@Nantanreikan@GosiaGasperoPhD It would be interesting to see plots for samples grouped for each day of the week. See if it’s weekend gatherings causing weekly spikes.
@IPEdmonton I would guess the levels would be 100-200 ppm higher right down in the lower bowl. I wouldn’t be comfortable seated there, but maybe I’ll send the aranet with my friends next.
@jkparker@IPEdmonton @perrin_jan Might let ChatGPT have a try at how long it takes 18,000 humans to raise the co2 level in an arena each minute. Maybe 7 minute air exchanges just aren’t enough for large events.