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AIR QUALITY DATA CONTRIBUTORS
Find out more about contributors and data sourcesIndex | Moderate | ||
Tree pollen | Moderate | ||
Grass pollen | Low | ||
Weed pollen | None |
Weather | Few clouds |
Temperature | 60.8°F |
Humidity | 81% |
Wind | 1 mp/h |
Pressure | 29.9 Hg |
# | city | US AQI |
---|---|---|
1 | Pahrump, Nevada | 71 |
2 | Bakersfield, California | 68 |
3 | Three Rivers, California | 66 |
4 | Muskegon, Michigan | 65 |
5 | Taos, New Mexico | 65 |
6 | Mecca, California | 64 |
7 | Hollywood, California | 63 |
8 | Michigan City, Indiana | 61 |
9 | San Fernando, California | 61 |
10 | Banning, California | 60 |
(local time)
SEE WORLD AQI RANKING# | station | US AQI |
---|---|---|
1 | 4139 Alpine Road | 65 |
2 | Lower Sandstone | 56 |
3 | 14 Arastradero | 37 |
4 | Pescadero | 37 |
5 | 10 Alhambra Court | 36 |
6 | LSAC Building 950 | 36 |
7 | Ladera - Lucero and Mimosa | 35 |
8 | San Francisquito Creek Road | 35 |
9 | Alpine Road | 34 |
10 | Experimental Facilities Dept Shops EFD | 34 |
(local time)
SEE WORLD AQI RANKINGUS AQI
33
live AQI index
Good
Air pollution level | Air quality index | Main pollutant |
---|---|---|
Good | 33 US AQI | PM2.5 |
Pollutants | Concentration | |
---|---|---|
PM2.5 | 6µg/m³ |
PM2.5
x1.2
PM2.5 concentration in Portola Valley is currently 1.2 times the WHO annual air quality guideline value
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Day | Pollution level | Weather | Temperature | Wind |
---|---|---|---|---|
Tuesday, May 28 | Good 27 AQI US | 77° 48.2° | 11.2 mp/h | |
Wednesday, May 29 | Good 28 AQI US | 82.4° 50° | 8.9 mp/h | |
Thursday, May 30 | Good 31 AQI US | 78.8° 48.2° | 6.7 mp/h | |
Today | Good 33 AQI US | 60.8° 48.2° | 11.2 mp/h | |
Saturday, Jun 1 | Good 36 AQI US | 64.4° 51.8° | 8.9 mp/h | |
Sunday, Jun 2 | Good 20 AQI US | 59° 50° | 8.9 mp/h | |
Monday, Jun 3 | Good 34 AQI US | 73.4° 48.2° | 8.9 mp/h | |
Tuesday, Jun 4 | Moderate 66 AQI US | 77° 53.6° | 4.5 mp/h | |
Wednesday, Jun 5 | Good 40 AQI US | 66.2° 50° | 6.7 mp/h | |
Thursday, Jun 6 | Good 21 AQI US | 66.2° 50° | 8.9 mp/h |
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29Contributors
29 Anonymous Contributors
29 stations
1 Data source