Worst air pollution Petersfield, today and tomorrow
Today (16 July): Air quality in Petersfield is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 2:00 PM (O3: 35.5/100).
Tomorrow (17 July 2026): Air quality in Petersfield is medium. AQI improves to medium; O3 decreases to medium; all other pollutants stay as today. Pollution peaks around 4:00 PM (O3: 48.7/100). 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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Like much of Hampshire, Petersfield's air quality is shaped less by industry these days and more by everyday road traffic. Traffic on the M8 is the most significant local emissions source, especially at peak times. Shifting coastal winds usually ensure decent dispersal, so levels generally stay within the moderate range typical of UK towns.
Today - 16 July | Pollution peaks at 14:00
AQI:
Fair
35.5/100
PM2.5 (fine particles):
Good
8.1/100
PM10 (coarse particles):
Good
2.9/100
NO2 (nitrogen dioxide):
Good
6.3/100
O3 (ozone):
Fair
35.5/100
SO2 (sulfur dioxide):
Good
0.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
4.3/100
PM1 (ultrafine particles):
Good
7.3/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 16:00
AQI:
Medium
48.7/100
PM2.5 (fine particles):
Good
12.8/100
PM10 (coarse particles):
Good
4.1/100
NO2 (nitrogen dioxide):
Good
8.9/100
O3 (ozone):
Medium
48.7/100
SO2 (sulfur dioxide):
Good
1.5/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.7/100
PM1 (ultrafine particles):
Good
13.1/100
Pollen forecast in Petersfield
View pollen forecastFrequently Asked Questions
Is air quality bad in Petersfield right now?
On 16 July 2026, overall air quality in Petersfield is fair. AQI is the main air quality indicator at 35.5/100. Pollution peaks around 2:00 PM (O3: 35.5/100).
Will air quality be worse tomorrow in Petersfield?
On 17 July 2026, air quality conditions in Petersfield will be better than today, with AQI forecast at medium at 48.7/100. Pollution peaks around 4:00 PM (O3: 48.7/100).
When is air pollution at its worst in Petersfield?
Here's the thing about Petersfield: air quality has a clear seasonal rhythm. The coldest months usually bring the worst readings, as heating and temperature inversions keep M8 emissions from dispersing normally. Come summer, it's ozone rather than particulates that's the bigger concern, especially on still, sunny days. The shoulder seasons generally bring the mildest readings of the year.
Are air quality levels in Petersfield 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