Worst air pollution Bristol, today and tomorrow
Today (16 July): Air quality in Bristol is fair. AQI, NO2, and O3 are fair; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 8:00 AM (O3: 34.1/100).
Tomorrow (17 July 2026): Air quality in Bristol is fair. NO2 decreases to good; all other pollutants stay as today. Pollution peaks around 8:00 AM (O3: 38.0/100). 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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Bristol's air quality in Pennsylvania reflects the Delaware River waterfront position in Bucks County, with vehicle emissions from US-13 and I-95 and the surrounding industrial and residential character contributing local sources. The Delaware River provides limited ventilation, while the broader Philadelphia mid-Atlantic regional airshed contributes elevated summer ozone and the flat Delaware valley coastal plain allows reasonable dispersal, though the riverside industrial corridor maintains moderate to above-average readings throughout the year.
Today - 16 July | Pollution peaks at 08:00
AQI:
Fair
34.1/100
PM2.5 (fine particles):
Good
13.3/100
PM10 (coarse particles):
Good
12.2/100
NO2 (nitrogen dioxide):
Fair
25.2/100
O3 (ozone):
Fair
34.1/100
SO2 (sulfur dioxide):
Good
3.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
4.9/100
PM1 (ultrafine particles):
Good
8.5/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 08:00
AQI:
Fair
38.0/100
PM2.5 (fine particles):
Good
14.4/100
PM10 (coarse particles):
Good
8.3/100
NO2 (nitrogen dioxide):
Good
19.9/100
O3 (ozone):
Fair
38.0/100
SO2 (sulfur dioxide):
Good
2.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.6/100
PM1 (ultrafine particles):
Good
9.2/100
Pollen forecast in Bristol
View pollen forecastFrequently Asked Questions
Is air quality bad in Bristol right now?
On 16 July 2026, overall air quality in Bristol is fair. AQI is the main air quality indicator at 34.1/100. Pollution peaks around 8:00 AM (O3: 34.1/100).
Will air quality be worse tomorrow in Bristol?
On 17 July 2026, air quality conditions in Bristol will be similar to today, with AQI forecast at fair at 38.0/100. Pollution peaks around 8:00 AM (O3: 38.0/100).
When is air pollution at its worst in Bristol?
Air quality across Bristol rises and falls with the seasons — the calmest air of the year usually arrives well after the summer ozone season fades, whereas extended summer heat waves, often worsened by regional haze, bring the toughest air quality stretch. Suburban and rural areas generally see less of the persistent traffic-driven pollution that affects the urban core.
Are air quality levels in Bristol 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