Ancestors

Written by Kate Nyhan on 2025-01-19 at 18:00

Guess what! The Brookline Public Library has CO2 monitors that you can borrow! Very useful for checking out the ventilation in any indoor space that is ventilated (mechanically or naturally) with outdoor air. FREE!!!!!

https://brookline.minlib.net/Record/.b42432650

[#]Brookline #BrooklineMA #IndoorAirQuality #COVIDisAirborne #CovidConscious #CovidCompetent

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Written by Kate Nyhan on 2025-01-19 at 18:03

The Brookline Library has ten CO2 monitors; eight of them are currently on the shelf waiting for you to pick them up and take them home (or out and about) for a couple weeks.

Four in the main library in #BrooklineVillage

Two in the branch in #CoolidgeCorner

Two in the branch in #Putterham

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Written by Kate Nyhan on 2025-01-19 at 18:13

Some basics about CO2 ppm (parts per million):

There's some CO2 in outdoor air; my monitor is reading 433 right now in Washington Square. Think of that as the background level. Not great in terms of climate change, for sure, but this thread is about CO2 and indoor air quality/ventilation.

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Written by Kate Nyhan on 2025-01-19 at 18:17

Then I went inside to pick up takeout. Now the CO2 ppm reading is 577. That increase from the background level? That extra CO2 in the air in the restaurant might have come from the customers and the workers breathing out, and from the gas burners in the kitchen.

577 is higher than the outdoor number, but it's also quite low indeed for an indoor space.

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Toot

Written by Ruth [☕️ 👩🏻‍💻📚✍🏻🧵🪡🍵] on 2025-01-19 at 18:31

@kdnyhan I still remember the joy of traveling to Australia and finding a quiet airport food court away from the normal one (Chicago?) with levels of about 577 so I felt ok actually unmasking and eating

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Descendants

Written by Ruth [☕️ 👩🏻‍💻📚✍🏻🧵🪡🍵] on 2025-01-19 at 18:32

@kdnyhan your grocery store number is wild to me though!

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Written by Kate Nyhan on 2025-01-19 at 18:34

@platypus

One time I went to pick up takeout and the reading at the hostess's desk was above 3000. Yikes yikes yikes I have not been back.

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Written by Kathryn Greenhill on 2025-01-19 at 19:17

@kdnyhan @platypus I bought one when I started a job with lots of travel, to work out when to mask and when not to…

… biggest takeaway was to open the window & mask up in taxis. And, although a huge concert hall full of people was surprisingly OK, mingling unmasked during interval was a big no-no.

https://librariansmatter.com/blog/2024/02/04/co2-on-a-plane-and-in-a-taxi-and-an-uber-and-a-concert/

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