AddAir quality in Leyden
Air quality index (AQI⁺) and PM2.5 air pollution in Leyden • 1 Follower • 22:00, Aug 16
25
US AQI⁺Good
Main pollutant:
PM2.5
4.5 µg/m³
20°
13 km/h
94 %
Hourly forecast
Leyden air quality index (AQI⁺) forecast
Daily forecast
Leyden air quality index (AQI⁺) forecast
| Today | 45 |  | 20° 17° |  14 km/h | 97% |
| Mon | 51 |  | 24° 17° | 8 km/h | 81% |
| Tue | 61 | | 28° 14° | 14 km/h | 56% |
Air pollutants
What is the current air quality in Leyden?
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 Leyden
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 Leyden today?
Index
None
 Tree None | 0% |
 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 Leyden today?
Index
None
Tree None | 0% |
Grass None | 0% |
Weed None | 0% |
Source:
wetter.comProtect yourself from air pollution in Leyden
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 Leyden
Worldwide AQI⁺ ranking
Station ranking
Real-time AQI⁺ station ranking for stations in Leyden
City ranking
Real-time USA AQI⁺ city ranking
Historic air quality near Leyden
History
Historic air quality graph for Leyden
Historic air quality near Leyden
History
Historic air quality graph for Leyden
Most polluted locations near Leyden
Worldwide AQI⁺ rankingStation ranking
Real-time AQI⁺ station ranking for stations in Leyden
City ranking
Real-time USA AQI⁺ city ranking
Measure your own air quality
Get a monitor and contribute air quality data in your city.
