Parker House, Orange, California Air Quality Forecast - Today, Tomorrow
Air Quality Today
Today (10 October): Air quality in Parker House is fair. AQI, PM10, and O3 are fair; PM2.5, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 4:00 AM (PM10: 22.3/100).
Air Quality Tomorrow
Tomorrow (11 October 2026): Air quality in Parker House is moderate. AQI worsens to moderate; PM2.5 increases to fair; PM10 increases to moderate; O3 decreases to good; all other pollutants stay as today. Pollution peaks around 7:00 AM (PM10: 40.6/100).
Explore Forecasts
Get More in Our App
Local pollen and air quality forecasts, interactive pollen maps and route profiles
Features and forecast availability vary by region.
Air Quality
Today - 10 October
| Pollutant | Level | Value |
|---|---|---|
| AQI | Fair | 22.3/100 |
| PM2.5 (fine particles) | Good | 13.3/100 |
| PM10 (coarse particles) | Fair | 22.3/100 |
| NO2 (nitrogen dioxide) | Good | 3.5/100 |
| O3 (ozone) | Fair | 21.0/100 |
| SO2 (sulfur dioxide) | Good | 0.5/100 |
| CO (carbon monoxide) | Good | 0.4/100 |
| HCHO (formaldehyde) | Good | 1.4/100 |
| PM1 (ultrafine particles) | Good | 1.4/100 |
Tomorrow - 11 October
| Pollutant | Level | Value |
|---|---|---|
| AQI | Moderate | 40.6/100 |
| PM2.5 (fine particles) | Fair | 28.7/100 |
| PM10 (coarse particles) | Moderate | 40.6/100 |
| NO2 (nitrogen dioxide) | Good | 6.4/100 |
| O3 (ozone) | Good | 17.0/100 |
| SO2 (sulfur dioxide) | Good | 0.7/100 |
| CO (carbon monoxide) | Good | 0.4/100 |
| HCHO (formaldehyde) | Good | 1.3/100 |
| PM1 (ultrafine particles) | Good | 3.2/100 |
Local Environmental Conditions
Around this part of Orange, California, dense development means road traffic is the main local source of nitrogen dioxide and fine particles. On some days, pollution drifting in from farther away outweighs local sources. Exhaust from nearby roads is usually highest close to busy streets and junctions. Smaller sources, such as construction, lawn equipment and barbecues, add to the mix.
Warm, sunny weather from June to September, around 25°C at its peak, raises afternoon ozone levels. In contrast, air near roads is often at its worst from January to March, when nights cool to around 12°C and the air turns still. Day to day, calm and dry conditions let pollution build, while wind and rain clear it away.
Get pollen & AQ on Strava
Follow your environmental exposure and performance with the free Airmine-Strava integration. See your pollen and air quality exposure for every Strava activity.
Frequently Asked Questions About Air Quality in California
Is air quality bad in Parker House right now?
On 10 October 2026, overall air quality in Parker House is fair. AQI is the main air quality indicator at 22.3/100. Pollution peaks around 4:00 AM (PM10: 22.3/100).
Will air quality be worse tomorrow in Parker House?
On 11 October 2026, air quality conditions in Parker House will be worse than today, with AQI forecast at moderate at 40.6/100. Pollution peaks around 7:00 AM (PM10: 40.6/100).
When is air pollution at its worst in Parker House?
Warm, sunny weather from June to September, around 25°C at its peak, raises afternoon ozone levels. In contrast, air near roads is often at its worst from January to March, when nights cool to around 12°C and the air turns still. Day to day, calm and dry conditions let pollution build, while wind and rain clear it away.
Are air quality levels in Parker House 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. |