AddAir quality in Castro
Air quality index (AQI⁺) and PM2.5 air pollution in Castro • 16 Followers • 03:00, Sep 23 Local time
23*
US AQI⁺Good
Main pollutant:
PM2.5
4.2 µg/m³
11°
13 km/h
97 %
Hourly forecast
Castro air quality index (AQI⁺) forecast
Daily forecast
Castro air quality index (AQI⁺) forecast
| Today | 41 |  | 14° 10° |  19 km/h | 91% |
| Thu | 61 | | 19° 10° | 15 km/h | 87% |
| Fri | 47 |  | 25° 12° | 11 km/h | 74% |
Air pollutants
What is the current air quality in Castro?
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 Castro
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.
Health recommendations
Enjoy outdoor activities |
Open your windows to bring clean, fresh air indoors Get a monitor |
Protect yourself from air pollution in Castro
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 Castro
Worldwide AQI⁺ ranking
Historic air quality near Castro
History
Historic air quality graph for Castro
Historic air quality near Castro
History
Historic air quality graph for Castro
Most polluted locations near Castro
Worldwide AQI⁺ ranking
