans-serif;" class=""><o:p class=""></o:p></span></p>
<p class="MsoNormal" style="margin-bottom:12.0pt;vertical-align:baseline"><span style="font-size:13.5pt;font-family:"Tahoma",sans-serif;mso-fareast-font-family:
"Times New Roman";color:#111111;mso-fareast-language:EN-GB" class="">"Outdoor levels are around
400ppm and indoors a consistent CO2 value less than 800ppm is likely to indicate that a space is well ventilated.<o:p class=""></o:p></span></p>
<p class="MsoNormal" style="margin-bottom:12.0pt;vertical-align:baseline"><span style="font-size:13.5pt;font-family:"Tahoma",sans-serif;mso-fareast-font-family:
"Times New Roman";color:#111111;mso-fareast-language:EN-GB" class="">An average of 1500ppm CO2
concentration over the occupied period in a space is an indicator of poor ventilation. You should take action to improve ventilation where CO2 readings are consistently higher than 1500ppm. <o:p class=""></o:p></span></p>
<p class="MsoNormal"><span style="font-size:13.5pt;font-family:"Tahoma",sans-serif;
mso-fareast-font-family:"Times New Roman";color:#111111;mso-fareast-language:
EN-GB" class="">However, where there is continuous talking or singing, or high levels of physical
activity (such as dancing, playing sport or exercising), providing ventilation sufficient to keep CO2 levels below 800ppm is recommended.” </span></p>
<div class=""><br class="">
</div>
<p class="MsoNormal"><span style="font-size: 13.5pt; font-family: Tahoma, sans-serif;" class=""><o:p class=""></o:p></span></p>
<p class="MsoNormal"><span style="font-size:13.5pt;font-family:"Tahoma",sans-serif;
mso-fareast-font-family:"Times New Roman";color:#111111;mso-fareast-language:
EN-GB" class="">In tutorials or laboratories the tutor may sometimes be talking for an extended
period. Therefore we suggest that</span></p>
<p class="MsoNormal"></p>
<ul class="MailOutline">
<li class=""><span style="font-family: Tahoma, sans-serif; font-size: 13.5pt;" class="">Students should be advised to remain in a well-ventilated area until near the class start time and should leave the teaching room quickly after the class ends, even if they
have another class in the same room.</span></li><li class=""><font face="Tahoma, sans-serif" size="4" class="">No further action needs to be taken whilst the CO2 level </font><font face="Tahoma, sans-serif" class="">in the</font><font face="Tahoma, sans-serif" size="4" class=""> teaching room is below 800ppm. </font></li><li class=""><span style="font-family: Tahoma, sans-serif; font-size: 13.5pt;" class="">If the CO2 level is consistently above 800ppm a range of mitigating measures could be taken, as appropriate to the circumstances. </span></li></ul>
<p></p>
<blockquote style="margin: 0 0 0 40px; border: none; padding: 0px;" class="">
<p class="MsoNormal"><span style="font-size: 13.5pt; font-family: Tahoma, sans-serif;" class="">Examples include: Opening more doors or windows, asking a fraction of the students to leave and go to another room (if such a free room exists nearby and if it is
possible to continue teaching the split class in this fashion), fractions of the students taking short breaks during the class, limiting the amount of continuous talking done by the class tutor and students.</span></p>
</blockquote>
<p class="MsoNormal"></p>
<ul class="MailOutline">
<li class=""><span style="font-family: Tahoma, sans-serif; font-size: 13.5pt;" class="">If the CO2 level is above 1000ppm for an extended period more significant action could be taken, which may include asking all students to leave the class early or for a
limited period whilst the air quality improves. </span></li></ul>
<p></p>
<p class="MsoNormal"><span style="font-family:"Times New Roman",serif;mso-fareast-font-family:
"Times New Roman";mso-fareast-language:EN-GB" class=""> </span></p>
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