AddAir quality in Waltham
Air quality index (AQI⁺) and PM2.5 air pollution in Waltham • 1 Follower • 22:00, May 21 Local time
18
US AQI⁺Good
Main pollutant:
PM2.5
3.3 µg/m³
27°
31 km/h
78 %
Hourly forecast
Waltham air quality index (AQI⁺) forecast
Daily forecast
Waltham air quality index (AQI⁺) forecast
| Today | 12 |  | 28° 27° |  29 km/h | 77% |
| Fri | 30 | | 28° 27° | 31 km/h | 79% |
| Sat | 26 |  | 28° 27° | 28 km/h | 77% |
Air pollutants
What is the current air quality in Waltham?
PM2.5 concentration currently meets the WHO annual PM2.5 guideline.
Health recommendations
 Enjoy outdoor activities |
 Open your windows to bring clean, fresh air indoors Get a monitor |
Protect yourself from air pollution in Waltham
Monitor the air you breathe
Get accurate AirVisual air quality readings and real-time insights for cleaner air. Monitors that reveal pollution sources, highlight when air purifier use is needed.
Medical grade air purifiers
Trusted worldwide, the HealthPro Series uses HyperHEPA technology. Filters ultrafine particles other air purifiers miss, delivering medical-grade protection.
Powerful, stylish air purifiers
Compact and powerful, the Atem Series combines Swiss engineering with high-performance air purification, filtering ultrafine particles with HyperHEPA technology.
Health recommendations
Enjoy outdoor activities |
Open your windows to bring clean, fresh air indoors Get a monitor |
Protect yourself from air pollution in Waltham
Monitor the air you breathe
Get accurate AirVisual air quality readings and real-time insights for cleaner air. Monitors that reveal pollution sources, highlight when air purifier use is needed.
Medical grade air purifiers
Trusted worldwide, the HealthPro Series uses HyperHEPA technology. Filters ultrafine particles other air purifiers miss, delivering medical-grade protection.
Powerful, stylish air purifiers
Compact and powerful, the Atem Series combines Swiss engineering with high-performance air purification, filtering ultrafine particles with HyperHEPA technology.
Most polluted locations near Waltham
Worldwide AQI⁺ ranking
Historic air quality near Waltham
History
Historic air quality graph for Waltham
Historic air quality near Waltham
History
Historic air quality graph for Waltham
Most polluted locations near Waltham
Worldwide AQI⁺ ranking
Measure your own air quality
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