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AIR QUALITY DATA SOURCE
Find out more about contributors and data sourcesIndex | Very high | ||
Tree pollen | Very high | ||
Grass pollen | Low | ||
Weed pollen | None |
Weather | Broken clouds |
Temperature | 64.4°F |
Humidity | 92% |
Wind | 3.4 mp/h |
Pressure | 29.9 Hg |
# | city | US AQI |
---|---|---|
1 | Coachella, California | 143 |
2 | Boerne, Texas | 106 |
3 | Mecca, California | 104 |
4 | Maricopa, Arizona | 94 |
5 | Corpus Christi, Texas | 86 |
6 | Casa Grande, Arizona | 79 |
7 | Baton Rouge, Louisiana | 78 |
8 | San Antonio, Texas | 77 |
9 | Thermal, California | 75 |
10 | Shreveport, Louisiana | 73 |
(local time)
SEE WORLD AQI RANKINGUS AQI
66*
live AQI index
Moderate
Air pollution level | Air quality index | Main pollutant |
---|---|---|
Moderate | 66* US AQI | PM2.5 |
Pollutants | Concentration | |
---|---|---|
PM2.5 | 17.1*µg/m³ |
PM2.5
x3.4
PM2.5 concentration in O'Fallon is currently 3.4 times the WHO annual air quality guideline value
Sensitive groups should reduce outdoor exercise | |
Close your windows to avoid dirty outdoor air GET A MONITOR | |
Sensitive groups should wear a mask outdoors GET A MASK | |
Sensitive groups should run an air purifier GET AN AIR PURIFIER |
Day | Pollution level | Weather | Temperature | Wind |
---|---|---|---|---|
Today | Moderate 66 AQI US | 100% | 68° 59° | 8.9 mp/h |
Friday, May 17 | Moderate 57 AQI US | 100% | 71.6° 59° | 8.9 mp/h |
Saturday, May 18 | Moderate 63 AQI US | 78.8° 57.2° | 4.5 mp/h | |
Sunday, May 19 | Moderate 64 AQI US | 82.4° 62.6° | 4.5 mp/h | |
Monday, May 20 | Moderate 56 AQI US | 86° 66.2° | 11.2 mp/h | |
Tuesday, May 21 | Moderate 67 AQI US | 100% | 84.2° 62.6° | 15.7 mp/h |
Wednesday, May 22 | Moderate 56 AQI US | 100% | 73.4° 53.6° | 8.9 mp/h |
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