Air Quality Monitoring
Measuring the ambient air is done using a network of monitoring stations located throughout Spokane County. We monitor for the criteria air pollutants that are most prevalent in Spokane's airshed, which includes ozone, fine particles (PM2.5) and coarse particles (PM10). Ozone is only monitored during ozone season (May - September).
Monitoring air quality and weather patterns enables us to:
- Forecast daily air quality conditions and significant events
- Report current air quality in our communities
- Issue burn bans on indoor wood heating and outdoor burning
- Help people use data to make clean air choices
Monitoring Data and Air Quality Monitoring Stations
- Current Air Quality webpage provides near real time reports, updated hourly, and map of monitoring locations and data
- Monthly summaries of air quality data by year
- Annual summaries of daily air quality (Air Quality Index), 5-year history
Below is a list of current air monitoring stations in Spokane County. Select a station to get more information.
- Augusta Avenue & Fiske Street, measures fine (PM2.5) and coarse (PM10) particles
- Broadway Avenue near University, measures PM2.5
- Colbert, measures PM2.5
- Greenbluff, Ecology operated site, measures ozone (O3) during ozone season (May-Sept)
- Monroe Street & Wellesley Avenue, Ecology-operated site, measures PM2.5
- Turnbull National Wildlife Refuge, measures O3 (May-Sept) and PM10
Personal Air Sensors for Citizen Scientists, Researchers and Developers
Air sensors are lower-cost, portable devices that can estimate a variety of pollutants including: dust, fine particulate matter, carbon dioxide, carbon monoxide, ozone, nitrogen oxide, and many others. These sensors are available to anyone and typically cost between $100 and $2,500 – a fraction of the cost of our regulatory air monitors.
Although air sensors are less expensive than a regulatory air monitor, they are also less accurate. The instruments that federal, state and local air quality agencies use to measure air pollutants are built, tested, sited, operated and maintained according to rigorous air monitoring regulations set by the Environmental Protection Agency (EPA). They provide high-quality data.
Air sensors can be very useful and may help answer questions about air quality, such as:
- How does the air quality during my commute compare to my air quality at home?
- How does air quality near my home compare to other neighborhoods and areas?
- Is air quality in my neighborhood better during the summer or winter? Day or night?
The U.S. EPA has a website that provides information for citizen scientists and others on how to select and use low-cost, portable air sensor technology and understand results from monitoring activities. The information can help the public learn more about air quality in their communities.