AddAir quality in St. Helens
Air quality index (AQI⁺) and PM2.5 air pollution in St. Helens • 930 Followers • 11:00, May 19 Local time
42*
US AQI⁺Good
Main pollutant:
PM2.5
7.5 µg/m³
17°
8 km/h
71 %
Hourly forecast
St. Helens air quality index (AQI⁺) forecast
Daily forecast
St. Helens air quality index (AQI⁺) forecast
| Today | 41 | | 17° 10° |  15 km/h | 74% |
| Wed | 38 |  | 19° 8° | 18 km/h | 69% |
| Thu | 56 |  | 24° 11° | 18 km/h | 61% |
Air pollutants
What is the current air quality in St. Helens?
PM2.5 concentration is currently 1.5 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 St. Helens
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 St. Helens today?
Index
High
 Tree Low | 25% |
 Grass High | 75% |
 Weed Moderate | 50% |
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 St. Helens today?
Index
High
Tree Low | 25% |
Grass High | 75% |
Weed Moderate | 50% |
Source:
wetter.comProtect yourself from air pollution in St. Helens
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 St. Helens
Worldwide AQI⁺ ranking
City ranking
Real-time USA AQI⁺ city ranking
Historic air quality near St. Helens
History
Historic air quality graph for St. Helens
Historic air quality near St. Helens
History
Historic air quality graph for St. Helens
Most polluted locations near St. Helens
Worldwide AQI⁺ rankingCity ranking
