Is this why in some classrooms I felt inexplicably sleepy? I wonder how hard it is to get a CO2 measurement. One of my kids mentioned being very tired in certain classes, too.
Rachel
-----Original Message-----
From: Emily Russell <linninniach@gmail.com>
To: Laura Dickerson <lauradi@rcn.com>
Cc: Boston Change Ringers <boston-change-ringers@cosmos.phy.tufts.edu>
Sent: Tue, Dec 14, 2021 3:03 pm
Subject: Re: Ventilation
I was curious what they mean by "well" or "poorly" ventilated, so clicking through to the study...
"In 60 percent of the classrooms, CO2 levels exceeded 2000 parts per million (ppm). Elevated CO2 concentrations can impair cognitive performance and thus learning ability."
"In high-risk schools, it often exceeded 3,000 parts per million (ppm) – a level significantly higher than the recommended level of no more than 1,000 ppm."