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AIR QUALITY DATA CONTRIBUTORS
Find out more about contributors and data sourcesIndex | Low | ||
Tree pollen | Low | ||
Grass pollen | Low | ||
Weed pollen | None |
Weather | Scattered clouds |
Temperature | 60.8°F |
Humidity | 73% |
Wind | 3.7 mp/h |
Pressure | 30 Hg |
# | city | US AQI |
---|---|---|
1 | San Bernardino, California | 88 |
2 | Fontana, California | 82 |
3 | Corpus Christi, Texas | 79 |
4 | Redlands, California | 77 |
5 | Riverside, California | 76 |
6 | San Fernando, California | 74 |
7 | Santa Clarita, California | 73 |
8 | Claremont, California | 72 |
9 | Diamond Bar, California | 71 |
10 | Beverly Hills, California | 70 |
(local time)
SEE WORLD AQI RANKING# | station | US AQI |
---|---|---|
1 | Lower Sandstone | 59 |
2 | Antonio Court | 50 |
3 | 14 Arastradero | 43 |
4 | LSAC Building 950 | 40 |
5 | 4139 Alpine Road | 39 |
6 | Millennium farm | 39 |
7 | 10 Alhambra Court | 38 |
8 | Granada Court | 37 |
9 | Ladera - Lucero and Mimosa | 37 |
10 | Alhambra Court | 36 |
(local time)
SEE WORLD AQI RANKINGUS AQI
35
live AQI index
Good
Air pollution level | Air quality index | Main pollutant |
---|---|---|
Good | 35 US AQI | PM2.5 |
Pollutants | Concentration | |
---|---|---|
PM2.5 | 8.4µg/m³ |
PM2.5
x1.7
PM2.5 concentration in Portola Valley is currently 1.7 times the WHO annual air quality guideline value
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Day | Pollution level | Weather | Temperature | Wind |
---|---|---|---|---|
Tuesday, Apr 16 | Good 15 AQI US | 77° 51.8° | 6.7 mp/h | |
Wednesday, Apr 17 | Good 20 AQI US | 71.6° 50° | 6.7 mp/h | |
Thursday, Apr 18 | Good 21 AQI US | 62.6° 48.2° | 6.7 mp/h | |
Today | Good 35 AQI US | 62.6° 48.2° | 6.7 mp/h | |
Saturday, Apr 20 | Good 22 AQI US | 64.4° 48.2° | 8.9 mp/h | |
Sunday, Apr 21 | Good 19 AQI US | 68° 50° | 6.7 mp/h | |
Monday, Apr 22 | Good 24 AQI US | 64.4° 50° | 6.7 mp/h | |
Tuesday, Apr 23 | Good 16 AQI US | 57.2° 48.2° | 8.9 mp/h | |
Wednesday, Apr 24 | Good 14 AQI US | 57.2° 48.2° | 8.9 mp/h | |
Thursday, Apr 25 | Good 11 AQI US | 57.2° 48.2° | 6.7 mp/h |
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30Contributors
30 Anonymous Contributors
30 stations
1 Data source