57°F  
  San Francisco, California | 2:47 PM
Air Quality (U.S.)

  Rise:  7:22AM | Set:  5:17PM
9hrs 55mins

  Rise:  7:38AM | Set:  5:17PM
New moon


Rise: 7:22AM | Set:  5:17PM
9hrs 55mins


Rise:7:38AM | Set:5:17PM
New moon

Air Quality Observations

Station Name Concentration Category
Woodland 19 ppb Good
Colfax 38 ppb Good
Lassen Volcanic NP 45 ppb Good
Yosemite NP Turtleback Dome 45 ppb Good
Sparks 28 ppb Good
Air Quality Forecast

Date Pollutant Concentration Category
16 Jan Particulates smaller than 2.5 microns 61 ppb Moderate
17 Jan Particulates smaller than 2.5 microns 84 ppb Moderate
18 Jan Particulates smaller than 2.5 microns 82 ppb 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
22 Jan Particulates smaller than 2.5 microns n/a Moderate

Date Pollutant Concentration Category
16 Jan Particulates smaller than 2.5 microns 68 ppb Moderate
17 Jan Particulates smaller than 2.5 microns 84 ppb Moderate
18 Jan Particulates smaller than 2.5 microns 82 ppb 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
22 Jan Particulates smaller than 2.5 microns n/a Moderate

Date Pollutant Concentration Category
16 Jan Particulates smaller than 2.5 microns 47 ppb Good
17 Jan Particulates smaller than 2.5 microns 81 ppb Moderate
18 Jan Particulates smaller than 2.5 microns 79 ppb 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
22 Jan Particulates smaller than 2.5 microns n/a Good

Date Pollutant Concentration Category
16 Jan Particulates smaller than 2.5 microns 47 ppb Good
17 Jan Particulates smaller than 2.5 microns 75 ppb Moderate
18 Jan Particulates smaller than 2.5 microns 75 ppb 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
22 Jan Particulates smaller than 2.5 microns n/a Good