Mount Diablo State Park Summit Museum, Blackhawk Air Quality Forecast - Today, Tomorrow
Air Quality Today
Today (6 October): Air quality in Mount Diablo State Park Summit Museum is moderate. AQI and PM10 are moderate; PM2.5 and O3 are fair; NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 10:00 AM (PM10: 42.3/100).
Air Quality Tomorrow
Tomorrow (7 October 2026): Air quality in Mount Diablo State Park Summit Museum is moderate. PM2.5 increases to moderate; NO2 increases to fair; all other pollutants stay as today. Pollution peaks around 10:00 AM (PM2.5: 42.5/100).
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Air Quality
Today - 6 October
| Pollen species | Level | Value |
|---|---|---|
| AQI | Moderate | 42.3/100 |
| PM2.5 (fine particles) | Fair | 37.7/100 |
| PM10 (coarse particles) | Moderate | 42.3/100 |
| NO2 (nitrogen dioxide) | Good | 6.5/100 |
| O3 (ozone) | Fair | 34.6/100 |
| SO2 (sulfur dioxide) | Good | 1.2/100 |
| CO (carbon monoxide) | Good | 0.4/100 |
| HCHO (formaldehyde) | Good | 4.1/100 |
| PM1 (ultrafine particles) | Good | 8.4/100 |
Tomorrow - 7 October
| Pollen species | Level | Value |
|---|---|---|
| AQI | Moderate | 42.5/100 |
| PM2.5 (fine particles) | Moderate | 42.5/100 |
| PM10 (coarse particles) | Moderate | 42.0/100 |
| NO2 (nitrogen dioxide) | Fair | 23.3/100 |
| O3 (ozone) | Fair | 31.2/100 |
| SO2 (sulfur dioxide) | Good | 1.5/100 |
| CO (carbon monoxide) | Good | 0.4/100 |
| HCHO (formaldehyde) | Good | 2.9/100 |
| PM1 (ultrafine particles) | Good | 11.8/100 |
Local Environmental Conditions
Around this part of Blackhawk, traffic is light and there are few concentrated sources of air pollution. The open grass and scrubland around the area can add dust in dry weather and smoke from occasional fires. Trees nearby help filter some particles from the air, though in hot weather they also emit compounds that feed ozone formation. On some days, pollution drifting in from farther away outweighs local sources.
Particle levels tend to be highest from December to February, when wood burning and traffic add more emissions and cold, calm spells at around 9°C slow their dispersal. From July to September, strong sunshine and temperatures around 21°C drive ozone formation, with levels peaking in the afternoon. Wildfire smoke is most likely from May to September, sometimes turning the sky hazy for days.
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Frequently Asked Questions About Air Quality in California
Is air quality bad in Mount Diablo State Park Summit Museum right now?
On 6 October 2026, overall air quality in Mount Diablo State Park Summit Museum is moderate. AQI is the main air quality indicator at 42.3/100. Pollution peaks around 10:00 AM (PM10: 42.3/100).
Will air quality be worse tomorrow in Mount Diablo State Park Summit Museum?
On 7 October 2026, air quality conditions in Mount Diablo State Park Summit Museum will be similar to today, with AQI forecast at moderate at 42.5/100. Pollution peaks around 10:00 AM (PM2.5: 42.5/100).
When is air pollution at its worst in Mount Diablo State Park Summit Museum?
Particle levels tend to be highest from December to February, when wood burning and traffic add more emissions and cold, calm spells at around 9°C slow their dispersal. From July to September, strong sunshine and temperatures around 21°C drive ozone formation, with levels peaking in the afternoon. Wildfire smoke is most likely from May to September, sometimes turning the sky hazy for days.
Are air quality levels in Mount Diablo State Park Summit Museum 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. |