Lincoln PM2.5 Air Quality Data is Currently Unavailable The Air District in coordination with the City of Lincoln is in the process of relocating the Lincoln PM2.5 air quality monitoring site. Because of this, the monitor is currently down at the existing site. Staff understands the impacts that this may cause and is working hard to temporarily restore operation as quickly as possible until a new monitoring site for Lincoln is located. In the interim, please consider using the Auburn and Roseville PM2.5 monitoring sites, listed on the Spare the Air website for air quality information. The District thanks you for your patience.