
Piera Systems 🇨🇦
2.1K posts

Piera Systems 🇨🇦
@piera_systems
We are dedicated to reducing the health impact of air pollution globally by providing accurate, real-time data on particulate matter.












News Release: Toronto Public Health is reporting exposure to a case of measles in a person who visited the city. The public could have been exposed to measles on Monday, April 21, from 1 to 7 p.m. at Ripley’s Aquarium (288 Bremner Blvd.) toronto.ca/news/toronto-p…




@EmJayNabuurs @airspothealth NL mandated CO2 monitors in classrooms in 2022, but did nothing more than that. Those colour coded CO2 charts are nothing more than window dressing. No one is paying any attention to CO2. The monitors are often not plugged in. If they are, no one checks or even understands them





There was a peak era of hockey commentary and crowd audio mixing and we took it for granted 💔



Out of 128 inpatient #covid cases in hospital in Wales on 13th April 2025 - 104 of them caught covid IN THE HOSPITAL Why do hospitals not use HEPA filters to clean viruses from the air? SIGN this petition & they might have to 🔽 petition.parliament.uk/petitions/7003… @1goodtern @_CatintheHat









