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AIR QUALITY DATA CONTRIBUTORS
Find out more about contributors and data sourcesIndex | Very high | ||
Tree pollen | Very high | ||
Grass pollen | High | ||
Weed pollen | None |
Weather | Clear sky |
Temperature | 42.8°F |
Humidity | 88% |
Wind | 1.5 mp/h |
Pressure | 28.6 Hg |
# | city | US AQI |
---|---|---|
1 | Palm Desert, California | 95 |
2 | Marana, Arizona | 90 |
3 | Mecca, California | 90 |
4 | Corpus Christi, Texas | 82 |
5 | New Braunfels, Texas | 81 |
6 | San Antonio, Texas | 78 |
7 | Maricopa, Arizona | 77 |
8 | Boerne, Texas | 74 |
9 | Cleveland, Ohio | 73 |
10 | Redlands, California | 72 |
(local time)
SEE WORLD AQI RANKING# | station | US AQI |
---|---|---|
1 | Spring Mountain Road | 30 |
2 | North Fork Crystal Springs Road | 25 |
3 | Stockton Street | 24 |
4 | Via Monte | 24 |
5 | Inglewood Avenue | 23 |
6 | Chaix Lane | 22 |
7 | Pratt Avenue | 21 |
8 | White Sulphur Spring Road | 21 |
9 | St. Helena Primary School | 20 |
10 | TFE - Trinchero Napa Valley | 20 |
(local time)
SEE WORLD AQI RANKINGUS AQI
21
live AQI index
Good
Air pollution level | Air quality index | Main pollutant |
---|---|---|
Good | 21 US AQI | PM2.5 |
Pollutants | Concentration | |
---|---|---|
PM2.5 | 3.8µg/m³ |
PM2.5 concentration in Saint Helena air currently meets the WHO annual air quality guideline value
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Day | Pollution level | Weather | Temperature | Wind |
---|---|---|---|---|
Friday, May 17 | Good 19 AQI US | 71.6° 48.2° | 6.7 mp/h | |
Saturday, May 18 | Good 27 AQI US | 77° 46.4° | 6.7 mp/h | |
Sunday, May 19 | Good 25 AQI US | 78.8° 42.8° | 8.9 mp/h | |
Today | Good 21 AQI US | 78.8° 42.8° | 8.9 mp/h | |
Tuesday, May 21 | Good 26 AQI US | 84.2° 53.6° | 8.9 mp/h | |
Wednesday, May 22 | Good 33 AQI US | 82.4° 48.2° | 8.9 mp/h | |
Thursday, May 23 | Good 23 AQI US | 78.8° 51.8° | 4.5 mp/h | |
Friday, May 24 | Good 26 AQI US | 77° 46.4° | 8.9 mp/h | |
Saturday, May 25 | Good 41 AQI US | 75.2° 48.2° | 6.7 mp/h | |
Sunday, May 26 | Good 19 AQI US | 78.8° 46.4° | 6.7 mp/h |
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15Contributors
15 Anonymous Contributors
15 stations
1 Data source