Worst air pollution Colt Gateway - Hartford, today and tomorrow
Today (16 July): Air quality in Colt Gateway 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 Colt Gateway is fair. AQI improves to medium; NO2 decreases to medium; all other pollutants stay as today. Pollution peaks around 11:00 PM (NO2: 40.6/100). 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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Hartford's Colt Gateway air quality reflects the historic Colt firearms factory adaptive reuse complex, with vehicle traffic on the surrounding Van Dyke Avenue corridor contributing local sources. The Connecticut River provides limited ventilation, while the neighbourhood's industrial conversion character and the residential development generally maintain moderate Hartford metropolitan readings throughout most of the year.
Today - 16 July | Pollution peaks at 12:00
AQI:
Fair
36.7/100
PM2.5 (fine particles):
Good
14.1/100
PM10 (coarse particles):
Good
14.5/100
NO2 (nitrogen dioxide):
Fair
36.6/100
O3 (ozone):
Fair
36.7/100
SO2 (sulfur dioxide):
Good
5.0/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.5/100
PM1 (ultrafine particles):
Good
9.5/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 23:00
AQI:
Medium
40.6/100
PM2.5 (fine particles):
Good
9.1/100
PM10 (coarse particles):
Good
3.7/100
NO2 (nitrogen dioxide):
Medium
40.6/100
O3 (ozone):
Fair
37.6/100
SO2 (sulfur dioxide):
Good
2.0/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.2/100
PM1 (ultrafine particles):
Good
7.5/100
Other Landmarks in Hartford
Frequently Asked Questions
Is air quality bad in Colt Gateway right now?
On 16 July 2026, overall air quality in Colt Gateway 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 Colt Gateway?
On 17 July 2026, air quality conditions in Colt Gateway will be similar to today, with O3 forecast at fair at 37.6/100. Pollution peaks around 11:00 PM (NO2: 40.6/100).
When is air pollution at its worst in Colt Gateway?
Like the rest of Hartford, Colt Gateway sees air quality change through the year. In short, the cleanest conditions typically arrive with the more unsettled weather of spring and autumn, whereas 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 Colt Gateway 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