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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 | Clear sky |
Temperature | 55.4°F |
Humidity | 78% |
Wind | 5.7 mp/h |
Pressure | 29.8 Hg |
# | city | US AQI |
---|---|---|
1 | Corpus Christi, Texas | 89 |
2 | Newport, Kentucky | 79 |
3 | Elizabethtown, Pennsylvania | 75 |
4 | The Woodlands, Texas | 73 |
5 | Casa Grande, Arizona | 71 |
6 | Cincinnati, Ohio | 69 |
7 | Camden, New Jersey | 68 |
8 | Lancaster, Pennsylvania | 68 |
9 | Baltimore, Maryland | 67 |
10 | Calexico, California | 67 |
(local time)
SEE WORLD AQI RANKING# | station | US AQI |
---|---|---|
1 | Chelmsford Station | 31 |
2 | North Chelmsford | 29 |
3 | Carlisle Street | 21 |
(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 | 3.7µg/m³ |
Enjoy outdoor activities | |
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Day | Pollution level | Weather | Temperature | Wind |
---|---|---|---|---|
Saturday, May 4 | Good 15 AQI US | |||
Sunday, May 5 | Good 15 AQI US | |||
Monday, May 6 | Good 27 AQI US | |||
Today | Good 21 AQI US | 73.4° 53.6° | 6.7 mp/h | |
Wednesday, May 8 | Good 44 AQI US | 100% | 55.4° 50° | 4.5 mp/h |
Thursday, May 9 | Good 48 AQI US | 100% | 68° 46.4° | 8.9 mp/h |
Friday, May 10 | Good 7 AQI US | 100% | 46.4° 44.6° | 8.9 mp/h |
Saturday, May 11 | Good 12 AQI US | 40% | 55.4° 42.8° | 4.5 mp/h |
Sunday, May 12 | Good 21 AQI US | 80% | 64.4° 46.4° | 11.2 mp/h |
Monday, May 13 | Good 40 AQI US | 90% | 60.8° 48.2° | 8.9 mp/h |
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