Air quality in Waltham
Air quality index (AQI⁺) and PM2.5 air pollution in Waltham • 1 Follower • 11:00, Nov 07 Local time
62*
US AQI⁺Moderate
Main pollutant:
PM2.5
14.8 µg/m³
29°
21 km/h
75 %
Hourly forecast
Waltham air quality index (AQI⁺) forecast
Daily forecast
Waltham air quality index (AQI⁺) forecast
| Today | 62 | 29° 28° | 23 km/h | 77% | |
| Sun | 20 | 29° 28° | 23 km/h | 77% | |
| Mon | 12 | 29° 28° | 24 km/h | 79% |
Air pollutants
What is the current air quality in Waltham?
PM2.5 concentration is currently 3 times the World Health Organization annual PM2.5 guideline value.
Health recommendations
Sensitive groups should reduce outdoor exercise |
Close your windows to avoid dirty outdoor air Get a monitor |
Sensitive groups should wear a mask outdoors Get a mask |
Sensitive groups should run an air purifier Get an air purifier |
Protect yourself from air pollution in Waltham
Health recommendations
Sensitive groups should reduce outdoor exercise |
Close your windows to avoid dirty outdoor air Get a monitor |
Sensitive groups should wear a mask outdoors Get a mask |
Sensitive groups should run an air purifier Get an air purifier |
Protect yourself from air pollution in Waltham
Most polluted locations near Waltham
Worldwide AQI⁺ rankingHistoric air quality near Waltham
History
Historic air quality graph for Waltham
Historic air quality near Waltham
History
Historic air quality graph for Waltham

















