Worst air pollution Grafton Square - Worcester, today and tomorrow
Today (30 August): Air quality in Grafton Square is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 11:00 AM (O3: 36.9/100).
Tomorrow (31 August 2026): Air quality in Grafton Square is fair. All pollutants stay as today. Pollution peaks around 8:00 AM (O3: 36.2/100). Airmine updates local air quality forecasts four times daily.
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In Grafton Square, steady traffic flow and dense urban activity form the main source of local particulate matter here. Nearby trees help trap a portion of this particulate load before it spreads. The surrounding area tends to follow a similar pattern, with only minor local variation. Wind patterns on any given day can shift this picture meaningfully in either direction.
Today - 30 August | Pollution peaks at 11:00
AQI:
Fair
36.9/100
PM2.5 (fine particles):
Good
1.9/100
PM10 (coarse particles):
Good
0.7/100
NO2 (nitrogen dioxide):
Good
10.7/100
O3 (ozone):
Fair
36.9/100
SO2 (sulfur dioxide):
Good
0.7/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
7.4/100
PM1 (ultrafine particles):
Good
1.9/100
Levels show the poorest local air quality during the day
Tomorrow - 31 August | Pollution peaks at 08:00
AQI:
Fair
36.2/100
PM2.5 (fine particles):
Good
4.1/100
PM10 (coarse particles):
Good
2.0/100
NO2 (nitrogen dioxide):
Good
11.2/100
O3 (ozone):
Fair
36.2/100
SO2 (sulfur dioxide):
Good
0.8/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
7.2/100
PM1 (ultrafine particles):
Good
2.4/100
Other Landmarks in Worcester
Sports venues in Worcester
Frequently Asked Questions
Is air quality bad in Grafton Square right now?
On 30 August 2026, overall air quality in Grafton Square is fair. AQI is the main air quality indicator at 36.9/100. Pollution peaks around 11:00 AM (O3: 36.9/100).
Will air quality be worse tomorrow in Grafton Square?
On 31 August 2026, air quality conditions in Grafton Square will be similar to today, with AQI forecast at fair at 36.2/100. Pollution peaks around 8:00 AM (O3: 36.2/100).
When is air pollution at its worst in Grafton Square?
Air quality often dips most sharply in winter in this urban setting, when winter inversions hold traffic and heating emissions in place over the city for days at a time. The warmer months shift the main air quality risk here toward ground-level ozone, since hot, sunny days accelerate the chemical reactions that turn traffic emissions into ozone.
Are air quality levels in Grafton Square 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: 30 August 2026 at 14:32 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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