Skip to content
  • STNI
  • Statistics
    • Ops and Passengers
      • King County International Airport (Boeing Field) Annual Operations
    • Financials
    • Aviation fuel uplift in the State of Washington 2018 – 2025
      • Aviation Fuel Tax Revenue in the State of Washington 1983-2025
      • Aviation Fuel Uplift at Sea-Tac Airport
    • Air Quality Monitoring
    • Flight Tracking
      • Flow and Flight Tracks
      • Five Year Comparison
      • Busiest Hours and Days
    • SEL Noise Reports & Graphs
      • About The Permanent Noise Monitors
      • Minutes of Quiet by Noise Monitor
      • Noise Events mapped
      • Noise Events (SEL)
    • Runways
    • Employees
    • Real Estate
      • Port Properties and Trees mapped
    • Parking
  • Events
  • Protest
    • Regular Events
    • Legislation 2026
    • Complain about a particular flight
    • Advocacy Organizations
    • Media Outlets
    • People
    • The Port of Seattle
      • Commission Meetings
      • Public Records Requests
      • StART
      • Highline Forum
    • Contact Your Electeds
  • Resources
    • FAQs
      • FAA Occurrences/Accidents/Indents
    • The SAMP
      • SAMP Public Comment Template
        • Two versions of Appendix K: NEPA/SEPA 2018 vs 2023
      • SAMP NTP: 31 projects by the numbers
      • SEPA Draft EIS (2026)
      • SAMP Record of Decision/FONSI (2025)
      • SAMP Draft EA (October 2024)
      • 2018 Scoping
    • Port Packages
      • Port Package Property Costs
      • Port Packages mapped
      • The Port Package Explainer
      • So you want a (first-time) Port Package? Start here
      • Port Package Looker Upper
      • How do I determine if I have a Port Package or Avigation Easement?
      • Progress on Port Package Update legislation
      • Having a Port Package Problem?
      • Port Package Site Visit Follow-Up
    • Document Library
    • Explainers
      • The Airport Law Cheat Sheet
      • The Grant Explainer
    • External Articles
    • History
      • Timeline
      • The Sea-Tac Communities Plan
        • Sea-Tac Communities Plan – Planning Maps
      • PSRC Third Runway Decision Process
    • Studies
    • Videos
  • Stories
  • Mission
  • Subscribe
  • Contact
Scroll down to content

Get InformedStay Informedx

I understand that you will never share my information with anyone, you will only use it to keep me updated on relevant events and that I may unsubscribe at any time.

STNI

STNISea-Tac Noise.Info

  • Solve for Sea-Tac. Solve for every airport.
  • Since 2016, working to obtain justice for everyone living under the flight path.
  • Less Noise. Cleaner Air. Better Public Health. Compensation.
  • Everything you think you know about the airport is wrong.

TagPSCAA(80)

Puget Sound Clean Air Agency

Air QualityData

Air Quality Sensor Map

UFP Monitoring Station updates

Advanced Search Options

  • Dates
  • Media
    • External Articles
    • Images
    • PDFs
    • Video
    • Audio
  • Order By
  • 2017-09-08

    Puget Sound Clean Air Agency: Agency Organization Chart

    This document is an organizational chart for the Puget Sound Clean Air Agency, dated September 2017, showing the agency's internal structure under Executive Director Craig Kenworthy. It outlines divisions including Compliance, Air Quality Programs, Legal/General Counsel, and support functions such as Human Resources, Finance, and Communications, along with the managers and staff assigned to each area. While the agency oversees regional air quality, this chart does not specifically address Sea-Tac Airport noise policy.
    TagsPSCAAFolderPSCAA
  • 2015-07-01

    Highway Air Toxics Impacts in the Chinatown-International District of Seattle

    This document describes a 2015–2018 air quality research project by the Puget Sound Clean Air Agency focused on measuring highway-related air toxics near Interstate 5 in Seattle's Chinatown-International District and Yesler Terrace neighborhoods. The study aimed to assess cancer risks from pollutants such as benzene, formaldehyde, and diesel particulate matter in communities identified as among the most environmentally and economically vulnerable in Washington State. While not directly related to Sea-Tac Airport noise policy, the project represents regional efforts to address transportation-related environmental health impacts on minority and low-income communities in the greater Puget Sound area.
    TagsAir Quality Monitors, Environmental Justice, PSCAAFolder10th and Weller AQM
  • 2004-04-01

    Air quality: Focus on Puget Sound

    This April 2004 report by the League of Women Voters examines air quality in the Puget Sound region, tracing the history of air pollution regulation from King Edward I's coal ban in 1305 through the creation of the U.S. Environmental Protection Agency in 1970. It focuses on the role of the Puget Sound Clean Air Agency in monitoring and reducing local air pollutants, with particular attention to small particles and diesel emissions. The report provides background on federal clean air legislation and outlines the League's related policy positions.
    TagsClean Air Act, Environmental Protection Agency, League of Women Voters, PSCAAFolderEnvironment
  • 2003-10-01

    Final report: Puget Sound air toxics evaluation

    This 2003 report by the Puget Sound Clean Air Agency evaluates air toxic chemicals in the Puget Sound region, assessing potential cancer and non-cancer health risks based on air monitoring data and EPA modeling. It identifies priority chemicals of concern, estimates human exposure levels, and draws conclusions about the health impacts of pollutants such as diesel exhaust and woodsmoke on local residents.
    TagsEcology, pollution, PSCAAFolderHealth
  • 2001-03-21

    EXH AR031728: Port Of Seattle Letter to Ecology Transmitting Synthetic Minor Permit and PSCAA Order for Sea-Tac Airport Air Emissions

    Letter dated March 21, 2001 from Maggie Corbin, Sr. Environmental Program Manager, Port Of Seattle Seattle-Tacoma International Airport, to Ann Kenny at the Washington Department of Ecology Northwest Regional Office, transmitting a synthetic minor permit. Background: Puget Sound Clean Air Agency (PSCAA) issued Order dated September 21, 1999 (Construction No. 7777, Registration No. 21408) limiting
    TagsACC, Ecology, Pollution Control Hearings Board, Port Of Seattle, PSCAA, Sea-Tac AirportFolderBox 12
  • 2001-03-21

    EXH 445: Letter to Ecology Transmitting Synthetic Minor Permit and PSCAA Order No. 7777 STIA Air Emissions

    In September 1999, the Puget Sound Clean Air Agency issued an order limiting facility-wide air emissions of sulfur dioxide, nitrogen oxides, and carbon monoxide at Seattle-Tacoma International Airport to less than 99 tons each per any 12-month period. The Port of Seattle is required to monitor fuel usage, calculate monthly emissions using specified factors, and maintain rolling records for at least five years. A March 2001 letter from the Port's Environmental Program Manager confirms emissions were well within limits, with nitrogen oxides typically running 15–17 tons and both carbon monoxide and sulfur dioxide at 10 tons or less over the previous 12-month period.
    TagsACC, Ecology, Pollution Control Hearings Board, Port Of Seattle, PSCAA, Sea-Tac AirportFolderBox 09
  • 2001-03-20

    EXH 444: Email Ann Kenny (Ecology) to Elizabeth Leavitt Requesting CZM Documentation

    In this March 20, 2001 email, Ann E. Kenny, a Senior Permitting Specialist at the Washington Department of Ecology, contacts Elizabeth Leavitt while working on a three-month Coastal Zone Management (CZM) status letter. Kenny requests copies of two key documents: a shoreline exemption letter issued by the City of Auburn on 8/9/00, and air quality compliance documentation including a Governor's Certification from 6/30/97 and a PSCAA permit from 9/21/99.
    TagsACC, City of Auburn, Ecology, Elizabeth Leavitt, Pollution Control Hearings Board, PSCAA, Third RunwayFolderBox 09
  • 2000-03-01

    Addressing community health concerns around SeaTac Airport: Response to the question, ‘Is it possible to monitor jet engine exhaust emissions or to model their path using data on prevailing winds and takeoff patterns?’

    This March 2000 report, prepared by Washington State health and environmental agencies, addresses community health concerns about air quality around Seattle-Tacoma (Sea-Tac) Airport by examining whether jet engine exhaust emissions can be monitored or modeled using wind and takeoff data. It outlines recommendations for conducting a comprehensive air quality study, including monitoring methods, data analysis approaches, and estimated costs, while also considering health impacts and environmental justice issues for nearby residents. The report was developed in consultation with public health officials, community representatives, the EPA, and local universities.
    TagsEnvironmental Justice, PSCAA, Sea-Tac Airport, Washington State Department Of HealthFolderStudies
  • 2000-03-01

    Addressing community health concerns around SeaTac Airport: Response to the question, ‘Is it possible to monitor jet engine exhaust emissions or to model their path using data on prevailing winds and takeoff patterns?’

    This March 2000 report, prepared by Washington State health and environmental agencies, examines whether jet engine exhaust emissions from Seattle-Tacoma International Airport can be monitored or modeled using wind and takeoff data. It reviews previous air quality studies, outlines health and environmental justice concerns for nearby communities, and recommends a structured air quality monitoring study with specific methods, data analysis approaches, and estimated costs. The report was developed in consultation with community representatives, the EPA, and local universities.
    TagsEcology, EPA, John Williamson, King County Public Health, PSCAA, University Of Washington, Washington State Department Of Health, Washington State UniversityFolderHealth
  • 1996-10-01

    Memorandum of Agreement: Air Quality Monitoring Program Activities Relating to the Seattle-Tacoma International Airport Vicinity

    This 1996 Memorandum of Agreement establishes a 24-month air quality monitoring program near Seattle-Tacoma International Airport, involving the Port of Seattle, FAA, EPA, Washington State Department of Ecology, and the Puget Sound Air Pollution Control Agency. The program, funded at $195,000, focuses on measuring carbon monoxide, nitrogen oxides, and aircraft fuel particle residue to establish baseline air quality data and evaluate potential pollution impacts from planned airport expansion projects. The Port agreed not to proceed with expansion elements projected to cause carbon monoxide standard violations until monitoring is complete and, if necessary, mitigation measures are identified.
    TagsEcology, EIS, Environmental Impact Statement, Environmental Protection Agency, EPA, FAA, Mic Dinsmore, Port Of Seattle, PSAPCA, PSCAA, Sea-Tac Airport Master Plan, Third RunwayFolderThird Runway

Posts pagination

Page 1 … Page 6 Page 7 Page 8
Sidebar On/Off

Upcoming Events

  • Stay Grounded Event: Night trains, not night planes!
    Add to CalendarMSunday Sep 13: 12:00am
    Ntnnp social media3

    For the past two years, more than 220 initiatives from 15 countries have declared September 13th as the International day for the ban of night flights at airports. In parallel, activists across Europe have been gathering for pyjama parties for night trains – coordinated in 2024 and 2025 by Back on Track and Stay Grounded.

    [...]
  • Burien Airport Committee Meeting September 15, 2026
    Add to CalendarMTuesday Sep 15: 6:00pm
    400 SW 152nd St, Burien, WA 98166
    Burien airport committee 15 sep 2026 agenda pdf pdf

    a) Part 150 Noise Study (Emily Inlow-Hood) — 15 minutes
    b) SAMP Update and Next Steps (Brian Davis and Sarah Moore) — 15 minutes
    c) Legislative Updates — 10 minutes
       • SCA (Sarah Moore)
       • Work with Sen. Orwall (Brian Davis)
    d) StART Reorganization (Jeff Harbaugh and Karen Veloria) — 10 minutes

    [...]

[See all...]


Help study childhood asthma. Get free HEPA filter!

read more...

Issues

Sea-Tac Airport is currently undergoing the largest and longest expansion in its history, collectively known as the Sustainable Airport Master Plan (SAMP). Some of it you can already hear, but you’re probably not aware of what it all means. Here’s what you need to know.
read more...

Read This!

As the source for federal transportation grants, the Puget Sound Regional Council was charged with developing a system to meet the growing need for commercial aviation. When the search for a second airport failed, they authorized the Port of Seattle to build the Third Runway, with a mandate to develop a noise abatement and mitigation program. In their effort to stop the Third Runway, the ACC argued over every detail of the Port's efforts--including property buyouts and sound insulation. The dispute was meant to be settled by a three member Expert Arbitration Panel. This is their final report. It finds 2-1, that the Port's program was insufficient in several respects. Despite that, funding for the Third Runway was approved by the PSRC, and the 'Port Package' program, proceeded largely unchanged. Expert Arbitration Panel's final decision finding that the Port of Seattle had not shown sufficient reduction in real on-the-ground noise impacts to satisfy noise reduction conditions required for approval of a third runway at Sea-Tac International Airport. The majority decision concluded the Port's noise abatement programs were insufficient despite being impressive in scope.
continue...

The Podcast!

Subscribe to the only podcast devoted to policies, politics, history, impacts for people living under the flight path everywhere. It’s definitely not just about noise!
  • Sea-Tac Noise.Info
  • Connect with STNI

    • Subscribe
    • Port Package Problem?
    • Donate
    • Podcast
    • Socials
      • Facebook
      • X (Twitter)
      • Bluesky
      • Instagram

    "Airport Litigation Documents: Expert Arbitration Panel Correspondence and Records, 1988–1996" — , 1988

  • Learn

    • Frequently Asked Questions
    • Explainers
    • Youtube
    • Research Requests
    • Make a complaint
  • Goals

    Fulfill the promises of 1976:
    • Compensation
    • Reduced noise
    • Improved air quality
    • Environmental remediation
Login/Register
©2026•Data Privacy

Message

We use cookies to provide basic functionality. We also provide access to search engines in order to provide site analytics. We do not sell or share your data.
V V