Worst air pollution Braintree, today and tomorrow

Today (16 July): Air quality in Braintree is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 4:00 PM (O3: 31.6/100).
Tomorrow (17 July 2026): Air quality in Braintree is fair. All pollutants stay as today. Pollution peaks around 3:00 PM (O3: 36.0/100). 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 Essex, Braintree sees an air quality profile that's largely down to traffic and general town-centre activity. Northwesterly winds off the coast do most of the work keeping things in check, more so than any local policy or infrastructure change. Emissions along the M40 represent the town's main traffic-related pollution source.

Today - 16 July | Pollution peaks at 16:00

AQI:

Fair

31.6/100

PM2.5 (fine particles):

Good

10.0/100

PM10 (coarse particles):

Good

3.4/100

NO2 (nitrogen dioxide):

Good

12.9/100

O3 (ozone):

Fair

31.6/100

SO2 (sulfur dioxide):

Good

2.1/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

2.5/100

PM1 (ultrafine particles):

Good

8.7/100

Levels show the poorest local air quality during the day

Tomorrow - 17 July | Pollution peaks at 15:00

AQI:

Fair

36.0/100

PM2.5 (fine particles):

Good

13.1/100

PM10 (coarse particles):

Good

4.5/100

NO2 (nitrogen dioxide):

Good

15.9/100

O3 (ozone):

Fair

36.0/100

SO2 (sulfur dioxide):

Good

2.8/100

CO (carbon monoxide):

Good

0.0/100

HCHO (formaldehyde):

Good

3.3/100

PM1 (ultrafine particles):

Good

11.9/100

Pollen forecast in Braintree

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Frequently Asked Questions

Is air quality bad in Braintree right now?

On 16 July 2026, overall air quality in Braintree is fair. AQI is the main air quality indicator at 31.6/100. Pollution peaks around 4:00 PM (O3: 31.6/100).

Will air quality be worse tomorrow in Braintree?

On 17 July 2026, air quality conditions in Braintree will be similar to today, with AQI forecast at fair at 36.0/100. Pollution peaks around 3:00 PM (O3: 36.0/100).

When is air pollution at its worst in Braintree?

Air quality in Braintree isn't the same all year round — it really shifts with the seasons. Winter mornings can be the trickiest, with cold, still conditions trapping M40 traffic fumes and smoke from home fires close to the ground. Summer sunshine can drive up ozone locally, though overall air generally moves and clears more freely than in winter. Spring and autumn tend to be the calmer, more moderate stretches by comparison.

Are air quality levels in Braintree 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.

Want to see air quality forecasts for other cities in United Kingdom?

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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