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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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  • Data acquisition and wireless communication equipment installation

    A wall-mounted equipment setup featuring an Advantech ADAM data acquisition module, a wireless router/gateway device with dual antennas (labeled 'IONIC' or similar), and various coiled cables including Ethernet and sensor wiring. A shelf holds additional networking hardware and a roll of paper towel, with a solar or power inverter unit visible at lower left.
    TagsAir Quality Monitors, King County, North Sea-Tac Park, NSTP, PSCAA, Sunset ParkFolderPSCAA Sunset Park Site Tour
  • PSCAA Air Quality Monitor SeaTac

    A white instrumentation enclosure/shelter is mounted on a gravel pad outdoors, equipped with two mushroom-cap inlet sampling tubes on top (consistent with particulate matter or air quality monitors), a radiation shield/temperature sensor assembly, a black exhaust elbow, and associated cabling. The setting appears industrial, with graffiti-marked walls and a corrugated metal building visible in the background.
    TagsAir Quality Monitors, King County, North Sea-Tac Park, NSTP, PSCAA, Sunset ParkFolderNorth Sea-Tac Park AQM
  • PM10 detector

    A TSI Integrating Nephelometer (model visible on front panel label) is mounted on a wall inside what appears to be a small environmental monitoring shelter or trailer. The station includes associated gas cylinders, tubing, data acquisition hardware, and climate control equipment, consistent with an ambient air quality or visibility monitoring deployment.
    TagsAir Quality Monitors, King County, North Sea-Tac Park, NSTP, PSCAA, Sunset ParkFolderPSCAA Sunset Park Site Tour
  • Ecotech Air Quality Monitor with LG Wall AC Unit

    An Ecotech brand air quality monitoring instrument (serial number partially visible as 15-0730) is connected via yellow tubing to an LG through-the-wall air conditioning unit. The setup also includes a gray electrical enclosure with conduit and associated wiring, consistent with an environmental monitoring station installation.
    TagsAir Quality Monitors, King County, North Sea-Tac Park, NSTP, PSCAA, Sunset ParkFolderPSCAA Sunset Park Site Tour
  • Equipment room with ADAM data acquisition modules and electrical panel

    An interior equipment room showing an electrical sub-panel, Advantech ADAM-series I/O data acquisition modules mounted on a DIN rail shelf, network cabling (Ethernet and fiber), a wall-mounted thermostat reading 73°F, and a black enclosure that appears to be a UPS or power conditioner. The ADAM modules are commonly used in environmental monitoring and noise measurement systems.
    TagsAir Quality Monitors, King County, North Sea-Tac Park, NSTP, PSCAA, Sunset ParkFolderPSCAA Sunset Park Site Tour
  • Noise monitoring equipment station with Met One instrument and Dell laptop

    A compact monitoring station containing a white cylindrical inlet (likely a particle or noise sampler), a Met One Instruments analyzer unit, and a Dell laptop displaying a histogram or spectral data graph. The station is powered by a Tripp-Lite surge protector and connected via green tubing, suggesting an air quality or acoustic monitoring deployment.
    TagsAir Quality Monitors, King County, North Sea-Tac Park, NSTP, PSCAA, Sunset ParkFolderPSCAA Sunset Park Site Tour
  • Laser-based noise monitoring or measurement instrument, interior view

    The open enclosure reveals a reel-to-reel tape transport mechanism flanked by two spools of tape, a central rotating assembly bearing laser caution/danger warning labels, and pneumatic fittings. Warning labels read 'DANGER – MOVING PARTS – WATCH YOUR FINGERS' and standard laser caution markings, consistent with a precision scientific or acoustic measurement instrument.
    TagsAir Quality Monitors, King County, North Sea-Tac Park, NSTP, PSCAA, Sunset ParkFolderPSCAA Sunset Park Site Tour
  • Magee Scientific Aethalometer Model AE33-7 at Sea-Tac monitoring site

    A Magee Scientific Aethalometer Model AE33-7 (serial number AE33-S10-01520) is shown displaying real-time air quality data on April 11, 2025 at 12:24:45, including Black Carbon (BC) at -13 ng/m³, UVPM at -12 ng/m³, a reported EPA flow rate of 5.0 LPM, a 60-second timebase, and 228 tape advances remaining with a green status indicator.
    TagsAir Quality Monitors, King County, North Sea-Tac Park, NSTP, PSCAA, Sunset ParkFolderPSCAA Sunset Park Site Tour
  • Magee Scientific Aethalometer Model AE33-7 at Sea-Tac monitoring station

    A Magee Scientific Aethalometer Model AE33-7 (serial AE33-S10-01520) displays real-time air quality data on April 11, 2025 at 12:24:52, showing black carbon (BC) at -13 ng/m³, UVPM at -12 ng/m³, a reported EPA flow of 5.0 LPM, a 60-second timebase, and 228 tape advances remaining with a green status indicator.
    TagsAir Quality Monitors, King County, North Sea-Tac Park, NSTP, PSCAA, Sunset ParkFolderPSCAA Sunset Park Site Tour
  • Dell laptop running particle size analyzer software with Magee Scientific instrument

    A Dell laptop displays what appears to be a Scanning Mobility Particle Sizer (SMPS) or similar aerosol particle size distribution software showing a histogram of particle diameters in nanometers, alongside a terminal window. A Magee Scientific instrument (visible logo on rack below) is present, consistent with black carbon or aerosol monitoring equipment used in air quality measurement deployments.
    TagsAir Quality Monitors, King County, North Sea-Tac Park, NSTP, PSCAA, Sunset ParkFolderPSCAA Sunset Park Site Tour

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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...]


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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!

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.
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