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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.

TagTimothy Larson(6)

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  • 2024-10-24

    Assessing exposures to source-specific air pollution through a multi-pollutant mobile monitoring campaign in Seattle, WA

    This presentation from the 2024 International Society of Exposure Science annual meeting describes a mobile air quality monitoring study conducted in Seattle, Washington, aimed at measuring exposure to pollutants from specific pollution sources. Researchers from the University of Washington used a multi-pollutant mobile monitoring campaign to assess how residents are exposed to various types of air pollution across different locations in the city. The study covers methods, results, and conclusions related to source-specific air pollution exposure assessment.
    TagsEdmund Seto, Elena Austin, Timothy Larson, University Of Washington
  • 2020-12-05

    The relationship between flight traffic, ultrafine particles and noise from the Seattle Aircraft Air and Noise Study

    Researchers from the University of Washington School of Public Health examined how aircraft flight traffic at Seattle-Tacoma International Airport relates to ultrafine particle pollution and noise levels in surrounding communities. The study highlights that neighborhoods such as Beacon Hill and other South King County areas already rank among the most environmentally burdened in Washington State, facing cumulative hazards including both air and noise pollution from aircraft. The findings are intended to inform policy discussions about the health impacts of airport operations on nearby, often disadvantaged, communities.
    TagsBeacon Hill, DEOHS, Edmund Seto, Elena Austin, Tim Gould, Timothy Larson, Ultrafine Particulates, University Of Washington
  • 2020-12-01

    Community health and airport operations related noise and air pollution: Report to the legislature in response to Washington State House Bill 1109

    This December 2020 report, prepared by Public Health Seattle & King County in response to Washington State House Bill 1109, examines how noise and air pollution from airport operations affect the health of communities near Sea-Tac Airport compared to the rest of King County. It reviews evidence on pollutants such as ultrafine particulates, their links to conditions like asthma, heart disease, and reduced life expectancy, and includes findings from a University of Washington study on air quality. The report concludes with recommendations for addressing these public health impacts.
    TagsEdmund Seto, HB 1109, Health, King County Public Health, Kris Johnson, Timothy LarsonStudy TopicsHealth
  • Federal Way Letter to UW on Ultrafine Particles Study

    CategoriesCorrespondence TagsDEOHS, Edmund Seto, Federal Way, MOV-UP, Susan Honda, Timothy Larson
  • 2019-01-23

    Highline Forum agenda: Ultra-Fine Particle Study Update, January 23, 2019

    The Highline Forum held its January 23, 2019 meeting at Burien City Hall, focusing on an update of the University of Washington's Ultra-Fine Particle Study presented by researchers from the UW School of Public Health. The agenda also included a StART program update from the Port of Seattle's Noise Program Manager, selection of a 2019 Community Co-Chair, and a City of Burien host update. The forum scheduled six bimonthly meetings throughout 2019, rotating among cities near Seattle-Tacoma International Airport including Federal Way, SeaTac, Tukwila, and Des Moines.
    TagsEdmund Seto, Highline Forum, StART, Timothy Larson, Ultrafine Particulates
  • 1999-05-20

    Sea-Tac Airport spatial nitrogen dioxide study final report

    A 1999 University of Washington study measured nitrogen dioxide (NO2) levels around Seattle-Tacoma International Airport to determine whether aircraft operations were harming local air quality. Researchers found that NO2 levels at all monitoring sites remained well below federal safety standards, and that regional conditions and nearby freeways — not aircraft — were the primary drivers of local pollution. The study concluded that airport operations had only a small, difficult-to-isolate effect on community NO2 levels, estimated at less than 7 parts per billion above background levels.
    TagsDoug Urry, Ecology, John Williamson, pollution, Timothy Larson, University Of Washington
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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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    "Declaration of Dr. Stephen L. M. Hockaday in support of respondent/cross-petitioner Airport Communities Coalition’s reply in support of its emergency motion for injunctive relief pursuant to RAP 8.3" — , 2022

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