We care about school air quality, help you understand the effects of school air quality, and what can be done to help monitor and manage school air quality.

Joined January 2021
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CoSchools retweeted
Our Teacher Resource Pack is live! It enables schools without a #SAMHE monitor to access versions of our educational activities, together with teacher guidance and example #AirQuality data and graphs for pupils to work with. Download it FREE👉 samhe.org.uk/get-involved #ukedchat
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CoSchools retweeted
Thanks for reading and, as I have said before, X is not designed for in-depth scientific debate. I’m always happy to meet people to discuss the details of anything scientific but I might not be able to respond on X.
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CoSchools retweeted
B) @SAMHEProject is also working directly with teachers, school leaders, and pupils to support their understanding of their school’s air quality and to guide their efforts to improve it.
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CoSchools retweeted
A) @SAMHEProject is creating a large dataset indicating the state of air quality in UK schools and its effects - using that to report scientific findings (some of which are unpopular on X!) and to work with government and unions to improve guidance and future provision, and ...
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CoSchools retweeted
4) Finally, I want to emphasise that @SAMHEProject is only about trying to help improve air quality in schools - @SAMHEProject is working with schools to help improve air quality in two main ways: ...
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CoSchools retweeted
Without knowing occupancy and window opening some suggestions made (e.g removing 11:30-14:00) would result in lowering the daily mean CO2 reported - certainly the much talked about 'lunch hour' makes a non-significant difference on the vast majority of days shown.
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CoSchools retweeted
Before everyone gets going about our favourite 'lunch hour', zoom into the attached figure (from doi.org/10.1016/j.jobe.2022.…) notionally similar classrooms and occupancy - so ventilation behaviour has a leading order effect ...
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CoSchools retweeted
3) The vast majority of data we analyse is from when classrooms are occupied: we know schools are operational on the days analysed and monitors are placed in teaching spaces; these tend to occupied most of the day (schools don't have many empty classrooms kicking around!) And ...
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CoSchools retweeted
2) Article goes to effort to infer pp vent rates, concluding the below - these rates account for inoccupancy and are far more meaningful than CO2 thresholds. Fact tha t these rates are low & adherence to the guidance is high = best evidence for the need for change.
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CoSchools retweeted
Finding most the data shows adherence to guidance can still mean that many do not, see our highlight: "Most classrooms conform to CO2 guidelines but some regularly exceed, often significantly so" - so we can all agree that there is lots of improvement still required.
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CoSchools retweeted
1) It's a research article, not an opinion piece - only reporting facts allowed, not passing personal opinions on the suitability of guidance. I made it clear on X that the BB101 thresholds are not what we should be aiming for but, for now, they are the guidance for UK schools...
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CoSchools retweeted
we also use the analysis published here doi.org/10.1016/j.buildenv.2… to demonstrate that the associated per-person ventilation rates are low (relative to almost all available guidance). Thoughts please @CathNoakes @CorsIAQ

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Replying to @CorsIAQ
My own takeaway is that the @SAMHEProject dataset has already proved it's value just based on one term of looking at just CO2, there is so much more evidence that will follow from this data - thanks to @SarahWest_SEI and all of the amazing @SAMHEProject team...
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Replying to @CorsIAQ
Loads more findings within - my fav is that CO2 levels are statistically differ within primary and secondary schools but translating to per-person ventilation shows there is no difference as the latter appropriately accounts for differing generation rates of different age groups
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CoSchools retweeted
Very glad to see this paper out: doi.org/10.1016/j.dibe.2024.…, reporting evidence based on the first term of CO2 data from the @SAMHEProject - headline is that adherence to UK guidance for schools is relatively high most of the time; however, ...

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CoSchools retweeted
Proud to be watching Alice and Sam present @SAMHEProject to a packed room @ERGImperial - very well received, well done them!!!
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CoSchools retweeted
📢The support we can offer #SAMHE schools will reduce from 31 July, when our current funding ends. But don’t worry, you can keep using your #AirQuality monitor and the Web App for many years to come! If you haven't signed up yet, you have till 31 May! 👉samhe.org.uk/register/school
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CoSchools retweeted
🥳We're delighted to have published an article explaining how and why #SAMHE was #codesign-ed with teachers and pupils! HUGE thanks to our Co-design and Pioneer schools - we couldn't have done it without you #CitizenScience #CitSci #scied #AQ cc @EuCitSci theoryandpractice.citizensci…
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CoSchools retweeted
Hear teachers explain why they love #SAMHE! Thank you Andy Brittain, Alex Burns, Gemma Hortop, Steven West and their schools for wholeheartedly embracing SAMHE project and their willingness to share their stories and enthusiasm! youtu.be/8fhvbjLUMtg?si=LzHX… #classroomair #edutwitter
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CoSchools retweeted
Our heartfelt thanks go out all those who took part in #WorldVentil8Day . Your contribution made a difference and supported our goal to #BreatheBetterLiveBetter. Our campaign continues - To ensure you are kept up to date subscribe at worldventil8day.com/get-invo….
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