Worst air pollution Mystic Seaport Museum - Mystic, today and tomorrow

Today (21 July): Air quality in Mystic Seaport Museum is medium. AQI and O3 are medium; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 8:00 AM (O3: 44.6/100).
Tomorrow (22 July 2026): Air quality in Mystic Seaport Museum is fair. AQI worsens to fair; O3 increases to fair; all other pollutants stay as today. Pollution peaks around 11:00 AM (O3: 39.8/100). 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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Mystic Seaport Museum's air quality benefits from the Mystic River estuary coastal position in eastern Connecticut, with consistent Long Island Sound and Atlantic sea breezes providing reliable maritime ventilation around the extraordinary living maritime museum. Vehicle traffic on Greenmanville Avenue contributes modest seasonal sources, while the waterfront position and the Sound's maritime exposure generally maintain good to moderate conditions at this extraordinary New England maritime heritage site throughout most of the year.

Today - 21 July | Pollution peaks at 08:00

AQI:

Medium

44.6/100

PM2.5 (fine particles):

Good

19.1/100

PM10 (coarse particles):

Good

14.3/100

NO2 (nitrogen dioxide):

Good

15.3/100

O3 (ozone):

Medium

44.6/100

SO2 (sulfur dioxide):

Good

1.1/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

8.2/100

PM1 (ultrafine particles):

Good

14.2/100

Levels show the poorest local air quality during the day

Tomorrow - 22 July | Pollution peaks at 11:00

AQI:

Fair

39.8/100

PM2.5 (fine particles):

Good

18.1/100

PM10 (coarse particles):

Good

13.8/100

NO2 (nitrogen dioxide):

Good

17.0/100

O3 (ozone):

Fair

39.8/100

SO2 (sulfur dioxide):

Good

1.5/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

5.5/100

PM1 (ultrafine particles):

Good

12.0/100

Other Landmarks in Mystic

Frequently Asked Questions

Is air quality bad in Mystic Seaport Museum right now?

On 21 July 2026, overall air quality in Mystic Seaport Museum is medium. AQI is the main air quality indicator at 44.6/100. Pollution peaks around 8:00 AM (O3: 44.6/100).

Will air quality be worse tomorrow in Mystic Seaport Museum?

On 22 July 2026, air quality conditions in Mystic Seaport Museum will be worse than today, with AQI forecast at fair at 39.8/100. Pollution peaks around 11:00 AM (O3: 39.8/100).

When is air pollution at its worst in Mystic Seaport Museum?

Mystic Seaport Museum's air quality follows a clear seasonal pattern: the shoulder seasons bring the most consistently clean air of the year, but the combination of local heat and imported regional haze peaks during summer. Winter cold fronts tend to clear the air quickly, so extended pollution episodes are relatively uncommon.

Are air quality levels in Mystic Seaport Museum 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.

Why doesn’t the forecast always reflect wildfire impacts?

Airmine’s forecast uses CAMS (Copernicus Atmosphere Monitoring Service) as its background atmospheric model. While CAMS includes wildfire emissions, these are derived from satellite observations and are not available in real time. During rapidly evolving wildfire events, there may therefore be a delay before increased emissions are incorporated into the model. As a result, the forecast may temporarily underestimate PM₂.₅ and other pollutants associated with wildfire smoke.

During rapidly evolving wildfire events, CAMS may lag by approximately 1–2 days before increased wildfire emissions are fully represented, which can lead to temporary underestimation of PM₂.₅ concentrations in Airmine’s forecast.

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Data provided by Airmine — Last update: 21 July 2026 at 10:44 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