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dr jamesbicycle /
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2024-03-16 16:07:05

dr jamesbicycle on Nostr: 1/2 Saskatoon airport air quality is very good. 497 ppm CO² means good air exchange. ...

1/2
Saskatoon airport air quality is very good.
497 ppm CO² means good air exchange.

#Covid #covid19 #airquality #yxe

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