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AIR QUALITY DATA CONTRIBUTORS
Find out more about contributors and data sourcesIndex | Very high | ||
Tree pollen | Very high | ||
Grass pollen | Moderate | ||
Weed pollen | None |
Weather | Scattered clouds |
Temperature | 64.4°F |
Humidity | 37% |
Wind | 10.4 mp/h |
Pressure | 30.1 Hg |
# | city | US AQI |
---|---|---|
1 | Glendora, California | 79 |
2 | Hollywood, California | 76 |
3 | San Fernando, California | 74 |
4 | Pasadena, California | 73 |
5 | La Verne, California | 72 |
6 | Sierra Madre, California | 71 |
7 | Claremont, California | 70 |
8 | La Canada Flintridge, California | 70 |
9 | La Crescenta-Montrose, California | 70 |
10 | Glendale, California | 69 |
(local time)
SEE WORLD AQI RANKING# | station | US AQI |
---|---|---|
1 | Williamstown Station | 29 |
(local time)
SEE WORLD AQI RANKINGUS AQI
29
live AQI index
Good
Air pollution level | Air quality index | Main pollutant |
---|---|---|
Good | 29 US AQI | PM2.5 |
Pollutants | Concentration | |
---|---|---|
PM2.5 | 5.4µg/m³ |
PM2.5
x1.1
PM2.5 concentration in Williamstown is currently 1.1 times the WHO annual air quality guideline value
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Day | Pollution level | Weather | Temperature | Wind |
---|---|---|---|---|
Tuesday, May 28 | Good 14 AQI US | 69.8° 51.8° | 8.9 mp/h | |
Wednesday, May 29 | Good 16 AQI US | 66.2° 50° | 8.9 mp/h | |
Thursday, May 30 | Good 22 AQI US | 69.8° 44.6° | 11.2 mp/h | |
Today | Good 29 AQI US | 75.2° 48.2° | 6.7 mp/h | |
Saturday, Jun 1 | Good 32 AQI US | 77° 53.6° | 6.7 mp/h | |
Sunday, Jun 2 | Moderate 54 AQI US | 82.4° 55.4° | 2.2 mp/h | |
Monday, Jun 3 | Moderate 66 AQI US | 30% | 77° 57.2° | 2.2 mp/h |
Tuesday, Jun 4 | Moderate 71 AQI US | 30% | 75.2° 55.4° | 6.7 mp/h |
Wednesday, Jun 5 | Good 46 AQI US | 100% | 62.6° 51.8° | 4.5 mp/h |
Thursday, Jun 6 | Good 22 AQI US | 100% | 64.4° 48.2° | 11.2 mp/h |
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Anonymous Contributor
1 station
1 Data source