Get a monitor and contributor to air quality data in your city.
Air Quality 
Air Monitors
Air Purifiers
For Business
News
Support
Air quality near Chelmsford Station, Chelmsford
Air quality index (AQI) and PM2.5 air pollution near Chelmsford Station, Chelmsford
2.3K people follow this station
Air Quality Map
Real-time Chelmsford Station air pollution map
AIR QUALITY DATA CONTRIBUTORS
Station operated by
Massachusetts Department of Environmental Protection (MassDEP)
Government
Pollen
What is the pollen count in Chelmsford Station today?
 | Index | Very high | |
 | Tree pollen | Very high | |
 | Grass pollen | Low | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather near Chelmsford Station, Chelmsford?
| Weather | Mist |
| Temperature | 53.6°F |
| Humidity | 82% |
| Wind | 0 mp/h |
| Pressure | 29.7 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Casa Grande, Arizona | 86 |
| 2 | Lancaster, Pennsylvania | 70 |
| 3 | The Woodlands, Texas | 68 |
| 4 | Camden, New Jersey | 67 |
| 5 | Wilmington, Delaware | 67 |
| 6 | Mecca, California | 66 |
| 7 | Allentown, Pennsylvania | 65 |
| 8 | Cincinnati, Ohio | 65 |
| 9 | Upper Arlington, Ohio | 65 |
| 10 | Corpus Christi, Texas | 64 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
live aqi station ranking
Real-time Chelmsford air quality ranking
| # | station | US AQI |
|---|---|---|
| 1 | North Chelmsford | 35 |
| 2 | Chelmsford Station | 34 |
| 3 | Carlisle Street | 24 |
(local time)
SEE WORLD AQI RANKING
US AQI
34
live AQI index
Good
Overview
What is the current air quality near Chelmsford Station, Chelmsford?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 34 US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 6.1µg/m³ | |
| O3 | 14µg/m³ | |
| NO2 | 43.2µg/m³ | |
Health Recommendations
What is the current air quality near Chelmsford Station, Chelmsford?
 | Enjoy outdoor activities |
 | Open your windows to bring clean, fresh air indoors GET A MONITOR |
Forecast
Chelmsford Station, Chelmsford air quality index (AQI) forecast
| Day | Pollution level | Weather | Temperature | Wind |
|---|---|---|---|---|
| Saturday, May 4 | Good 31 AQI US | |||
| Sunday, May 5 | Good 21 AQI US | |||
| Monday, May 6 | Good 35 AQI US | |||
| Today | Good 34 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 |
Interested in hourly forecast? Get the app
News
The latest air quality news and resources.
Chelmsford Station air quality data attribution
Contributor
Government Contributor
Where is the cleanest air quality in Chelmsford?
AQI US, Metric