Worst air pollution Acadia Carriage Roads - Bar Harbor, today and tomorrow
Today (16 July): Air quality in Acadia Carriage Roads is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 9:00 AM (O3: 37.5/100).
Tomorrow (17 July 2026): Air quality in Acadia Carriage Roads is fair. All pollutants stay as today. Pollution peaks around 8:00 AM (O3: 30.7/100). Airmine updates local air quality forecasts four times daily.
For long term forecasts and maps, see the Airmine app
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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Acadia's Carriage Roads air quality benefits from the exceptional Mount Desert Island coastal forest position, with consistent Atlantic and Gulf of Maine sea breezes providing reliable maritime ventilation through the 45-mile historic carriage road network. Vehicle traffic is absent on the carriage roads themselves, while the extraordinary Atlantic coastal island forest provides exceptional natural filtration and the outstanding maritime exposure generally maintains excellent conditions on the carriage road network throughout most of the year.
Today - 16 July | Pollution peaks at 09:00
AQI:
Fair
37.5/100
PM2.5 (fine particles):
Good
12.6/100
PM10 (coarse particles):
Good
6.4/100
NO2 (nitrogen dioxide):
Good
15.7/100
O3 (ozone):
Fair
37.5/100
SO2 (sulfur dioxide):
Good
2.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.0/100
PM1 (ultrafine particles):
Good
11.3/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 08:00
AQI:
Fair
30.7/100
PM2.5 (fine particles):
Good
11.0/100
PM10 (coarse particles):
Good
4.4/100
NO2 (nitrogen dioxide):
Good
14.8/100
O3 (ozone):
Fair
30.7/100
SO2 (sulfur dioxide):
Good
2.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.3/100
PM1 (ultrafine particles):
Good
8.9/100
Other Landmarks in Bar Harbor
Frequently Asked Questions
Is air quality bad in Acadia Carriage Roads right now?
On 16 July 2026, overall air quality in Acadia Carriage Roads is fair. AQI is the main air quality indicator at 37.5/100. Pollution peaks around 9:00 AM (O3: 37.5/100).
Will air quality be worse tomorrow in Acadia Carriage Roads?
On 17 July 2026, air quality conditions in Acadia Carriage Roads will be similar to today, with AQI forecast at fair at 30.7/100. Pollution peaks around 8:00 AM (O3: 30.7/100).
When is air pollution at its worst in Acadia Carriage Roads?
Air quality around Acadia Carriage Roads changes with the seasons. In short, the shoulder seasons bring the most consistently clean air of the year, whereas summer heat waves, often worsened by haze drifting in from other regions, bring the year's worst air. Winter cold fronts tend to clear the air quickly, so extended pollution episodes are relatively uncommon.
Are air quality levels in Acadia Carriage Roads based on measurements or forecasts?
It is forecasts derived by downscaling forecasts provided by EU’s Copernicus Atmosphere Monitoring Service (CAMS) by taking into account local conditions such as traffic patterns. CAMS bases its forecast on satellite measurements of particles and chemical compounds in the atmosphere. Airmine’s services were developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team.
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Data provided by Airmine — Last update: 16 July 2026 at 10:33 CEST (Data is updated four times daily.)
This forecast is produced independently using Airmine's own atmospheric data and models.
Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.
For long term forecasts and maps, see the Airmine app