Worst air pollution The Country Club – Clyde/Squirrel Course - Boston, today and tomorrow
Today (18 July): Air quality in The Country Club – Clyde/Squirrel 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: 56.1/100).
Tomorrow (19 July 2026): Air quality in The Country Club – Clyde/Squirrel Course is medium. All pollutants stay as today. Pollution peaks around 1:00 PM (O3: 59.4/100). 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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The Country Club Clyde Squirrel Course air quality reflects the historic Brookline Massachusetts suburban position, with vehicle traffic on surrounding roads contributing local sources. The Charles River provides limited ventilation, while the broader Boston metropolitan regional airshed contributes summer ozone and the course's extraordinary mature tree canopy provides natural filtration, generally maintaining moderate Massachusetts inner suburban readings throughout most of the year.
Today - 18 July | Pollution peaks at 13:00
AQI:
Medium
56.1/100
PM2.5 (fine particles):
Good
12.2/100
PM10 (coarse particles):
Good
5.9/100
NO2 (nitrogen dioxide):
Good
2.1/100
O3 (ozone):
Medium
56.1/100
SO2 (sulfur dioxide):
Good
0.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
6.6/100
PM1 (ultrafine particles):
Good
13.4/100
Levels show the poorest local air quality during the day
Tomorrow - 19 July | Pollution peaks at 13:00
AQI:
Medium
59.4/100
PM2.5 (fine particles):
Good
10.9/100
PM10 (coarse particles):
Good
7.5/100
NO2 (nitrogen dioxide):
Good
2.9/100
O3 (ozone):
Medium
59.4/100
SO2 (sulfur dioxide):
Good
0.3/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
7.7/100
PM1 (ultrafine particles):
Good
12.8/100
Other Landmarks in Boston
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Frequently Asked Questions
Is air quality bad in The Country Club – Clyde/Squirrel Course right now?
On 18 July 2026, overall air quality in The Country Club – Clyde/Squirrel Course is medium. AQI is the main air quality indicator at 56.1/100. Pollution peaks around 1:00 PM (O3: 56.1/100).
Will air quality be worse tomorrow in The Country Club – Clyde/Squirrel Course?
On 19 July 2026, air quality conditions in The Country Club – Clyde/Squirrel Course will be similar to today, with AQI forecast at medium at 59.4/100. Pollution peaks around 1:00 PM (O3: 59.4/100).
When is air pollution at its worst in The Country Club – Clyde/Squirrel Course?
This golf course in Boston sees air quality shift through the year: frequent frontal systems in spring and fall usually keep the air cleanest then, but the combination of local heat and imported regional haze peaks during summer. Coastal sea breezes can offer some relief from inland summer ozone buildup.
Are air quality levels in The Country Club – Clyde/Squirrel 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