AddAir quality in Leyden
Air quality index (AQI⁺) and PM2.5 air pollution in Leyden • 15:00, Jun 18
56
US AQI⁺Moderate
Main pollutant:
PM2.5
11.9 µg/m³
23°
27 km/h
92 %
Hourly forecast
Leyden air quality index (AQI⁺) forecast
Daily forecast
Leyden air quality index (AQI⁺) forecast
| Today | 56 |  90% | 26° 15° |  33 km/h | 90% |
| Fri | 20 |  | 22° 14° | 23 km/h | 64% |
| Sat | 22 | | 21° 14° | 26 km/h | 67% |
Air pollutants
What is the current air quality in Leyden?
PM2.5 concentration is currently 2.4 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 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
High
 Tree Low | 25% |
 Grass High | 75% |
 Weed Moderate | 50% |
Source:
wetter.comHealth 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 |
Pollen
What is the pollen count in Leyden today?
Index
High
Tree Low | 25% |
Grass High | 75% |
Weed Moderate | 50% |
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
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
Measure your own air quality
Get a monitor and contribute air quality data in your city.
