The Puget Sound Clean Air Agency (PSCAA) is the regulatory authority responsible for enforcing the Washington Clean Air Act in King, Kitsap, Pierce, and Snohomish Counties—including the City of Kenmore. PSCAA monitors air quality at numerous sites across the region. The closest monitoring station to Kenmore is located in Lake Forest Park - readings there may differ from Kenmore’s immediate air.

These sites continuously measure fine particulate matter (PM2.5)—particles that are 2.5 micrometers or smaller in diameter, which can pose health risks when inhaled. The Environmental Protection Agency (EPA) sets health-based limits for PM2.5 concentrations, and PSCAA uses these standards to generate Air Quality Index (AQI) maps. You can view these maps on PSCAA’s Air Quality Sensor Map.

In addition to official monitoring, commercial sensors are also used to measure PM2.5. For example, PurpleAir produces widely used sensors that community members in our region can install and optionally share data from via the PSCAA sensor map.

Microsoft also conducted a pilot study in 2020, deploying prototype compact air quality sensors in coordination with the City of Kenmore. These sensors measured:

• Temperature
• Humidity
• PM1
• PM2.5
• PM10

The project ran through 2020 and concluded in 2021. By allowing Microsoft to use City rights-of-way, they provided any collected data to the City of Kenmore, which is available to the public. The data is provided "as is" and is not guaranteed to be accurate or error-free. The City is not liable for any damages resulting from its use.  You can download the datasets here:

• February through June 2020
• October through December 2020

For information related to air quality concerns from burning (such as outdoor fires or wood stoves), please visit the City’s Code Compliance page.

The City of Kenmore has a cooperative agreement with PSCAA for handling odor complaints. There are two ways to file an odor complaint:

During business hours:

• Submit a Report a Concern Online, or
• Call City Hall at (425) 398-8900 to speak with a trained staff member.

After business hours:

• Visit the PSCAA website to file a complaint online.

When submitting a complaint, be prepared to:

1. Provide a non-anonymous statement when an inspector arrives.
2. Include:
   • What was witnessed
   • The location
   • How the odor unreasonably interfered with your use or enjoyment of your property
3. After the statement is taken, an investigation will be conducted to identify the source.

PSCAA is responsible for enforcement actions and penalties, if warranted.