Worst air pollution Chatham, today and tomorrow
Today (16 July): Air quality in Chatham is fair. AQI, NO2, and O3 are fair; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 12:00 PM (O3: 36.7/100).
Tomorrow (17 July 2026): Air quality in Chatham is fair. All pollutants stay as today. Pollution peaks around 1:00 PM (O3: 37.6/100). 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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Chatham experiences air quality conditions shaped chiefly by Cape Cod sea breeze, and exposure to open ocean keeps air quality reliably good. Day-to-day conditions in Chatham can still vary with local weather, wind direction, and time of year. Local topography and prevailing winds both play a role in how quickly conditions change.
Today - 16 July | Pollution peaks at 12:00
AQI:
Fair
36.7/100
PM2.5 (fine particles):
Good
12.0/100
PM10 (coarse particles):
Good
12.3/100
NO2 (nitrogen dioxide):
Fair
21.9/100
O3 (ozone):
Fair
36.7/100
SO2 (sulfur dioxide):
Good
2.7/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.5/100
PM1 (ultrafine particles):
Good
8.0/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 13:00
AQI:
Fair
37.6/100
PM2.5 (fine particles):
Good
7.7/100
PM10 (coarse particles):
Good
3.1/100
NO2 (nitrogen dioxide):
Fair
24.4/100
O3 (ozone):
Fair
37.6/100
SO2 (sulfur dioxide):
Good
1.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.2/100
PM1 (ultrafine particles):
Good
6.4/100
Pollen forecast in Chatham
View pollen forecastFrequently Asked Questions
Is air quality bad in Chatham right now?
On 16 July 2026, overall air quality in Chatham is fair. AQI is the main air quality indicator at 36.7/100. Pollution peaks around 12:00 PM (O3: 36.7/100).
Will air quality be worse tomorrow in Chatham?
On 17 July 2026, air quality conditions in Chatham will be similar to today, with AQI forecast at fair at 37.6/100. Pollution peaks around 1:00 PM (O3: 37.6/100).
When is air pollution at its worst in Chatham?
Conditions in Chatham vary noticeably across 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. Coastal sea breezes can offer some relief from inland summer ozone buildup.
Are air quality levels in Chatham 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