• 2017-11-15

    Final Highline Forum agenda: Air quality

    The Highline Forum meeting, hosted by the City of Tukwila on November 15, 2017, focused on air quality concerns related to Sea-Tac Airport, featuring a briefing from University of Washington researchers on an ultrafine particles study and a discussion of related federal legislation (HR 4087). The agenda also included updates from the City of Tukwila and the Sea-Tac Stakeholder Advisory Roundtable, presented by Port of Seattle Aviation Managing Director Lance Lyttle. The two-hour session concluded with a discussion of emerging issues and planning for the 2018 Highline Forum schedule.
  • 2017-11-15

    Ultrafine particles near airports

    Researchers from the University of Washington School of Public Health were commissioned by Washington State to study ultrafine particle air pollution near Sea-Tac Airport, the busiest international airport in the state. The study, presented in November 2017, required measuring ultrafine particulate matter within ten miles of the airport along flight paths, distinguishing aircraft emissions from other pollution sources, and comparing affected areas to unaffected ones. Findings and recommendations on whether to proceed with a second phase of research were due to the state legislature by December 1, 2019.
  • 2017-09-27

    Regional air quality briefing: Highline Forum

    A September 2017 regional air quality briefing presented by the Puget Sound Clean Air Agency to the Highline Forum covers air pollution sources, trends in south King County, and efforts to improve air quality in the region. The presentation also introduces an upcoming University of Washington study on ultrafine particle pollution, which is particularly relevant to communities near high-traffic corridors. The agency's vision emphasizes clean and healthy air for all residents regardless of socioeconomic status or location, covering four counties: King, Pierce, Snohomish, and Kitsap.
  • 2017-09-27

    Final Highline Forum agenda – Air Quality

    The Highline Forum held its September 27, 2017 meeting at the Des Moines Beach Park Dining Hall, focusing on the theme of air quality in communities surrounding Seattle-Tacoma International Airport. The agenda featured presentations from Port of Seattle Aviation Managing Director Lance Lyttle on airport community engagement, and a regional air quality briefing from the Puget Sound Clean Air Agency. The forum also included an update from the City of Des Moines, finalization of operating procedures, and discussion of topics for the next scheduled meeting.
  • 2017-09-27

    Regional air quality briefing: Highline Forum, September 27, 2017

    A September 2017 draft briefing prepared by the Puget Sound Clean Air Agency covers regional air quality conditions for the Highline Forum, focusing on south King County. Topics include which air pollutants pose the greatest health risks, where those pollutants come from, how air quality in the south King County area compares to other parts of the region, and an upcoming University of Washington study on ultrafine particle pollution. The agency's jurisdiction spans King, Pierce, Snohomish, and Kitsap counties, with a mission to protect public health and improve neighborhood air quality.
  • 2017-07-26

    Final Highline Forum agenda: SR 509 Project & Sea-Tac Air Quality Initiatives

    The Highline Forum held on July 26, 2017, at SeaTac City Hall brought together community stakeholders, city officials, and representatives from WSDOT and the Port of Seattle to discuss key regional topics including the SR 509 Puget Sound Gateway Program, aircraft altitude concerns, and air quality initiatives near Sea-Tac Airport. Presentations were delivered by Port of Seattle staff covering noise programs and environmental initiatives, alongside updates on SeaTac's economic development. The meeting provided a public forum for emerging issues and planning for future discussions on airport-related impacts to surrounding communities.
  • 2017-07-26

    Air Quality Initiatives at Sea-Tac Airport

    This July 2017 presentation by Port of Seattle Sustainability Manager Leslie Stanton outlines air quality initiatives at Seattle-Tacoma International Airport, covering the types and sources of air pollution, the Port's environmental goals, and efforts to reduce emissions. It highlights that while the Port has limited regulatory authority, it is pursuing innovative programs with multiple benefits and tracking emerging science around ultrafine particulates and particulate matter reductions tied to climate strategies. The document serves as an overview of Sea-Tac's approach to managing and improving local air quality amid growing aviation activity.
  • 2017-07-26

    Air quality initiatives at Sea-Tac Airport

    This 2017 presentation by Port of Seattle Sustainability Manager Leslie Stanton outlines air quality initiatives at Seattle-Tacoma International Airport, covering pollution sources, reduction programs, and the Port's environmental goals. It highlights that while the Port has limited regulatory authority, it is pursuing innovative strategies to cut emissions, including efforts around ultrafine particulates and climate-related particulate matter reductions. The presentation also reviews existing air quality studies and identifies next steps for improving air quality in and around Sea-Tac Airport.
  • 2017-07-26

    Puget Sound Gateway Program SR 509 Completion Project: Highline Forum presentation

    A July 2017 presentation by the Washington State Department of Transportation outlines the Puget Sound Gateway Program's SR 509 Completion Project, which aims to build new freeway connections linking the region's major ports and Seattle-Tacoma International Airport to surrounding communities and Eastern Washington. The project includes plans for tolling to help fund construction and is intended to improve freight movement, airport access for passengers and air cargo, and regional economic development.
  • 2017-07-26

    Air Quality Initiatives at Sea-Tac Airport

    Presentation by Leslie Stanton, Sustainability Manager, Aviation Environmental, Port Of Seattle, delivered at the Highline Forum on July 26, 2017. Covers Port air quality goals and priorities, types and sources of air pollution at Sea-Tac Airport, span of control, pollution reduction initiatives, emerging science on ultrafine particulates (UFPs), reductions in PM (particulate matter) from climate