Hi all,

I'm attaching the data I gathered from Ed's CO2 monitor yesterday at both churches (15 minutes of 4-person ringing at each, raise and lower included).

The y-axis should be PPM, and the X-axis is seconds.

As a vaccinated band, we were ringing on the front 4 at both towers. The sensor was placed on boxes near the center of the ring at roughly waist height. Windows were open.

At Advent, my laptop went to sleep after a few minutes, and then resumed plotting when I restarted it after our 15 minutes of ringing was done. This explains the jump in the plot, but unfortunately that missing interval is indeed missing.

You might notice levels at ON going up and down, but it's all within a very tight range. My takeaways here, fwiw, are that ventilation at ON is quite good (assuming some cross breeze), and Advent less so.

John and I will be reaching out about sign-ups for resuming practice and more-standard service ringing to begin next weekend (probably... final clearance from churches still tbc). The tenor at Old North is still sans-staple, but the fix is moving forward again.

Thanks all for filling out the survey earlier this month. Looking forward to ringing with you all again soon!

Best,

Austin