45°F  
  San Francisco, California | 08:43 AM
Air Quality (U.S.)

  Rise:  7:24AM | Set:  5:11PM
9hrs 47mins

  Rise:  2:17AM | Set:  12:20PM
Waning crescent


Rise: 7:24AM | Set:  5:11PM
9hrs 47mins


Rise:2:17AM | Set:12:20PM
Waning crescent

Air Quality Observations

Station Name Concentration Category
Woodland 29 ppb Good
Colfax 36 ppb Good
Lassen Volcanic NP 47 ppb Good
Yosemite NP Turtleback Dome 42 ppb Good
Sparks 28 ppb Good
Air Quality Forecast

Date Pollutant Concentration Category
10 Jan Particulates smaller than 2.5 microns 52 ppb Moderate
11 Jan Particulates smaller than 2.5 microns 73 ppb Moderate
12 Jan Particulates smaller than 2.5 microns 75 ppb Moderate
13 Jan Particulates smaller than 2.5 microns n/a Moderate
14 Jan Particulates smaller than 2.5 microns n/a Moderate
15 Jan Particulates smaller than 2.5 microns n/a Moderate
16 Jan Particulates smaller than 2.5 microns n/a Moderate

Date Pollutant Concentration Category
10 Jan Particulates smaller than 2.5 microns 57 ppb Moderate
11 Jan Particulates smaller than 2.5 microns 73 ppb Moderate
12 Jan Particulates smaller than 2.5 microns 75 ppb Moderate
13 Jan Particulates smaller than 2.5 microns n/a Moderate
14 Jan Particulates smaller than 2.5 microns n/a Moderate
15 Jan Particulates smaller than 2.5 microns n/a Moderate
16 Jan Particulates smaller than 2.5 microns n/a Moderate

Date Pollutant Concentration Category
10 Jan Particulates smaller than 2.5 microns 39 ppb Good
11 Jan Particulates smaller than 2.5 microns 64 ppb Moderate
12 Jan Particulates smaller than 2.5 microns 68 ppb Moderate
13 Jan Particulates smaller than 2.5 microns n/a Moderate
14 Jan Particulates smaller than 2.5 microns n/a Moderate
15 Jan Particulates smaller than 2.5 microns n/a Moderate
16 Jan Particulates smaller than 2.5 microns n/a Moderate

Date Pollutant Concentration Category
10 Jan Particulates smaller than 2.5 microns 36 ppb Good
11 Jan Particulates smaller than 2.5 microns 60 ppb Moderate
12 Jan Particulates smaller than 2.5 microns 66 ppb Moderate
13 Jan Particulates smaller than 2.5 microns n/a Moderate
14 Jan Particulates smaller than 2.5 microns n/a Moderate
15 Jan Particulates smaller than 2.5 microns n/a Moderate
16 Jan Particulates smaller than 2.5 microns n/a Good