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AQI Hourly Report for: Placerville, California

Hourly Conditions for: Placerville
Air Quality Index (AQI)
Observed At Time: 8:00 PDT
 Current AQI: 28  
GOOD
Health Message: Good - Healthy Air


0-50 Good
51-100 Moderate
101-150 Unhealthy for Sensitive Groups
151-200 Unhealthy
201-300 Very Unhealthy
301-500 Hazardous
Over Night Data Past 9:00PM Isn't Available.
Today's High Forecast
Air Quality Index (AQI)
Issued At: 8:00 PDT
 Today's AQI High: 112  
Health Message: Members of sensitive groups may experience health effects. The general public is less likely to be affected.
  
Tomorrow's High Forecast
Air Quality Index (AQI)
Issued At: 8:00 PDT
 Tomorrow's AQI High: 90  
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.

AQI Forecast Discussion
Forecast Discussion: Monday, as an upper-level ridge of high pressure builds over the Sacramento region, warmer temperatures will increase ozone formation. In addition, onshore winds will weaken slightly, reducing mixing and dispersion. Therefore, ozone levels will be Unhealthy for Sensitive Groups. Tuesday, upper-level high pressure will continue to strengthen over the Sacramento region, reducing mixing and producing sunny skies and temperatures in the upper-90s to low-100s. These conditions will enhance the formation of ground-level ozone. However, light to moderate northwesterly to southwesterly winds will increase pollutant dispersion. As a result, ozone levels will remain Unhealthy for Sensitive Groups. Wednesday, the high pressure ridge will begin to weaken, enhancing atmospheric mixing. Furthermore, moderate onshore winds in the afternoon will disperse pollutants. Therefore, ozone levels will be Moderate.

Current Hourly Air Quality Index Map
AQI: Good AQI: Moderate AQI: Unhealthy for Sensitive Groups AQI: Unhealthy AQI: Very Unhealthy AQI: Hazardous

Today's Air Quality Forecast
AQI: Good AQI: Moderate AQI: Unhealthy for Sensitive Groups AQI: Unhealthy AQI: Very Unhealthy AQI: Hazardous

Today's Air Quality Timed Animation
AQI: Good AQI: Moderate AQI: Unhealthy for Sensitive Groups AQI: Unhealthy AQI: Very Unhealthy AQI: Hazardous

Today's U.S. AQI Combined PM & O3 Timed Animation
AQI: Good AQI: Moderate AQI: Unhealthy for Sensitive Groups AQI: Unhealthy AQI: Very Unhealthy AQI: Hazardous
United States 24 Hour Ozone Forecast




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