Air Quality Index
Today:
Good
Help keep air quality good by biking to work and enjoying outdoor activities.
AQI:
42
Dominant Pollutant:
PM2.5
Tiny particles called PM2.5 irritate the eyes, nose, and respiratory system. Long-term exposure aggravates heart and lung disease.
AQI Source: Contains Copernicus Atmosphere Monitoring Service information 2026 and/or modified Copernicus Atmosphere Monitoring Service information 2026. May also contain SILAM information and/or modified SILAM information from the Finnish Meteorological Institute, made available via https://en.ilmatieteenlaitos.fi/open-data-licence
Purple Air
Keep you and your family safe
Monitor your outdoor air with an air
pollution monitor from PurpleAir.
Buy Your Sensor NowU.S. Counties Health Map & Air Pollution Monitors
Good
Moderate
Unhealthy if Sensitive
Unhealthy
Very Unhealthy
Hazardous
0-50
51-100
101-150
151-200
201-300
301-500
Fine Particulate Matter PM2.5*
Is an air pollutant that is a concern for people's health when levels are high. PM2.5 are tiny particles in the air which reduce visibility and cause the air to appear hazy when levels are elevated.
Learn more about air pollution and your healthNearby Pollution Monitors
ID
Location
Time
Type
Level (µg/m3)
