53°F  
  San Francisco, California | 4:46 PM
Air Quality (U.S.)

  Rise:  7:15AM | Set:  4:51PM
9hrs 36mins

  Rise:  12:27AM | Set:  12:40PM
Last Quarter


Rise: 7:15AM | Set:  4:51PM
9hrs 36mins


Rise:12:27AM | Set:12:40PM
Last Quarter

Air Quality Observations

Station Name Concentration Category
Colfax 33 ppb Good
Lassen Volcanic NP 41 ppb Good
Yosemite NP Turtleback Dome 41 ppb Good
Sparks 23 ppb Good
Air Quality Forecast

Date Pollutant Concentration Category
11 Dec Particulates smaller than 2.5 microns 61 ppb Moderate
12 Dec Particulates smaller than 2.5 microns 77 ppb Moderate
13 Dec Particulates smaller than 2.5 microns 71 ppb Moderate
14 Dec Particulates smaller than 2.5 microns n/a Moderate
15 Dec Particulates smaller than 2.5 microns n/a Moderate
16 Dec Particulates smaller than 2.5 microns n/a Moderate
17 Dec Particulates smaller than 2.5 microns n/a Moderate

Date Pollutant Concentration Category
11 Dec Particulates smaller than 2.5 microns 67 ppb Moderate
12 Dec Particulates smaller than 2.5 microns 77 ppb Moderate
13 Dec Particulates smaller than 2.5 microns 71 ppb Moderate
14 Dec Particulates smaller than 2.5 microns n/a Moderate
15 Dec Particulates smaller than 2.5 microns n/a Moderate
16 Dec Particulates smaller than 2.5 microns n/a Moderate
17 Dec Particulates smaller than 2.5 microns n/a Moderate

Date Pollutant Concentration Category
11 Dec Particulates smaller than 2.5 microns 54 ppb Moderate
12 Dec Particulates smaller than 2.5 microns 75 ppb Moderate
13 Dec Particulates smaller than 2.5 microns 69 ppb Moderate
14 Dec Particulates smaller than 2.5 microns n/a Moderate
15 Dec Particulates smaller than 2.5 microns n/a Moderate
16 Dec Particulates smaller than 2.5 microns n/a Moderate
17 Dec Particulates smaller than 2.5 microns n/a Moderate

Date Pollutant Concentration Category
11 Dec Particulates smaller than 2.5 microns 57 ppb Moderate
12 Dec Particulates smaller than 2.5 microns 71 ppb Moderate
13 Dec Particulates smaller than 2.5 microns 62 ppb Moderate
14 Dec Particulates smaller than 2.5 microns n/a Moderate
15 Dec Particulates smaller than 2.5 microns n/a Moderate
16 Dec Particulates smaller than 2.5 microns n/a Moderate
17 Dec Particulates smaller than 2.5 microns n/a Moderate