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AIR QUALITY DATA SOURCE
Find out more about contributors and data sourcesIndex | High | ||
Tree pollen | Low | ||
Grass pollen | High | ||
Weed pollen | None |
Weather | Few clouds |
Temperature | 50°F |
Humidity | 19% |
Wind | 4.7 mp/h |
Pressure | 29.9 Hg |
# | city | US AQI |
---|---|---|
1 | Corpus Christi, Texas | 75 |
2 | San Antonio, Texas | 75 |
3 | Lancaster, Pennsylvania | 71 |
4 | New Braunfels, Texas | 70 |
5 | Buffalo, New York | 68 |
6 | Allentown, Pennsylvania | 67 |
7 | Braddock, Pennsylvania | 66 |
8 | West Mifflin, Pennsylvania | 66 |
9 | Casa Grande, Arizona | 65 |
10 | Camden, New Jersey | 63 |
(local time)
SEE WORLD AQI RANKINGUS AQI
18*
live AQI index
Good
Air pollution level | Air quality index | Main pollutant |
---|---|---|
Good | 18* US AQI | PM2.5 |
Pollutants | Concentration | |
---|---|---|
PM2.5 | 4.4*µg/m³ |
PM2.5 concentration in Helena air currently meets the WHO annual air quality guideline value
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Day | Pollution level | Weather | Temperature | Wind |
---|---|---|---|---|
Today | Good 18 AQI US | 78.8° 50° | 11.2 mp/h | |
Tuesday, Apr 30 | Good 39 AQI US | 91.4° 60.8° | 22.4 mp/h | |
Wednesday, May 1 | Good 41 AQI US | 100% | 86° 59° | 26.8 mp/h |
Thursday, May 2 | Good 39 AQI US | 100% | 71.6° 60.8° | 29.1 mp/h |
Friday, May 3 | Good 34 AQI US | 75.2° 51.8° | 13.4 mp/h | |
Saturday, May 4 | Good 6 AQI US | 60% | 73.4° 51.8° | 15.7 mp/h |
Sunday, May 5 | Good 10 AQI US | 77° 55.4° | 8.9 mp/h |
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