48°F  
  San Francisco, California | 04:44 AM
Air Quality (U.S.)

  Rise:  7:22AM | Set:  5:20PM
9hrs 58mins

  Rise:  8:41AM | Set:  7:29PM
New moon


Rise: 7:22AM | Set:  5:20PM
9hrs 58mins


Rise:8:41AM | Set:7:29PM
New moon

Air Quality Observations

Station Name Concentration Category
Woodland 14 ppb Good
Colfax 34 ppb Good
Lassen Volcanic NP 41 ppb Good
Sparks 24 ppb Good
Air Quality Forecast

Date Pollutant Concentration Category
18 Jan Particulates smaller than 2.5 microns 68 ppb Moderate
19 Jan Particulates smaller than 2.5 microns 75 ppb Moderate
20 Jan Particulates smaller than 2.5 microns 69 ppb Moderate
21 Jan Particulates smaller than 2.5 microns n/a Moderate
22 Jan Particulates smaller than 2.5 microns n/a Moderate
23 Jan Particulates smaller than 2.5 microns n/a Moderate
24 Jan Particulates smaller than 2.5 microns n/a Moderate

Date Pollutant Concentration Category
18 Jan Particulates smaller than 2.5 microns 80 ppb Moderate
19 Jan Particulates smaller than 2.5 microns 75 ppb Moderate
20 Jan Particulates smaller than 2.5 microns 69 ppb Moderate
21 Jan Particulates smaller than 2.5 microns n/a Moderate
22 Jan Particulates smaller than 2.5 microns n/a Moderate
23 Jan Particulates smaller than 2.5 microns n/a Moderate
24 Jan Particulates smaller than 2.5 microns n/a Moderate

Date Pollutant Concentration Category
18 Jan Particulates smaller than 2.5 microns 58 ppb Moderate
19 Jan Particulates smaller than 2.5 microns 73 ppb Moderate
20 Jan Particulates smaller than 2.5 microns 60 ppb Moderate
21 Jan Particulates smaller than 2.5 microns n/a Moderate
22 Jan Particulates smaller than 2.5 microns n/a Good
23 Jan Particulates smaller than 2.5 microns n/a Good
24 Jan Particulates smaller than 2.5 microns n/a Good

Date Pollutant Concentration Category
18 Jan Particulates smaller than 2.5 microns 58 ppb Moderate
19 Jan Particulates smaller than 2.5 microns 60 ppb Moderate
20 Jan Particulates smaller than 2.5 microns 55 ppb Moderate
21 Jan Particulates smaller than 2.5 microns n/a Moderate
22 Jan Particulates smaller than 2.5 microns n/a Good
23 Jan Particulates smaller than 2.5 microns n/a Good
24 Jan Particulates smaller than 2.5 microns n/a Good