Worst air pollution East Grinstead, today and tomorrow
Today (16 July): Air quality in East Grinstead is fair. AQI, NO2, and O3 are fair; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 2:00 PM (O3: 35.5/100).
Tomorrow (17 July 2026): Air quality in East Grinstead is fair. 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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East Grinstead sits within West Sussex, and its air quality profile is driven mainly by road traffic and the density of the centre. The area's changeable Atlantic weather generally provide reasonable ventilation, keeping levels close to typical UK urban averages for a town this size. Emissions along the A9 represent the town's main traffic-related pollution source.
Today - 16 July | Pollution peaks at 14:00
AQI:
Fair
35.5/100
PM2.5 (fine particles):
Good
10.6/100
PM10 (coarse particles):
Good
3.8/100
NO2 (nitrogen dioxide):
Fair
20.9/100
O3 (ozone):
Fair
35.5/100
SO2 (sulfur dioxide):
Good
3.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
4.3/100
PM1 (ultrafine particles):
Good
9.5/100
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
16.8/100
PM10 (coarse particles):
Good
5.4/100
NO2 (nitrogen dioxide):
Fair
27.5/100
O3 (ozone):
Medium
48.7/100
SO2 (sulfur dioxide):
Good
5.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.7/100
PM1 (ultrafine particles):
Good
17.2/100
Pollen forecast in East Grinstead
View pollen forecastFrequently Asked Questions
Is air quality bad in East Grinstead right now?
On 16 July 2026, overall air quality in East Grinstead 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 East Grinstead?
On 17 July 2026, air quality conditions in East Grinstead will be similar to today, with NO2 forecast at fair at 27.5/100. Pollution peaks around 4:00 PM (O3: 48.7/100).
When is air pollution at its worst in East Grinstead?
East Grinstead doesn't have one fixed air quality level — it swings between two extremes each year. Come summer, it's ozone rather than particulates that's the bigger concern, especially on still, sunny days. In deep winter, a lack of wind lets A9 traffic fumes and woodsmoke settle instead of blowing through. For much of spring and autumn, things settle into a fairly unremarkable middle ground.
Are air quality levels in East Grinstead 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