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STNI
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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.

TagPuget Sound Clean Air Agency(9)

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  • PSCAA Air Quality Monitor Site Sunset Park 2024-02-05

    Sunset Park King County DNRP service yard. TSI Scanning Mobility Particle Sizer, which will collect routine ultrafine particle counts in many size bins. Also hourly black carbon and total fine particle concentrations at this site. Google Maps
    TagsAir Quality Monitors, North Sea-Tac Park, PSCAA, Puget Sound Clean Air Agency
  • Ultrafine particle monitoring (Seattle/Chinatown and Sea-Tac Airport) HDC2 11 12 42

    Community Projects are a recent innovation in the State Legislature. Essentially, House members sponsor their own grants which are funded as capital projects. In this case, $340,000 is being allocated for two ultrafine particle monitors to be handed off to Puget Sound Clean Air Agency (PSCAA). One will be in Chinatown, at the confluence of
    CategoriesLegislation TagsAir Quality Monitors, PSCAA, Puget Sound Clean Air Agency, Tina Orwall, Ultrafine Particulates
  • 2022-08-13

    *Where’s my Clair Patterson?

    There is this form of air pollution, which you probably have not heard of, called ultrafine particulates (UFPs). Though they are invisible, they seem to have some particularly nasty effects on human health. UFPs have not been well-studied, they are unregulated, and yet they are prevalent in commercial jet engine emissions. But this is not
    CategoriesChange The Culture, History TagsAvGas, Clair Patterson, Environment, EPA, Lead, movie, PSCAA, Puget Sound Clean Air Agency, Ultrafine Particulates
  • The Sea-Tac Airport Annual Air Quality Monitoring Proposal (STAAQM)

    This post describes a proposal we have put forward to Washington State legislators Senator Karen Keiser (33rd) and Representative Jesse Johnson (30th). In one sentence, we want an annual report of all key aviation-related emissions for every neighborhood affected by the operations from Sea-Tac Airport. We refer to this proposal as Sea-Tac Airport Annual Air
    CategoriesChange The Culture, Legislation TagsAir Quality Monitors, DEOHS, Jesse Johnson, Karen Keiser, MOV-UP, Policy, PSCAA, Puget Sound Clean Air Agency, STAAQM, Suggested Legislation, UW
  • A letter to Tina Orwall: Air Quality Monitor Proposal

    Hi Rep. Orwall, Thank you for your time on the phone today. BACKGROUND As I said, I have a lot of experience as a consultant with the environmental monitoring and mitigation process of conventional businesses (ie. where NEPA is governed by EPA.) It has always been annoying to me that the airport (being governed by
    CategoriesLegislation TagsAir Quality Monitors, pollution, Puget Sound Clean Air Agency
  • Puget Sound Clean Air Advisory Council

    Our Advisory Council provides guidance and input on agency programs and regulations. The Advisory Council is made up of representatives of large and small businesses, suburban cities, area sources, education, transportation, health, tribal nations, fire chiefs, environmental justice, local ports, the environmental community, and the Public-at-Large. Meetings Agendas & Minutes Advisory Council Members Advisory council
    CategoriesOrganizations TagsPSCleanAir, Puget Sound Clean Air Agency, SCA, Sound Cities Association
  • Puget Sound Air Toxics Evaluation Final Report, October 2003

    The Puget Sound Clean Air Agency conducted this screening study to identify chemicals and emission sources that pose the greatest potential health risks to citizens in the Puget Sound region. We also hope to better characterize the potential health risks to our three million residents from a group of air contaminants referred to as air
    TagsEcology, pollution, PSCAA, PSCleanAir, Puget Sound Clean Air Agency
  • Addressing Community Health Concerns Around Sea-Tac Airport 2000

    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?” Prepared by Washington State Department of Health Washington State Department of Ecology Puget Sound Clean Air Agency In consultation with Public Health – Seattle & King County Sea-Tac Airport
    TagsEcology, EPA, John Williamson, King County Public Health, PSCleanAir, Puget Sound Clean Air Agency, University Of Washington, Washington State Department Of Health, Washington State University
  • Memorandum Of Agreement Air Quality Monitoring 1996

    TagsEcology, EIS, Environmental Impact Statement, Environmental Protection Agency, EPA, Mic Dinsmore, Port Of Seattle, PSCAA, Puget Sound Clean Air Agency, Third Runway
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Upcoming Events

  • Port of Seattle Commission Meeting – Resolution No. 3848
    Add to CalendarMTuesday Apr 28: 12:00am
    Port of Seattle

    Agenda Item 10b Resolution No. 3848: Port of Seattle Participation in City of Bellevue Tax Increment Area Approval of the Port’s participation in the city of Bellevue’s tax increment area, as authorized under RCW 39.114.020. Key Points: Authorization for City of Bellevue to enact increment area up to $500,000,000 in combined assessed valuation if connected

    [...]
  • Port of Seattle Regular Commission Meeting April 28, 2026
    Add to CalendarMTuesday Apr 28: 12:00pm
    17801 International Blvd, Seattle, WA 98158
    2026 04 28 RM Packet Pdf 1

    # New Business Items
    **Order No. 2026-04:** Directs Executive Director to explore a program facilitating secure area access for union business requirements at Seattle-Tacoma International Airport.

    **Resolution No. 3848:** Approves Port's participation in City of Bellevue's Tax Increment Area.

    **Fishermen's Terminal C-15 Building Improvements:** Authorization for Executive Director to approve funding to advertise and execute a major public works construction contract for project completion.

    [...]
  • StART (SEA Stakeholder Advisory Round Table) Meeting
    Add to CalendarMWednesday Apr 29, 5:00pm - 7:00pm
    Zoom Webinar
    Start Meetingagenda 2026429 Pdf 1

    - **SAMP Environmental Review**: Detailed comparison between SEPA Environmental Impact Statement and NEPA Environmental Assessment processes for Near-Term Projects
    - **Community Roundtable Updates**: Progress report on airport stakeholder engagement initiatives
    - **Next Steps**: Implementation timeline for environmental review findings

    **Notable Action Item:**
    Public comment period opened for stakeholder input on airport development plans.

    [...]

[See all...]


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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.
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Read This!

This is the first study to combine a one-year mobile monitoring campaign with PMF (Positive Matrix Factorization) analysis to simultaneously estimate source-specific air pollution exposures and emission factors of different vehicle types. This methodology can be extended to other metropolitan areas.
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