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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.

TagUltrafine Particulates(58)

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  • 2023-03-29

    Community health & airport operations noise & air pollution: The King County Health Study

    The King County Health Study is a publicly funded research effort that examines how SeaTac Airport operations affect the health of surrounding communities through noise and air pollution. The study analyzes existing health data within one, five, and ten miles of the airport, reviews scientific literature on airport-related health effects, and incorporates findings from a University of Washington study on ultrafine particulate matter. It concludes with recommendations for addressing health impacts linked to airport operations.
    TagsKing County, King County Public Health, Ramboll, Sea-Tac Airport, Ultrafine Particulates
  • 2023-02-10

    Ultrafine particle monitoring (Seattle and TBD) – Member Requested Local Community Project Information Form

    A 2023 Washington State legislative funding request of $412,000 seeks to establish two ultrafine particle air quality monitors near Sea-Tac Airport and the I-5/I-90 interchange in Seattle, operated by the Puget Sound Clean Air Agency. The project aims to measure tiny airborne particles — particularly those produced by aircraft and vehicle traffic — that are not currently tracked routinely in Washington State. The University of Washington would analyze the collected data to identify pollution sources and establish health-impact baselines, with monitoring expected to begin in spring 2024.
    CategoriesLegislation TagsAir Quality Monitors, PSCAA, Puget Sound Clean Air Agency, Tina Orwall, Ultrafine Particulates
  • UWDEOHS-particle deposition

    An educational infographic titled 'Particle Size & Lung Deposition' illustrating how airborne particles of different sizes deposit in various regions of the respiratory tract: particles >10 μm in the nose and throat, 2.5–10 μm in the windpipe and large airways, 0.1–2.5 μm in small airways, and <0.1 μm in small airways and alveolar sacs. The diagram includes an anatomical illustration of the human respiratory system with a magnified inset of alveolar sacs.
    TagsAir Quality Monitors, DEOHS, Health, Ultrafine Particulates, UWDEOHS
  • UWDEOHS-PM particle size

    An educational diagram comparing the sizes of airborne particulate matter categories: PM0.1 (ultrafine particles, 0.1 microns), PM2.5 (combustion particles, organic compounds, metals; <2.5 microns), and PM10 (dust, pollen, mold; <10 microns). These are shown relative to a human hair (50–70 microns in diameter) and fine beach sand (90 microns in diameter).
    TagsDEOHS, Health, PM25, Ultrafine Particulates, UWDEOHS
  • ultra-fine-particles

    Infographic comparing sizes of airborne particulate matter relative to a human hair (50 micrometres in diameter): ultrafine particles (<100 nanometers), fine particles (<2.5 micrometres), and coarse fine particles (<10 micrometres). The diagram uses scaled spheres to visually illustrate how these pollution particles relate in size to a strand of human hair.
    TagsAir Quality Monitors, Aviation Emissions, Health, Ultrafine Particulates
  • Effects of Ultrafine Particles

    Infographic from Daily News, illustrated by staff artist Warren Huskey, explaining how atmospheric ultrafine particles (diameter less than 0.1 micrometers) enter the human body and cause adverse health effects including possible brain cancer, heart attacks, and liver invasion. It details particle size comparisons (PM10, PM2.5, and ultrafines) relative to human hair thickness of 60 microns.
    TagsAviation Emissions, Health, PM25, UFP, 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
  • 2022-08-01

    Urban ultrafine – advisory group meeting, August 2022

    A University of Washington research team held an advisory group meeting in August 2022 to discuss ultrafine particle (UFP) pollution in urban areas near airports. The meeting covered topics including indoor air quality in schools affected by aircraft emissions, short-term health effects of UFPs, and plans for mobile air quality monitoring. The multidisciplinary team includes environmental health scientists, researchers, and public health experts examining how aviation-related pollution impacts surrounding communities.
    CategoriesMeetings TagsEdmund Seto, Elena Austin, indoor air quality, Ultrafine Particulates, University Of Washington
  • 2021-12-01

    MATES V draft report, chapter 5: Ultrafine particles and black carbon measurements

    This report chapter examines measurements of ultrafine particles (UFPs) — very tiny airborne particles smaller than 0.1 micrometers — and their potential health effects, including risks to neurological, respiratory, and cardiovascular health. UFPs make up roughly 90% of all airborne particles and are primarily produced by fuel combustion sources such as diesel engines, gasoline engines, and jet engines. People living near heavily trafficked roads, airports, refineries, and railyards may face elevated exposure to these particles.
    TagsAir Quality Monitors, California Air Resources Board, Environmental Health & Safety News, UFP, Ultrafine Particulates
  • Mates V Chapter 5 16April 1031Am Footnotes Version Pdf
    2021-12-01

    MATES V draft report, chapter 5: Ultrafine particles and black carbon measurements

    This report chapter examines measurements of ultrafine particles (UFPs) — very tiny airborne particles smaller than 0.1 micrometers — and their potential health effects, including risks to neurological, respiratory, and cardiovascular health. UFPs make up roughly 90% of all airborne particles and are primarily produced by fuel combustion sources such as diesel engines, gasoline engines, and jet engines. People living near heavily trafficked roads, airports, refineries, and railyards may face elevated exposure to these particles.
    TagsAir Quality Monitors, California Air Resources Board, Environmental Health & Safety News, UFP, Ultrafine Particulates

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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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