South Congress Avenue, Austin Air Quality Forecast - Today, Tomorrow
Air Quality Today
Today (6 October): Air quality in South Congress Avenue is moderate. AQI and PM10 are moderate; PM2.5 is fair; NO2, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 12:00 PM (PM10: 44.3/100).
Air Quality Tomorrow
Tomorrow (7 October 2026): Air quality in South Congress Avenue is poor. AQI worsens to poor; PM2.5 increases to moderate; PM10 increases to poor; all other pollutants stay as today. Pollution peaks around 10:00 AM (PM10: 77.4/100).
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Air Quality
Today - 6 October
| Pollen species | Level | Value |
|---|---|---|
| AQI | Moderate | 44.3/100 |
| PM2.5 (fine particles) | Fair | 23.1/100 |
| PM10 (coarse particles) | Moderate | 44.3/100 |
| NO2 (nitrogen dioxide) | Good | 0.5/100 |
| O3 (ozone) | Good | 13.2/100 |
| SO2 (sulfur dioxide) | Good | 1.2/100 |
| CO (carbon monoxide) | Good | 0.4/100 |
| HCHO (formaldehyde) | Good | 0.6/100 |
| PM1 (ultrafine particles) | Good | 3.0/100 |
Tomorrow - 7 October
| Pollen species | Level | Value |
|---|---|---|
| AQI | Poor | 77.4/100 |
| PM2.5 (fine particles) | Moderate | 48.4/100 |
| PM10 (coarse particles) | Poor | 77.4/100 |
| NO2 (nitrogen dioxide) | Good | 1.6/100 |
| O3 (ozone) | Good | 11.0/100 |
| SO2 (sulfur dioxide) | Good | 3.2/100 |
| CO (carbon monoxide) | Good | 0.4/100 |
| HCHO (formaldehyde) | Good | 1.0/100 |
| PM1 (ultrafine particles) | Good | 4.4/100 |
Local Environmental Conditions
Around this site in Austin, dense development means road traffic is the main local source of nitrogen dioxide and fine particles. Pockets of trees and green space help filter a small share of the particles from traffic. Air arriving from elsewhere in the region adds to what is produced locally.
Particle levels tend to be highest from December to February, when home heating and traffic add more emissions and cold, calm spells at around 10°C can leave a light winter haze over the city. From April to October, strong sunshine and temperatures around 31°C drive ozone formation, with levels peaking in the afternoon. Overall, breezy weather in April, with winds near 20 km/h, tends to sweep pollution away.
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Frequently Asked Questions About Air Quality in Texas
Is air quality bad in South Congress Avenue right now?
On 6 October 2026, overall air quality in South Congress Avenue is moderate. AQI is the main air quality indicator at 44.3/100. Pollution peaks around 12:00 PM (PM10: 44.3/100).
Will air quality be worse tomorrow in South Congress Avenue?
On 7 October 2026, air quality conditions in South Congress Avenue will be worse than today, with AQI forecast at poor at 77.4/100. Pollution peaks around 10:00 AM (PM10: 77.4/100).
When is air pollution at its worst in South Congress Avenue?
Particle levels tend to be highest from December to February, when home heating and traffic add more emissions and cold, calm spells at around 10°C can leave a light winter haze over the city. From April to October, strong sunshine and temperatures around 31°C drive ozone formation, with levels peaking in the afternoon. Overall, breezy weather in April, with winds near 20 km/h, tends to sweep pollution away.
Are air quality levels in South Congress Avenue 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.
Understanding the Scale
The 0–100 air quality scores represent risk levels, not direct air pollutant concentrations. Higher scores indicate higher risk.
Air Quality
| Good | 0-20 | Low air quality risk. Air quality is expected to be good, with low levels of pollution. |
| Fair | 20-40 | Generally low air quality risk. Air quality is expected to be acceptable, with some pollution present. |
| Moderate | 40-60 | Moderate air quality risk. Air pollution is elevated and air quality may be less favorable. |
| Poor | 60-80 | High air quality risk. Air pollution is high and air quality is expected to be poor. |
| Very Poor | 80-100 | Very high air quality risk. Air pollution is very high and air quality is expected to be very poor. |