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Air quality in Chelmsford
Air quality index (AQI) and PM2.5 air pollution in Chelmsford
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Chelmsford Air Quality Map
Real-time Chelmsford air pollution map
AIR QUALITY DATA CONTRIBUTORS
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Pollen
What is the pollen count in Chelmsford today?
 | Index | None | |
 | Tree pollen | None | |
 | Grass pollen | None | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather in Chelmsford?
| Weather | Broken clouds |
| Temperature | 66.2°F |
| Humidity | 71% |
| Wind | 6.9 mph |
| Pressure | 30.1 inHg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 |  Bakersfield, California | 111 |
| 2 | Three Rivers, Oregon | 97 |
| 3 | El Paso, Texas | 96 |
| 4 | Calexico, California | 95 |
| 5 | Sawtooth City, Idaho | 90 |
| 6 | Tustin, California | 90 |
| 7 | Alhambra, California | 88 |
| 8 | Coronado, California | 88 |
| 9 | Monterey Park, California | 88 |
| 10 | Santa Monica, California | 87 |
(Local time)
SEE WORLD AQI RANKING
3D animated air pollution map
live Chelmsford aqi ranking
Real-time Chelmsford air quality ranking
| # | station | US AQI |
|---|---|---|
| 1 | Chelmsford Station | 26 |
| 2 | North Chelmsford | 18 |
| 3 | Carlisle Street | 17 |
(Local time)
SEE WORLD AQI RANKING
US AQI
18
live AQI index
Good
Overview
What is the current air quality in Chelmsford?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 18 US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 3.3µg/m³ | |
| NO2 | 22µg/m³ | |
✓
PM2.5 concentration in Chelmsford air currently meets the WHO annual air quality guideline value
Health Recommendations
What is the current air quality in Chelmsford?
 | Enjoy outdoor activities |
 | Open your windows to bring clean, fresh air indoors GET A MONITOR |
Forecast
Chelmsford air quality index (AQI) forecast
| Day | Pollution level | Weather | Temperature | Wind |
|---|---|---|---|---|
| Monday, Sep 30 | Good 28 AQI US | | 68° 53.6° |  8.9 mph |
| Tuesday, Oct 1 | Good 19 AQI US | | 62.6° 50° | 2.2 mph |
| Wednesday, Oct 2 | Good 22 AQI US | | 71.6° 50° | 4.5 mph |
| Today | Good 18 AQI US | | 71.6° 50° | 4.5 mph |
| Friday, Oct 4 | Good 47 AQI US | | 73.4° 51.8° | 4.5 mph |
| Saturday, Oct 5 | Moderate 62 AQI US  |  | 71.6° 51.8° | 6.7 mph |
| Sunday, Oct 6 | Moderate 55 AQI US | | 66.2° 48.2° | 6.7 mph |
| Monday, Oct 7 | Good 46 AQI US |  50% | 68° 48.2° | 11.2 mph |
| Tuesday, Oct 8 | Good 19 AQI US | | 62.6° 42.8° | 6.7 mph |
| Wednesday, Oct 9 | Good 8 AQI US | | 57.2° 39.2° | 8.9 mph |
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News
The latest air quality news and resources.
How to best protect from air pollution?
Chelmsford air quality data attribution
Data validated and calibrated by IQAirWhere is the cleanest air quality in Chelmsford?
AQI US, Metric