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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.

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  • 2025-10-26

    Heathrow T5 Airport Terminal Building with Aircraft at Gates

    Image shows a modern airport terminal building with a curved glass facade and multiple aircraft parked at gates. Several commercial airliners are visible on the tarmac with ground support equipment and vehicles. The terminal appears to be a major hub facility with multiple levels and extensive gate infrastructure.
    Tagsaircraft, Airline Industry, Airport, Airports
  • 2025-10-25

    Aerial View of Coleman Young (Wayne County) Airport Runway and Terminal Facility

    Aerial photograph showing an airport runway, terminal building, and surrounding residential neighborhood. The image displays aviation infrastructure including the main runway, terminal facilities, and nearby housing developments with green spaces.
    TagsAirport, Terminal
  • 2025-10-22

    StART SEA Stakeholder Advisory Round Table Meeting Agenda – October 22, 2025

    Agenda for StART meeting covering FAA’s Record of Decision for Sustainable Airport Master Plan Near-Term Projects, Part 150 Noise Study updates, and various working group activities. The meeting includes presentations on airport sustainability projects, noise programs, and policy working group updates.
    CategoriesMeetings, Regular Events TagsAirport, Airport Committees, Airport Development Fund, Airport Expansion, Airport Noise Report, Port Of Seattle
  • 2025-10-03

    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.
    CategoriesMeetings, Regular Events TagsAcademic Journals, Air Quality Monitors, Airport, Atmospheric Science, Aviation Emissions
  • 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, Airport, Aviation Emissions, MassPort, Neelakshi Hudda, StudyStudy TopicsAir Quality, Ultrafine Particles
  • 2025-09-15

    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
  • 2025-09-15

    SMPS Particle Bin Counts and Geometric Mean at 10th&Weller

    A scientific chart showing SMPS (Scanning Mobility Particle Sizer) particle bin count measurements and geometric mean data collected at the 10th & Weller monitoring location over a 24-hour period. The contour plot displays particle size distribution data from 5nm to 382nm, with logarithmic color scaling showing particle concentrations from September 15, 2025.
    CategoriesResources TagsAir Quality Monitors, Airport, Aviation Emissions
  • 2025-08-16

    Aircraft Flying Over Seattle Metropolitan Area

    Aerial view showing commercial aircraft flying over the Seattle metropolitan area with Mount Rainier visible in the background. The image depicts multiple aircraft including what appears to be commercial jets flying over the city’s urban landscape and waterways.
    Tagsaircraft, Airline Industry, Airport, Aviation Emissions
  • 2025-08-08

    Stone LLP | Complete List of FAA Grant Assurances

    Complete List Of FAA Grant Assurances Complied by the Airport & Aviation Attorneys at STONE LLP Grant Assurances Applicable To Airports and Airport Sponsors As of the writing of this webpage, the FAA mandates a total of 39 grant assurances and these apply to each airport’s performance of its grant agreement with the federal government
    CategoriesFrom The Web TagsAirport, FAA, Stone LLP
  • 2025-06-07

    Security Checkpoint 1 at SEA Airport

    Interior view of Security Checkpoint 1 at Seattle-Tacoma International Airport showing the checkpoint area with information displays, workers in high-visibility vests, and the modern terminal architecture with glass ceiling and aircraft display overhead.
    TagsAirport, Airports

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Upcoming Events

  • Joint Des Moines and Burien Airport Committee Meeting
    Add to CalendarMMonday Jul 13: 4:00pm
    21630 11th Avenue S, Suite C,
    July 13 2026 joint des moines and burien airport committee meeting agenda packet pdf

    Agenda Item: 2026 Aviation Noise & Emissions Symposium Summary Document Link

    [...]
  • Rep. Adam Smith Aviation Forum
    Add to CalendarMSaturday Jul 18, 1:00pm - 2:00pm
    2400 S. 240th St,
    Event image 1

    From the Office of Congressman Adam Smith: Highline College (Building 8, Mt. Townsend Room)Des Moines, WA Saturday, July 18 • 1 PM – 2 PM Join Rep. Adam Smith for an Aviation Forum. Attendees will have questions and concerns about aviation noise and emissions. RSVP today! Representative Adam Smith is hosting an aviation forum with

    [...]

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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!

A report examining the barriers to implementing sustainable aviation fuel (SAF) in Massachusetts, authored by Neil Rasmussen and Chuck Collins from the Institute for Policy Studies. The report analyzes challenges and obstacles facing SAF adoption in the state.
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