Worst air pollution Essex County Club – Championship Course - Boston, today and tomorrow

Today (18 July): Air quality in Essex County Club – Championship Course is medium. AQI and O3 are medium; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 1:00 PM (O3: 46.6/100).
Tomorrow (19 July 2026): Air quality in Essex County Club – Championship Course is medium. All pollutants stay as today. Pollution peaks around 1:00 PM (O3: 51.5/100). Airmine updates local air quality forecasts four times daily.

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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team

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Essex County Club air quality benefits from its historic Manchester-by-the-Sea Massachusetts North Shore coastal position, with consistent Atlantic and Massachusetts Bay sea breezes providing reliable maritime ventilation. Vehicle traffic contributes very modest local sources, while the outstanding North Shore coastal exposure and the course's extraordinary mature tree canopy generally maintain among Massachusetts' more naturally filtered historic coastal golf environments throughout most of the year.

Today - 18 July | Pollution peaks at 13:00

AQI:

Medium

46.6/100

PM2.5 (fine particles):

Good

11.7/100

PM10 (coarse particles):

Good

3.8/100

NO2 (nitrogen dioxide):

Good

7.1/100

O3 (ozone):

Medium

46.6/100

SO2 (sulfur dioxide):

Good

0.8/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

6.5/100

PM1 (ultrafine particles):

Good

13.5/100

Levels show the poorest local air quality during the day

Tomorrow - 19 July | Pollution peaks at 13:00

AQI:

Medium

51.5/100

PM2.5 (fine particles):

Good

11.2/100

PM10 (coarse particles):

Good

7.4/100

NO2 (nitrogen dioxide):

Good

8.9/100

O3 (ozone):

Medium

51.5/100

SO2 (sulfur dioxide):

Good

0.8/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

6.5/100

PM1 (ultrafine particles):

Good

13.1/100

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Frequently Asked Questions

Is air quality bad in Essex County Club – Championship Course right now?

On 18 July 2026, overall air quality in Essex County Club – Championship Course is medium. AQI is the main air quality indicator at 46.6/100. Pollution peaks around 1:00 PM (O3: 46.6/100).

Will air quality be worse tomorrow in Essex County Club – Championship Course?

On 19 July 2026, air quality conditions in Essex County Club – Championship Course will be similar to today, with AQI forecast at medium at 51.5/100. Pollution peaks around 1:00 PM (O3: 51.5/100).

When is air pollution at its worst in Essex County Club – Championship Course?

Air quality around Essex County Club – Championship Course changes with the seasons, as the cleanest conditions typically arrive with the more unsettled weather of spring and autumn; by contrast, hot, humid summer days bring the highest ozone risk, often worsened by pollution transported in from other regions. Winter cold fronts tend to clear the air quickly, so extended pollution episodes are relatively uncommon.

Are air quality levels in Essex County Club – Championship Course 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: 18 July 2026 at 21:30 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