Ryan Murphy
ryanmurphy.blue
Ryan Murphy
@ryanmurphy.blue
Teacher. Parent. Fan of clean air, automating school information & theatre production, Oxford commas, and coffee. Occasional writer. (he/him)
Reposted by Ryan Murphy
CO2 on Watch & Lockscreen app gives:

✅ Current and past 3hrs readings of you Aranet on the Apple Watch

✅ Current and past 3hrs readings reading of you Aranet on your iPhone

✅ Custom alerts when levels spike
June 21, 2025 at 4:38 PM
My (recently-updated) presentation, "Crash Course on School Air Quality in NB" includes some background information on indoor air quality and the testing program in New Brunswick schools. If you are interested, you can view that document here (PDF on OneDrive): buff.ly/IBtCHs1
May 12, 2025 at 7:15 PM
These charts and recommendations have been shared with all MLAs, as well as the Superintendents, Directors of Schools, and Facility Managers for the 4 Anglophone School Districts. I also shared the collated data.

Please follow-up with those who influence purchasing & policy.

buff.ly/hrzWjyu
May 12, 2025 at 7:15 PM
Other schools with significant increases this past year, compared to the year they tested out of the program, include:

Chipman Elementary School (+934 PPM)
Grand Bay Primary School (+821 PPM)
Loch Lomond School (+1077 PPM)
Upper Miramichi Elementary School (+740 PPM)
May 12, 2025 at 7:15 PM
Princess Elizabeth School tested out in 2021 – 2022 with an average score of 371.4 PPM and a peak score of 392 PPM. This wasn't caught, so no tests were completed in 2022 – 2023.

When the school was tested again, the peak score was 1902 PPM – even higher than their initial testing of 1830 PPM.
May 12, 2025 at 7:15 PM
At least 19 schools that had previously met the 1500 PPM guideline (and therefore would not have received further testing) showed higher levels when the program was expanded back to its original scope.

That includes two schools with reported results better than outdoor air.
May 12, 2025 at 7:15 PM
Some noteworthy results from the 2023 - 2024 data (buff.ly/2fEeTTu ):

Thirty-seven schools had peak carbon dioxide values above the 1500 PPM guideline. That's more than half.

The highest peak value was recorded at Petitcodiac Regional School - a building with mechanical ventilation.
May 12, 2025 at 7:15 PM
For the 2023 - 2024 school year, the testing program was expanded (maybe "un-contracted" is more accurate) to include all schools originally part of the School Ventilation Program - including those that had previously reported one day of good testing & schools that had ventilation systems installed.
May 12, 2025 at 7:15 PM
Recommendation 3:

The Province must increase testing to include all rooms.

Data includes 37 schools with peaks above 1500 PPM - including 8 with average values below 1000 PPM. Their peaks averaged 1975 PPM.

What if the outliers were not tested? How many other schools have similar untested rooms?
May 12, 2025 at 7:15 PM
Recommendation 2:

The Province must increase the frequency of testing.

Twelve of 29 schools that had previously tested out of the program (a single day of meeting 1500 PPM) now produced results above 1500 PPM.

Boston Public School's IAQ dashboard shows real-time & historical data for 4000+ rooms.
May 12, 2025 at 7:15 PM
Recommendation 1:

GNB must expand the Air Quality Testing program to include all schools – including those with mechanical ventilation.

Petitcodiac Regional School reported the worst peak value. It has a mechanical ventilation system - and it turns on at 4:00 AM, hours before most other schools.
May 12, 2025 at 7:15 PM
Based on my analysis, I provided three recommendations on the scope of the Province's testing.

Results for each school are recorded on 1 day each year & in approximately 10% of each school's rooms. Only schools without ventilation systems are tested & only until they score below 1500 PPM.
May 12, 2025 at 7:15 PM
From the developer, @noideawhatimcoding.bsky.social:
Checking CO₂ with @aranethome.bsky.social always feel a bit clunky. Not quick or discreet enough.

So I built an app to see Aranet CO2 values, instantly on:
⌚️ Apple Watch, with 2 complications
📱 iPhone lockscreen, with 2 widgets

Finally, CO2 monitoring that’s actually seamless and discreet.

1/ 👇
March 3, 2025 at 3:26 PM
It seems to be, yes.
February 28, 2025 at 10:31 PM
Samples.

(No affiliation. Also, @aranethome.bsky.social wouldn’t do this, so someone wonderful did it for us.)
February 28, 2025 at 10:04 PM