[North America] Raven Clean Air Map — provides information about concentrations of carbon dioxide at various locations.
[North America] AirNow Fire and Smoke Map — provides information about concentrations of fine particulate matter (PM2.5) from wildfire smoke in North America.
[Canada] Canada’s Wildfire Smoke Prediction System (FireWork) — FireWork is an air quality prediction system that indicates how smoke from wildfires is expected to move across North America over the next 72 hours.
[Boston] Boston Public Schools Indoor Air Quality — Boston Public Schools has installed indoor air quality sensors in all classrooms in schools. The sensors report information in real time on key measures of air quality, including concentrations of carbon dioxide, carbon monoxide, and fine particulate matter (PM2.5 and PM10).