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AIR QUALITY DATA CONTRIBUTORS
Find out more about contributors and data sourcesIndex | Very high | ||
Tree pollen | Very high | ||
Grass pollen | Low | ||
Weed pollen | None |
Weather | Broken clouds |
Temperature | 59°F |
Humidity | 87% |
Wind | 1 mp/h |
Pressure | 29.8 Hg |
# | city | US AQI |
---|---|---|
1 | Palm Desert, California | 149 |
2 | Corpus Christi, Texas | 133 |
3 | Oklahoma City, Oklahoma | 95 |
4 | Houston, Texas | 88 |
5 | Pasadena, Texas | 83 |
6 | Channelview, Texas | 82 |
7 | Edmond, Oklahoma | 80 |
8 | Galena Park, Texas | 78 |
9 | Tulsa, Oklahoma | 76 |
10 | Casa Grande, Arizona | 75 |
(local time)
SEE WORLD AQI RANKING# | station | US AQI |
---|---|---|
1 | Chelmsford Station | 31 |
2 | North Chelmsford | 30 |
3 | Carlisle Street | 28 |
(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 | 5.3µg/m³ |
PM2.5
x1.1
PM2.5 concentration in Chelmsford is currently 1.1 times the WHO annual air quality guideline value
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Day | Pollution level | Weather | Temperature | Wind |
---|---|---|---|---|
Thursday, May 23 | Good 29 AQI US | 82.4° 57.2° | 13.4 mp/h | |
Friday, May 24 | Good 19 AQI US | 77° 53.6° | 4.5 mp/h | |
Saturday, May 25 | Good 30 AQI US | 82.4° 59° | 6.7 mp/h | |
Today | Good 29 AQI US | 90% | 82.4° 59° | 6.7 mp/h |
Monday, May 27 | Moderate 59 AQI US | 100% | 69.8° 55.4° | 11.2 mp/h |
Tuesday, May 28 | Good 47 AQI US | 100% | 84.2° 62.6° | 11.2 mp/h |
Wednesday, May 29 | Moderate 53 AQI US | 75.2° 51.8° | 13.4 mp/h | |
Thursday, May 30 | Good 21 AQI US | 69.8° 50° | 8.9 mp/h | |
Friday, May 31 | Good 11 AQI US | 68° 44.6° | 11.2 mp/h | |
Saturday, Jun 1 | Good 14 AQI US | 75.2° 48.2° | 8.9 mp/h |
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