Worst air pollution Marlow, today and tomorrow
Today (16 July): Air quality in Marlow is fair. AQI, NO2, and O3 are fair; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 3:00 PM (O3: 34.0/100).
Tomorrow (17 July 2026): Air quality in Marlow is fair. AQI improves to medium; O3 decreases to medium; all other pollutants stay as today. Pollution peaks around 4:00 PM (O3: 43.6/100). 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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Being part of Buckinghamshire, Marlow sees an air quality profile that's largely down to traffic and general town-centre activity. Commuter traffic feeding onto the M6 adds a further, consistent contribution to local readings. Southwesterly winds help ventilate the town centre, keeping air quality at moderate levels typical for the region.
Today - 16 July | Pollution peaks at 15:00
AQI:
Fair
34.0/100
PM2.5 (fine particles):
Good
10.3/100
PM10 (coarse particles):
Good
3.5/100
NO2 (nitrogen dioxide):
Fair
20.1/100
O3 (ozone):
Fair
34.0/100
SO2 (sulfur dioxide):
Good
2.7/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.8/100
PM1 (ultrafine particles):
Good
9.8/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 16:00
AQI:
Medium
43.6/100
PM2.5 (fine particles):
Good
14.1/100
PM10 (coarse particles):
Good
4.7/100
NO2 (nitrogen dioxide):
Fair
26.2/100
O3 (ozone):
Medium
43.6/100
SO2 (sulfur dioxide):
Good
3.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.2/100
PM1 (ultrafine particles):
Good
13.2/100
Pollen forecast in Marlow
View pollen forecastFrequently Asked Questions
Is air quality bad in Marlow right now?
On 16 July 2026, overall air quality in Marlow is fair. AQI is the main air quality indicator at 34.0/100. Pollution peaks around 3:00 PM (O3: 34.0/100).
Will air quality be worse tomorrow in Marlow?
On 17 July 2026, air quality conditions in Marlow will be similar to today, with NO2 forecast at fair at 26.2/100. Pollution peaks around 4:00 PM (O3: 43.6/100).
When is air pollution at its worst in Marlow?
You can roughly predict Marlow's air quality just by knowing the time of year. Once the heating goes on and the air turns still, pollution from the M6 and nearby chimneys tends to build up rather than clear. Summer's more of a mixed bag: ozone can spike in strong sun, but overall dispersion tends to be better than the depths of winter. Most of spring and autumn stays fairly steady, right in the middle of those two extremes.
Are air quality levels in Marlow 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