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Hourly forecast
East 21st Street, Signal Hill air quality index (AQI⁺) forecast
Daily forecast
East 21st Street, Signal Hill air quality index (AQI⁺) forecast
| Today | 53 |  | 22° 14° |  16 km/h |  72% |
| Tue | 61 | | 24° 13° | 14 km/h | 72% |
| Wed | 65 | | 25° 14° | 14 km/h | 69% |
Air pollutants
What is the current air quality near East 21st Street?
PM2.5 concentration is currently 1.9 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 |
Real-time East 21st Street, Signal Hill air pollution map
Pollen
What is the pollen count in East 21st Street today?
Index
Moderate
 Tree Low | 25% |
 Grass Moderate | 50% |
 Weed Moderate | 50% |
Source:
wetter.comPollen
What is the pollen count in East 21st Street today?
Index
Moderate
Tree Low | 25% |
Grass Moderate | 50% |
Weed Moderate | 50% |
Source:
wetter.comHistoric air quality near East 21st Street
History
Historic air quality graph for East 21st Street
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Most polluted locations near East 21st Street, Signal Hill
Worldwide AQI⁺ ranking
Station ranking
Real-time East 21st Street AQI⁺ station ranking
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