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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.

Since 2016, we've worked to obtain justice for residents living under the flight path. Noise. Pollution. Health. Compensation..

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TagAir Quality Monitors(75)

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  • 2025-12-01 00:00

    2025 Report: Overburdened Communities Highly Impacted by Air Pollution

    A report by the Washington State Department of Ecology’s Air Quality Program examining overburdened communities that are highly impacted by air pollution. The document includes publication information, contact details for regional offices, and ADA accessibility information.
    TagsAir Quality Monitors, Environment, Environmental Impact Statement, PSCAA
  • 2025-10-03 00:00

    Urban Ultrafine Particles – Advisory Group Meeting

    Meeting agenda for University of Washington advisory group focused on urban ultrafine particles research. The 3-hour meeting covers partner updates, UW research highlights, policy landscape review, regional monitoring enhancements, and open forum discussion to address knowledge gaps from the MOV-UP study.
    CategoriesRegular Events TagsAcademic Journals, Air Quality Monitors, Airport, Atmospheric Science, Aviation Emissions
  • 2025-10-03 00:00

    Urban Ultrafine Particles – Advisory Group Meeting

    Advisory group meeting presentation focused on urban ultrafine particles, likely related to aviation emissions and air quality impacts on airport communities. The meeting appears to be part of ongoing research or policy discussions regarding particulate matter from aircraft operations.
    CategoriesKey Documents, Regular Events TagsAir Purifiers, Air Quality Monitors, Airport Communities Coalition, Atmospheric Science, Aviation Emissions
  • 2025-10-03 00:00

    Urban Ultrafine Particles Advisory Group Meeting

    Meeting minutes from the UFP Advisory Group discussing research priorities for ultrafine particle health effects, mitigation strategies, and exposure reduction in aviation-impacted communities. Participants included University of Washington researchers, public health officials, school district representatives, and community leaders focusing on air quality and health impacts near Sea-Tac Airport.
    CategoriesKey Documents, Regular Events TagsAir Purifiers, Air Quality Monitors, Airport Communities Coalition, Airport Impacted Communities Act, Aviation Emissions
  • 2025-10-03 00:00

    Urban Ultrafine Particles Advisory Group Meeting

    Meeting notes from the Urban Ultrafine Particles Advisory Group held on October 3, 2025, featuring hybrid attendance from representatives of various organizations including UW, public health departments, school districts, and community leaders. The document includes attendee lists and disclaimers about the summary notes.
    CategoriesKey Documents TagsAir Quality Monitors, Airport Committees, Airport Communities Coalition
  • 2025-10-01 00:00

    Impacts of Aviation Emissions on Air Quality Near Hanscom Field, Bedford, Massachusetts – Results of a Two-Season Monitoring Campaign

    A comprehensive study measuring ultrafine particles, lead, and other air pollutants from aviation emissions at Hanscom Field across four surrounding Massachusetts towns. The study found that UFP concentrations were up to two-fold higher at downwind sites and often exceeded WHO guidelines, with the highest impacts in Bedford and Lexington.
    TagsAcademic Journals, Air Quality Monitors, Airport, Aviation Emissions, MassPort, Neelakshi Hudda, StudyStudy TopicsAir Quality, Ultrafine Particles
  • 2025-09-16 13:02

    Air Quality Monitor Site Visit

    Progress towards the first aviation air quality network in the nation SeaTac: State and local officials from Puget Sound Clean Air Agency (PSCAA) and Des Moines gathered today with researchers from University of Washington Department of Occupation and Environmental Health Sciences (UWDEOHS) at Sunset Park to learn about the latest PSCAA Air monitoring site, and
    CategoriesNews Stories TagsAir Quality Monitors, City Of Des Moines, PSCAA, UWDEOHS
  • 2025-09-16 12:49

    Air Quality Monitoring Equipment Training Group Photo

    Group photo of approximately 20 people standing in front of a white mobile monitoring station with scientific equipment and antennas. The participants appear to be attending a training session or demonstration related to air quality monitoring technology at an outdoor location.
    CategoriesEvents TagsAir Quality Monitors, Airport Community Ecology Fund
  • 2025-09-15 00:42

    PSCAA Sunset Park Air Quality Monitor Tour Presentation

    TagsAir Quality Monitors, PSCAA, Ultrafine Particulates
  • 2025-09-15 00:00

    SMPS Particle Bin Counts and Geometric Mean at SeaTac North

    Scientific data chart showing particle size distribution measurements over time at SeaTac North location. The chart displays particle bin midpoints from 5-382 nm and geometric mean values using contour lines and color coding, with data points marked throughout the time period from 08:31 to 12:54 PST.
    TagsAir Quality Monitors, Airport, Atmospheric Science

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Upcoming Events

  • PSCAA Advisory Council Meeting Agenda
    Add to CalendarMWednesday Mar 11, 9:00am - 11:35am
    1904 3rd Avenue, Suite 105, Seattle, WA 98101
    Call to order – Roll Call – Quorum Established – Land Acknowledgement We would like to acknowledge that our Agency operates in four present-day counties, which are the traditional lands of the Coast Salish people, past and present. This acknowledgement does not take the place of authentic relationships with indigenous communities in our jurisdiction and [...]

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Help study childhood asthma. Get free HEPA filter!

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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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