All information relevant to air quality data and the air monitoring network in the Northern Sierra Air Quality Management District can be found by going to the most recent Annual Report page.
Ambient Air Quality Standards, State & National .pdf
For additional information on area designations within California visit the California Air Resources Board website.
If you are interested in some of the temperature and rainfall data collected by the Northern Sierra AQMD, then visit our weather page.
Photo Gallery of Air Monitoring Sites within the NSAQMD (not yet functional)
Grass Valley: PM2.5 sampler, Ozone Monitor, Beta Attenuation Monitor, Weather Station, The view from our deck
Truckee: PM2.5 samplers, Ozone Monitor & Beta Attenuation Monitor, Weather Station, The view from our Truckee Air Monitoring Site
Loyalton: PM10 High Volume Sampler, Weather Station
Portola: PM2.5 sampler, Beta Attenuation Sampler, SASS
Quincy: PM2.5 sampler, PM10 High Volume Sampler, Beta Attenuation Sampler, Ozone Monitor, Weather Station & Monitoring Shed
Chester: Beta Attenuation Monitor, Weather Station
To View the Air Monitoring Network Plan click here. If you have any comments on this plan you may email them to the
or post them to the Air District at P.O. Box 2509, Grass Valley, CA 95945 Please submit your comments no later than November 30, 2007.