Provider of solar-powered DOOH kiosks Soofa adds an air quality widget to its signs in Boston (City of Boston)

The widget displays real-time air quality information, including the current Air Quality Index (AQI), as well as the forecast for days ahead. You will be able to see the AQI for PM 2.5, PM 10, and Ozone. Particulate matter (PM) contains microscopic solids or liquid droplets that can be inhaled and cause serious health problems (EPA). […]