AddAir quality in Old Greenwich
Air quality index (AQI⁺) and PM2.5 air pollution in Old Greenwich • 908 Followers • 01:00, May 20
27
US AQI⁺Good
Main pollutant:
O₃
66 µg/m³
22°
12 km/h
81 %
Hourly forecast
Old Greenwich air quality index (AQI⁺) forecast
Daily forecast
Old Greenwich air quality index (AQI⁺) forecast
| Today | 51 |  | 30° 20° |  23 km/h | 54% |
| Thu | 50 |  | 16° 11° | 18 km/h | 59% |
| Fri | 26 |  | 17° 9° | 15 km/h | 53% |
Air pollutants
What is the current air quality in Old Greenwich?
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 Old Greenwich
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 Old Greenwich today?
Index
High
 Tree High | 75% |
 Grass Low | 25% |
 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 Old Greenwich today?
Index
High
Tree High | 75% |
Grass Low | 25% |
Weed None | 0% |
Source:
wetter.comProtect yourself from air pollution in Old Greenwich
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 Old Greenwich
Worldwide AQI⁺ ranking
Station ranking
Real-time AQI⁺ station ranking for stations in Old Greenwich
City ranking
Real-time USA AQI⁺ city ranking
Historic air quality near Old Greenwich
History
Historic air quality graph for Old Greenwich
Historic air quality near Old Greenwich
History
Historic air quality graph for Old Greenwich
Most polluted locations near Old Greenwich
Worldwide AQI⁺ rankingStation ranking
Real-time AQI⁺ station ranking for stations in Old Greenwich
City ranking
