45°F  
  San Francisco, California | 11:56 PM
Air Quality (U.S.)

  Rise:  7:17AM | Set:  4:51PM
9hrs 34mins

  Rise:  2:26AM | Set:  1:25PM
Waning crescent


Rise: 7:17AM | Set:  4:51PM
9hrs 34mins


Rise:2:26AM | Set:1:25PM
Waning crescent

Air Quality Observations

Station Name Concentration Category
Colfax 31 ppb Good
Lassen Volcanic NP 39 ppb Good
Yosemite NP Turtleback Dome 43 ppb Good
Sparks 27 ppb Good
Air Quality Forecast

Date Pollutant Concentration Category
13 Dec Particulates smaller than 2.5 microns 53 ppb Moderate
14 Dec Particulates smaller than 2.5 microns 73 ppb Moderate
15 Dec Particulates smaller than 2.5 microns 73 ppb Moderate
16 Dec Particulates smaller than 2.5 microns n/a Moderate
17 Dec Particulates smaller than 2.5 microns n/a Moderate
18 Dec Particulates smaller than 2.5 microns n/a Moderate
19 Dec Particulates smaller than 2.5 microns n/a Moderate

Date Pollutant Concentration Category
13 Dec Particulates smaller than 2.5 microns 57 ppb Moderate
14 Dec Particulates smaller than 2.5 microns 73 ppb Moderate
15 Dec Particulates smaller than 2.5 microns 73 ppb Moderate
16 Dec Particulates smaller than 2.5 microns n/a Moderate
17 Dec Particulates smaller than 2.5 microns n/a Moderate
18 Dec Particulates smaller than 2.5 microns n/a Moderate
19 Dec Particulates smaller than 2.5 microns n/a Moderate

Date Pollutant Concentration Category
13 Dec Particulates smaller than 2.5 microns 37 ppb Good
14 Dec Particulates smaller than 2.5 microns 69 ppb Moderate
15 Dec Particulates smaller than 2.5 microns 71 ppb Moderate
16 Dec Particulates smaller than 2.5 microns n/a Moderate
17 Dec Particulates smaller than 2.5 microns n/a Moderate
18 Dec Particulates smaller than 2.5 microns n/a Moderate
19 Dec Particulates smaller than 2.5 microns n/a Moderate

Date Pollutant Concentration Category
13 Dec Particulates smaller than 2.5 microns 52 ppb Moderate
14 Dec Particulates smaller than 2.5 microns 62 ppb Moderate
15 Dec Particulates smaller than 2.5 microns 66 ppb Moderate
16 Dec Particulates smaller than 2.5 microns n/a Moderate
17 Dec Particulates smaller than 2.5 microns n/a Moderate
18 Dec Particulates smaller than 2.5 microns n/a Moderate
19 Dec Particulates smaller than 2.5 microns n/a Moderate