AddAir quality in Walden
Air quality index (AQI⁺) and PM2.5 air pollution in Walden • 943 Followers • 04:00, Apr 19 Local time
30
US AQI⁺Good
Main pollutant:
PM2.5
5.5 µg/m³
-4°
8 km/h
69 %
Hourly forecast
Walden air quality index (AQI⁺) forecast
Daily forecast
Walden air quality index (AQI⁺) forecast
| Today | 20 |  | 13° -5° |  23 km/h | 26% |
| Mon | 15 | | 17° -2° | 22 km/h | 26% |
| Tue | 20 |  | 19° 0° | 27 km/h | 35% |
Air pollutants
What is the current air quality in Walden?
PM2.5 concentration is currently 1.1 times the World Health Organization annual PM2.5 guideline value.
Health recommendations
 Enjoy outdoor activities |
 Open your windows to bring clean, fresh air indoors Get a monitor |
Protect yourself from air pollution in Walden
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.
Pollen
What is the pollen count in Walden today?
Index
Low
 Tree Low | 25% |
 Grass None | 0% |
 Weed None | 0% |
Source:
wetter.comHealth recommendations
Enjoy outdoor activities |
Open your windows to bring clean, fresh air indoors Get a monitor |
Pollen
What is the pollen count in Walden today?
Index
Low
Tree Low | 25% |
Grass None | 0% |
Weed None | 0% |
Source:
wetter.comProtect yourself from air pollution in Walden
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 Walden
Worldwide AQI⁺ ranking
Station ranking
Real-time AQI⁺ station ranking for stations in Walden
Historic air quality near Walden
History
Historic air quality graph for Walden
Historic air quality near Walden
History
Historic air quality graph for Walden
Most polluted locations near Walden
Worldwide AQI⁺ rankingStation ranking
Real-time AQI⁺ station ranking for stations in Walden
Measure your own air quality
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