Department of Energy and EnvironmentThis dataset is made up of hourly measurements of PM2.5 and PM10, and meteorological measurements, collected through DOEE's Purple Air network in the District of Columbia. The meteorological data collected are the sensor's internal temperature and relative humidity readings. Measurements are collected to gain a better understanding of hyper-local air quality data. This data is collected through 24-hour continuous measurements.ArcGIS DynamicMapLayerhttps://hub.arcgis.com/datasets/80daabebf3a54050ae99c022614e8b20_0engOpen Data DCPublicAir Quality Purple Air Sensors [District of Columbia--Washington]Web servicesDistrict of Columbia--WashingtonDistrict of ColumbiaLast Modified: 2026-01-06