46°F  
  San Francisco, California | 04:39 AM
Air Quality (U.S.)

  Rise:  7:23AM | Set:  5:16PM
9hrs 53mins

  Rise:  6:57AM | Set:  4:13PM
Waning crescent


Rise: 7:23AM | Set:  5:16PM
9hrs 53mins


Rise:6:57AM | Set:4:13PM
Waning crescent

Air Quality Observations

Station Name Concentration Category
Sloughhouse 33 ppb Good
Woodland 27 ppb Good
Colfax 36 ppb Good
Lassen Volcanic NP 49 ppb Good
Yosemite NP Turtleback Dome 46 ppb Good
Sparks 23 ppb Good
Air Quality Forecast

Date Pollutant Concentration Category
15 Jan Particulates smaller than 2.5 microns 77 ppb Moderate
16 Jan Particulates smaller than 2.5 microns 88 ppb Moderate
17 Jan Particulates smaller than 2.5 microns 84 ppb Moderate
18 Jan Particulates smaller than 2.5 microns n/a Moderate
19 Jan Particulates smaller than 2.5 microns n/a Moderate
20 Jan Particulates smaller than 2.5 microns n/a Moderate
21 Jan Particulates smaller than 2.5 microns n/a Moderate

Date Pollutant Concentration Category
15 Jan Particulates smaller than 2.5 microns 85 ppb Moderate
16 Jan Particulates smaller than 2.5 microns 88 ppb Moderate
17 Jan Particulates smaller than 2.5 microns 84 ppb Moderate
18 Jan Particulates smaller than 2.5 microns n/a Moderate
19 Jan Particulates smaller than 2.5 microns n/a Moderate
20 Jan Particulates smaller than 2.5 microns n/a Moderate
21 Jan Particulates smaller than 2.5 microns n/a Moderate

Date Pollutant Concentration Category
15 Jan Particulates smaller than 2.5 microns 64 ppb Moderate
16 Jan Particulates smaller than 2.5 microns 84 ppb Moderate
17 Jan Particulates smaller than 2.5 microns 81 ppb Moderate
18 Jan Particulates smaller than 2.5 microns n/a Moderate
19 Jan Particulates smaller than 2.5 microns n/a Moderate
20 Jan Particulates smaller than 2.5 microns n/a Moderate
21 Jan Particulates smaller than 2.5 microns n/a Moderate

Date Pollutant Concentration Category
15 Jan Particulates smaller than 2.5 microns 55 ppb Moderate
16 Jan Particulates smaller than 2.5 microns 75 ppb Moderate
17 Jan Particulates smaller than 2.5 microns 75 ppb Moderate
18 Jan Particulates smaller than 2.5 microns n/a Moderate
19 Jan Particulates smaller than 2.5 microns n/a Moderate
20 Jan Particulates smaller than 2.5 microns n/a Moderate
21 Jan Particulates smaller than 2.5 microns n/a Moderate