Worst air pollution Warden, today and tomorrow
Today (20 September): Air quality in Warden is moderate. AQI, PM2.5, and PM1 are moderate; PM10, O3, and SO2 are fair; NO2, CO, and HCHO are good. Pollution peaks around 11:00 PM (PM2.5: 54.9/100).
Tomorrow (21 September 2026): Air quality in Warden is poor. AQI worsens to poor; PM2.5 increases to poor; SO2 decreases to good; PM1 increases to poor; all other pollutants stay as today. Pollution peaks around 7:00 AM (PM2.5: 70.4/100). 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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Warden lies roughly 300 km east-northeast of Bloemfontein. Warden deals with the same basic air quality drivers as most Highveld towns: vehicle traffic and maize, sunflower, and grain farming operations, both of which matter most on calm winter mornings when a low inversion holds emissions close to the ground. Summer generally undoes this with stronger, more consistent winds. The wider Highveld region generally follows this same rough pattern.
Today - 20 September | Pollution peaks at 23:00
AQI:
Moderate
54.9/100
PM2.5 (fine particles):
Moderate
54.9/100
PM10 (coarse particles):
Fair
25.3/100
NO2 (nitrogen dioxide):
Good
14.6/100
O3 (ozone):
Fair
34.0/100
SO2 (sulfur dioxide):
Fair
22.6/100
CO (carbon monoxide):
Good
1.0/100
HCHO (formaldehyde):
Good
6.1/100
PM1 (ultrafine particles):
Moderate
49.7/100
Levels show the poorest local air quality during the day
Tomorrow - 21 September | Pollution peaks at 07:00
AQI:
Poor
70.4/100
PM2.5 (fine particles):
Poor
70.4/100
PM10 (coarse particles):
Fair
39.0/100
NO2 (nitrogen dioxide):
Good
11.3/100
O3 (ozone):
Fair
38.9/100
SO2 (sulfur dioxide):
Good
13.0/100
CO (carbon monoxide):
Good
1.2/100
HCHO (formaldehyde):
Good
8.3/100
PM1 (ultrafine particles):
Poor
63.6/100
Pollen forecast in Warden
View pollen forecastFrequently Asked Questions
Is air quality bad in Warden right now?
On 20 September 2026, overall air quality in Warden is moderate. AQI is the main air quality indicator at 54.9/100. Pollution peaks around 11:00 PM (PM2.5: 54.9/100).
Will air quality be worse tomorrow in Warden?
On 21 September 2026, air quality conditions in Warden will be worse than today, with AQI forecast at poor at 70.4/100. Pollution peaks around 7:00 AM (PM2.5: 70.4/100).
When is air pollution at its worst in Warden?
Winter is the tricky season for air quality at Warden, with calm mornings letting emissions from maize, sunflower, and grain farming operations build up under a typical Highveld inversion. Once the rainy season starts around November, conditions generally improve and stay that way into early autumn. This is a familiar pattern across much of the Highveld.
Are air quality levels in Warden 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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