61°F  
  San Francisco, California | 06:04 AM
Air Quality (U.S.)

  Rise:  6:47AM | Set:  4:59PM
10hrs 12mins

  Rise:  12:33AM | Set:  1:53PM
Last Quarter


Rise: 6:47AM | Set:  4:59PM
10hrs 12mins


Rise:12:33AM | Set:1:53PM
Last Quarter

Air Quality Observations

Station Name Concentration Category
Woodland 38 ppb Good
Colfax 36 ppb Good
Air Quality Forecast

Date Pollutant Concentration Category
11 Nov Particulates smaller than 2.5 microns 52 ppb Moderate
12 Nov Particulates smaller than 2.5 microns 56 ppb Moderate
13 Nov Particulates smaller than 2.5 microns 44 ppb Good
14 Nov Particulates smaller than 2.5 microns n/a Good
15 Nov Particulates smaller than 2.5 microns n/a Good
16 Nov Particulates smaller than 2.5 microns n/a Good
17 Nov Particulates smaller than 2.5 microns n/a Moderate

Date Pollutant Concentration Category
11 Nov Particulates smaller than 2.5 microns 58 ppb Moderate
12 Nov Particulates smaller than 2.5 microns 56 ppb Moderate
13 Nov Particulates smaller than 2.5 microns 44 ppb Good
14 Nov Particulates smaller than 2.5 microns n/a Good
15 Nov Particulates smaller than 2.5 microns n/a Good
16 Nov Particulates smaller than 2.5 microns n/a Good
17 Nov Particulates smaller than 2.5 microns n/a Moderate

Date Pollutant Concentration Category
11 Nov Particulates smaller than 2.5 microns 59 ppb Moderate
12 Nov Particulates smaller than 2.5 microns 55 ppb Moderate
13 Nov Ozone 40 ppb Good
14 Nov Ozone n/a Good
15 Nov Particulates smaller than 2.5 microns n/a Good
16 Nov Particulates smaller than 2.5 microns n/a Good
17 Nov Particulates smaller than 2.5 microns n/a Good

Date Pollutant Concentration Category
11 Nov Particulates smaller than 2.5 microns 53 ppb Moderate
12 Nov Ozone 28 ppb Good
13 Nov Ozone 41 ppb Good
14 Nov Ozone n/a Good
15 Nov Particulates smaller than 2.5 microns n/a Good
16 Nov Particulates smaller than 2.5 microns n/a Good
17 Nov Particulates smaller than 2.5 microns n/a Good