The Campanile (Sather Tower), Berkeley Air Quality Forecast - Today, Tomorrow
Air Quality Today
Today (10 October): Air quality in The Campanile (Sather Tower) is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 4:00 AM (O3: 27.4/100).
Air Quality Tomorrow
Tomorrow (11 October 2026): Air quality in The Campanile (Sather Tower) is fair. PM2.5 increases to fair; all other pollutants stay as today. Pollution peaks around 4:00 AM (O3: 30.0/100).
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Air Quality
Today - 10 October
| Pollutant | Level | Value |
|---|---|---|
| AQI | Fair | 27.4/100 |
| PM2.5 (fine particles) | Good | 18.3/100 |
| PM10 (coarse particles) | Good | 11.2/100 |
| NO2 (nitrogen dioxide) | Good | 4.1/100 |
| O3 (ozone) | Fair | 27.4/100 |
| SO2 (sulfur dioxide) | Good | 1.0/100 |
| CO (carbon monoxide) | Good | 0.5/100 |
| HCHO (formaldehyde) | Good | 4.6/100 |
| PM1 (ultrafine particles) | Good | 7.3/100 |
Tomorrow - 11 October
| Pollutant | Level | Value |
|---|---|---|
| AQI | Fair | 30.0/100 |
| PM2.5 (fine particles) | Fair | 27.9/100 |
| PM10 (coarse particles) | Good | 19.6/100 |
| NO2 (nitrogen dioxide) | Good | 7.2/100 |
| O3 (ozone) | Fair | 30.0/100 |
| SO2 (sulfur dioxide) | Good | 1.2/100 |
| CO (carbon monoxide) | Good | 0.5/100 |
| HCHO (formaldehyde) | Good | 4.9/100 |
| PM1 (ultrafine particles) | Good | 10.5/100 |
Local Environmental Conditions
Around this site in Berkeley, 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.
Ozone rises a little on sunny days from June to October, but the mild summers, around 18°C, keep it in check. In the mildest months, December to February, calmer nights at around 10°C allow traffic pollution to build up near the ground. Wildfire season runs roughly from June to September, when smoke from fires, near or far, can bring hazy days and very poor air quality.
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Frequently Asked Questions About Air Quality in California
Is air quality bad in The Campanile (Sather Tower) right now?
On 10 October 2026, overall air quality in The Campanile (Sather Tower) is fair. AQI is the main air quality indicator at 27.4/100. Pollution peaks around 4:00 AM (O3: 27.4/100).
Will air quality be worse tomorrow in The Campanile (Sather Tower)?
On 11 October 2026, air quality conditions in The Campanile (Sather Tower) will be similar to today, with AQI forecast at fair at 30.0/100. Pollution peaks around 4:00 AM (O3: 30.0/100).
When is air pollution at its worst in The Campanile (Sather Tower)?
Ozone rises a little on sunny days from June to October, but the mild summers, around 18°C, keep it in check. In the mildest months, December to February, calmer nights at around 10°C allow traffic pollution to build up near the ground. Wildfire season runs roughly from June to September, when smoke from fires, near or far, can bring hazy days and very poor air quality.
Are air quality levels in The Campanile (Sather Tower) 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. |