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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.

TagAviation Emissions(88)

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  • 2026-09-29

    Impacts of Aviation Emissions on Near-Airport Residential Air Quality: Supporting Information

    Supporting information document for the academic study “Impacts of aviation emissions on near-airport residential air quality” by Neelakshi Hudda, Liam W. Durant, Scott A. Fruin, and John L. Durant (Tufts University, USC Keck School of Medicine). Contains detailed methods including preferred runway configurations (Northwest and Northeast flow operating configurations), maps of traffic volume estimates around
    TagsAcademic Journals, Aviation Emissions, Boston/Logan Airport, Neelakshi Hudda, Ultrafine ParticlesFolderHealth
  • 2026-09-29

    Aviation Emissions Impact Ambient Ultrafine Particle Concentrations in the Greater Boston Area

    Supporting information for an academic study by Hudda, Simon, Zamore, Brugge, and Durant (Tufts University) on aviation emissions and ultrafine particle (UFP) concentrations in the greater Boston area, published in Environmental Science & Technology. Document includes diurnal flight activity patterns at Logan International Airport (2014 hourly average LTO data), runway-specific arrival and departure statistics by
    TagsAcademic Journals, Aviation Emissions, Boston/Logan Airport, Tufts University, Ultrafine ParticlesFolderBoston/Logan
  • Sw sep 26
    2026-09-01

    Emissions Forecast: Traffic Growth Outpaces Fleet Renewal Improvements

    IBA ‘Sustainability Watch’ presentation from September 2026 forecasting aviation emissions trends, finding that air traffic growth outpaces efficiency gains from fleet renewal. Published by IBA (‘insights in flight’), the report addresses sustainable aviation, greenhouse gas emissions, and the gap between aircraft fleet modernization improvements and rising passenger demand driving total emissions higher.
    TagsAirline Industry, Aviation Emissions, Forecast, Sustainable AviationFolderGreenwashing
  • July 13 2026 joint des moines and burien airport committee meeting agenda packet pdf
    2026-07-13

    Joint Des Moines and Burien Airport Committee Meeting

    Agenda Item: 2026 Aviation Noise & Emissions Symposium Summary Document Link
    CategoriesEvents TagsAirport Committees, Aviation Emissions, Aviation Noise & Emissions Symposium, Burien Airport Committee, Des Moines
  • 2026-07-13

    Joint Des Moines and Burien Airport Committee meeting

    Agenda for the Joint Des Moines and Burien Airport Committee meeting scheduled for July 13, 2026, at 4:00 PM in the City Council Chambers in Des Moines, Washington. The single agenda item is a summary of the 2026 Aviation Noise & Emissions Symposium. The meeting follows standard order of business including call to order, roll
    TagsAirport Committees, Aviation Emissions, Aviation Noise & Emissions Symposium, Burien Airport Committee, Des MoinesFolder2026
  • Cd9464C39116769B1F1C213A3A63Bc935C5B889E

    D.C. Circuit Court of Appeals Cracks Down on FAA Compliance with NEPA

    A legal article categorized under 'Aviation & Airport' reports that the D.C. Circuit Court of Appeals cracked down on FAA compliance with NEPA (National Environmental Policy Act). The publication appears to be from a legal news outlet with a red 'IL' or 'JL' logo.
    CategoriesLitigation, News Stories TagsAirport Expansion, Airport Law, Airport Noise Law, ANCA, Aviation Committees, Aviation EmissionsFolderFAA
  • 2025-10-29

    SAF Pathway Comparison Chart

    A structured comparison table outlining four Sustainable Aviation Fuel (SAF) production pathways: HEFA-SPK, FT-SPK, Alcohol-to-Jet (ATJ), and Power-to-Liquid (PtL)/e-fuels, detailing their feedstocks, emissions reduction potential, scalability, and notes. No specific organizational authorship or date is visible in the image.
    CategoriesExplainers TagsAlternative Fuels, Aviation Emissions, Aviation FuelFolderSAF
  • 2025-10-03

    Urban Ultrafine Particles – Advisory Group Meeting

    The University of Washington held an Advisory Group Meeting on October 3, 2025, focused on urban ultrafine particles (nano-particles) and their sources, including aviation-related emissions near areas like Sea-Tac Airport. The meeting aimed to foster dialogue, address knowledge gaps from the MOV-UP study, identify priority research questions, and guide scientific research on air quality monitoring. Advisors were asked to provide feedback on study design and methodology, with a time commitment including annual meetings and optional review of study outputs.
    CategoriesMeetings, Regular Events TagsAcademic Journals, Air Quality Monitors, Atmospheric Science, Aviation EmissionsFolderUWDEOHS
  • 2025-10-03

    UFP-Advisory-Group-Meeting-2025.10

    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.
    CategoriesMeetings, Regular Events TagsAir Purifiers, Air Quality Monitors, Airport Communities Coalition, Airport Impacted Communities Act, Aviation EmissionsFolderUWDEOHS
  • 2025-10-01

    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, Aviation Emissions, MassPort, Neelakshi Hudda, StudiesFolderBoston/LoganStudy TopicsAir Quality, Ultrafine Particles

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Upcoming Events

  • Part 150 NCP Workshop — Burien
    Add to CalendarMSaturday Oct 17: 10:00am

    Attend a Port of Seattle open house on the Part 150 Study Noise Compatibility Program (NCP). The Part 150 program determines the noise boundary around the airport and opportunities for noise mitigation such as sound insulation.

    [...]
  • Part 150 NCP Workshop — SeaTac
    Add to CalendarMMonday Oct 19: 6:00pm

    Attend a Port of Seattle open house on the Part 150 Study Noise Compatibility Program (NCP). The Part 150 program determines the noise boundary around the airport and opportunities for noise mitigation such as sound insulation.

    [...]
  • Part 150 NCP Workshop — Des Moines
    Add to CalendarMTuesday Oct 20: 6:00pm

    Attend a Port of Seattle open house on the Part 150 Study Noise Compatibility Program (NCP). The Part 150 program determines the noise boundary around the airport and opportunities for noise mitigation such as sound insulation.

    [...]

[See all...]


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...

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