Worst air pollution Halstead Kent, today and tomorrow
Today (20 September): Air quality in Halstead Kent is fair. AQI, PM2.5, PM10, and NO2 are fair; O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 11:00 PM (PM2.5: 40.0/100).
Tomorrow (21 September 2026): Air quality in Halstead Kent is moderate. AQI worsens to moderate; PM2.5 increases to moderate; NO2 increases to moderate; O3 increases to fair; PM1 increases to fair; all other pollutants stay as today. Pollution peaks around 8:00 PM (NO2: 47.8/100). 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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Rush-hour queues near the M90 are usually when readings climb the most. Like much of Kent, Halstead Kent's air quality is shaped less by industry these days and more by everyday road traffic. The region's typical south-westerlies help ventilate the town centre, keeping air quality at moderate levels typical for the region.
Today - 20 September | Pollution peaks at 23:00
AQI:
Fair
40.0/100
PM2.5 (fine particles):
Fair
40.0/100
PM10 (coarse particles):
Fair
25.5/100
NO2 (nitrogen dioxide):
Fair
37.2/100
O3 (ozone):
Good
19.7/100
SO2 (sulfur dioxide):
Good
5.6/100
CO (carbon monoxide):
Good
1.0/100
HCHO (formaldehyde):
Good
7.8/100
PM1 (ultrafine particles):
Good
13.8/100
Levels show the poorest local air quality during the day
Tomorrow - 21 September | Pollution peaks at 20:00
AQI:
Moderate
47.8/100
PM2.5 (fine particles):
Moderate
43.3/100
PM10 (coarse particles):
Fair
32.4/100
NO2 (nitrogen dioxide):
Moderate
47.8/100
O3 (ozone):
Fair
26.2/100
SO2 (sulfur dioxide):
Good
7.1/100
CO (carbon monoxide):
Good
1.4/100
HCHO (formaldehyde):
Good
11.3/100
PM1 (ultrafine particles):
Fair
21.8/100
Pollen forecast in Halstead Kent
View pollen forecastFrequently Asked Questions
Is air quality bad in Halstead Kent right now?
On 20 September 2026, overall air quality in Halstead Kent is fair. AQI is the main air quality indicator at 40.0/100. Pollution peaks around 11:00 PM (PM2.5: 40.0/100).
Will air quality be worse tomorrow in Halstead Kent?
On 21 September 2026, air quality conditions in Halstead Kent will be worse than today, with AQI forecast at moderate at 47.8/100. Pollution peaks around 8:00 PM (NO2: 47.8/100).
When is air pollution at its worst in Halstead Kent?
Most of spring and autumn stays fairly steady, right in the middle of those two extremes. If you're tracking air quality in Halstead Kent, expect it to move around quite a bit through the year. Come winter, NO₂ and PM2.5 usually creep up, as heating and calmer air let M90 traffic emissions linger rather than disperse. Summer sunshine can drive up ozone locally, though overall air generally moves and clears more freely than in winter.
Are air quality levels in Halstead Kent 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.
Why doesn’t the forecast always reflect wildfire impacts?
Airmine’s forecast uses CAMS (Copernicus Atmosphere Monitoring Service) as its background atmospheric model. While CAMS includes wildfire emissions, these are derived from satellite observations and are not available in real time. During rapidly evolving wildfire events, there may therefore be a delay before increased emissions are incorporated into the model. As a result, the forecast may temporarily underestimate PM₂.₅ and other pollutants associated with wildfire smoke.
During rapidly evolving wildfire events, CAMS may lag by approximately 1–2 days before increased wildfire emissions are fully represented, which can lead to temporary underestimation of PM₂.₅ concentrations in Airmine’s forecast.
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Data provided by Airmine — Last update: 20 September 2026 at 14:33 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.
Disclaimer: Forecasts are provided for informational purposes only and should not be relied upon as medical advice. Actual pollen and air quality conditions may vary from the forecast. If you have allergies, asthma, or another medical condition, consult a healthcare professional. Please see our Terms of Service for important information about limitations of liability.
Some text on this page may be generated or summarised using artificial intelligence (AI). Wherever possible, AI-generated content is enriched with Airmine's proprietary data to improve its accuracy and relevance. However, AI-generated content may still contain errors, omissions, or inaccuracies.
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