Colfax, CA Air Quality | Current Conditions | NWS Alerts | Maps | Buoy Reports

Reporting Station : Grass Valley, CA

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0 Weather Alerts for your area.

79°F

Sunny. Warm.

Current Time : 4:29 PM PDT

Nearest / Estimated

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Rise 5:49AM

Set 8:11PM

First Quarter

Rise1:48PM

Set2:42AM

THURSDAY AFTERNOON

SMF / No delays

Air Quality Observations

Air Quality Forecast

Colfax

Date	Pollutant	Concentration	Category
14 May	Particulates smaller than 2.5 microns	30 ppb	Good
15 May	Particulates smaller than 2.5 microns	11 ppb	Good
16 May	Ozone	87 ppb	Moderate
17 May	Ozone	80 ppb	Moderate
18 May	Ozone	67 ppb	Moderate
19 May	Ozone	64 ppb	Moderate
20 May	Ozone	58 ppb	Moderate

Western Nevada County

Date	Pollutant	Concentration	Category
14 May	Particulates smaller than 2.5 microns	33 ppb	Good
15 May	Particulates smaller than 2.5 microns	39 ppb	Good
16 May	Particulates smaller than 2.5 microns	n/a	Good
17 May	Particulates smaller than 2.5 microns	n/a	Good
18 May	Particulates smaller than 2.5 microns	n/a	Good
19 May	Particulates smaller than 2.5 microns	n/a	Good
20 May	Particulates smaller than 2.5 microns	n/a	Good

Cool

Date	Pollutant	Concentration	Category
14 May	Ozone	67 ppb	Moderate
15 May	Ozone	51 ppb	Moderate
16 May	Ozone	84 ppb	Moderate
17 May	Ozone	77 ppb	Moderate
18 May	Ozone	64 ppb	Moderate
19 May	Ozone	61 ppb	Moderate
20 May	Ozone	54 ppb	Moderate

Auburn

Date	Pollutant	Concentration	Category
14 May	Particulates smaller than 2.5 microns	47 ppb	Good
15 May	Particulates smaller than 2.5 microns	53 ppb	Moderate
16 May	Ozone	87 ppb	Moderate
17 May	Ozone	80 ppb	Moderate
18 May	Ozone	67 ppb	Moderate
19 May	Ozone	64 ppb	Moderate
20 May	Ozone	58 ppb	Moderate