Be the first to measure and contribute air quality data to your community
Air Quality 
Air Monitors
Air Purifiers
For Business
News
Support
Air quality in Castine
Air quality index (AQI) and PM2.5 air pollution in Castine
26 people follow this city
Castine Air Quality Map
Real-time Castine air pollution map
AIR QUALITY DATA SOURCE
* AQI modeled using satellite data Learn more
Pollen
What is the pollen count in Castine today?
 | Index | Very high | |
 | Tree pollen | Very high | |
 | Grass pollen | Low | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather in Castine?
| Weather | Clear sky |
| Temperature | 59°F |
| Humidity | 66% |
| Wind | 6 mp/h |
| Pressure | 30.1 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 |  Mecca, California | 88 |
| 2 | Claremont, California | 86 |
| 3 | Corpus Christi, Texas | 84 |
| 4 | Redlands, California | 83 |
| 5 | Pasadena, California | 81 |
| 6 | San Bernardino, California | 80 |
| 7 | San Fernando, California | 80 |
| 8 | Glendale, California | 78 |
| 9 | Glendora, California | 78 |
| 10 | Mount Lebanon, Pennsylvania | 78 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
US AQI
31*
live AQI index
Good
Overview
What is the current air quality in Castine?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 31* US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 5.6*µg/m³ | |
!
PM2.5
x1.1
PM2.5 concentration in Castine is currently 1.1 times the WHO annual air quality guideline value
Health Recommendations
What is the current air quality in Castine?
 | Enjoy outdoor activities |
 | Open your windows to bring clean, fresh air indoors GET A MONITOR |
Forecast
Castine air quality index (AQI) forecast
| Day | Pollution level | Weather | Temperature | Wind |
|---|---|---|---|---|
| Today | Good 31 AQI US | | 68° 46.4° |  8.9 mp/h |
| Sunday, Jun 2 | Good 17 AQI US | | 68° 44.6° | 6.7 mp/h |
| Monday, Jun 3 | Good 21 AQI US |  | 66.2° 48.2° | 6.7 mp/h |
| Tuesday, Jun 4 | Good 18 AQI US |  20% | 62.6° 50° | 4.5 mp/h |
| Wednesday, Jun 5 | Good 25 AQI US | | 68° 51.8° | 11.2 mp/h |
| Thursday, Jun 6 | Good 25 AQI US |  | 64.4° 50° | 11.2 mp/h |
| Friday, Jun 7 | Good 16 AQI US | 100% | 59° 51.8° | 13.4 mp/h |
Interested in hourly forecast? Get the app
News
The latest air quality news and resources.
How to best protect from air pollution?
Where is the cleanest air quality in Castine?
No locations are available.
AQI US, Metric