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TagPSCAA(43)

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  • PSCAA ongoing SMPS instrument collocation at 10th and Weller
    2025-04-11 19:09

    PSCAA UFP Monitoring Update – Ongoing Collocation

    Both SMPS instruments operating side-by-side at 10th & Weller since September 24, 2024, to validate measurement consistency before deploying second unit to Sea-Tac site.
    TagsAir Quality Monitors, PSCAA
  • 2025-04-11 19:09

    PSCAA UFP Slide 10 — Real-Time UFP Data Oct 2024

    PSCAA Air Quality Programs-UFP (October 2024): Real-time SMPS and UFP count data at Seattle 10th & Weller A station, October 10, 2024.
    TagsAir Quality Monitors, PSCAA
  • 2025-04-11 19:09

    PSCAA UFP Slide 9 — Initial UFP Data Summer 2024

    PSCAA Air Quality Programs-UFP (October 2024): Hour-of-day average UFP at 10th & Weller, summer 2024. Highest concentration during morning rush hours; particle size increases by midday.
    TagsAir Quality Monitors, PSCAA
  • 2025-04-11 19:09

    PSCAA UFP Slide 19 — Research Collaborations

    PSCAA Air Quality Programs-UFP (October 2024): Research collaborations include UW MOV-UP study and ASCENT study (Olivia Hakan, UW / ORCAA).
    TagsAir Quality Monitors, PSCAA
  • 2025-04-11 19:09

    PSCAA UFP Slide 18 — April 11 2025 Particle Data

    PSCAA Air Quality Programs-UFP presentation: SMPS particle counts and UFP totals at 10th & Weller and SeaTac North for April 11, 2025.
    TagsAir Quality Monitors, PSCAA
  • 2025-04-11 19:09

    PSCAA UFP Slide 17 — Apr 3 2025 Weather and Particle Data

    PSCAA Air Quality Programs-UFP presentation, April 3, 2025: SMPS particle counts and UFP totals at 10th & Weller and SeaTac North monitoring sites for April 3, 2025.
    TagsAir Quality Monitors, PSCAA
  • 2024-02-05 14:59

    PSCAA Air Quality Monitor Site Sunset Park 2024-02-05

    Sunset Park King County DNRP service yard. TSI Scanning Mobility Particle Sizer, which will collect routine ultrafine particle counts in many size bins. Also hourly black carbon and total fine particle concentrations at this site. Google Maps
    TagsAir Quality Monitors, North Sea-Tac Park, PSCAA, Puget Sound Clean Air Agency
  • 2023-05-03 14:12

    Ultrafine particle monitoring (Seattle/Chinatown and Sea-Tac Airport) HDC2 11 12 42

    2/10/2023 HDC 336 - Local Community Project Information Form 1 2023 Legislative Session Member Requested Local Community Project Information Form Important Notes: This is not a formal grant program. This form provides information for House members to request a separate appropriation in the capital budget for this project. Funding any project is at the discretion of the Legislature. This document may be subject to disclosure under the Public Records Act (Chapter 42.56 RCW). Funds are available on a reimbursement basis only and cannot be advanced. Tips: Successful past projects generally are ones in which the requested state funds: (1) are used for a facility providing an important public benefit; (2) are a small portion of the total project funding (25% or less); (3) result in a completed project or phase usable by the public for the intended purpose when the state funds are expended; and (4) are for a project that is ready for construction or renovation and will be completed within the biennium. I. Project Name and Sponsor Ultrafine particle monitoring (Seattle and TBD) $412,000 Sponsor(s): Orwall, Rep. Tina II. Where is the project physically located? Address: An air monitoring site near Sea-Tac Airport (to be determined) and 10th Ave & Weller St, Seattle Seattle and TBD , 98104 King District(s): 33, 37 Coordinates: 47.4667235, -122.3240617 III. Project Contact Organization: Puget Sound Clean Air Agency Contact: Kathy Strange , Director of Air Quality Programs Website: https://pscleanair.gov/ Phone: 206-689-4095 E-mail: kathys@pscleanair.gov Address: 1904 3rd Ave, Suite 105 Seattle, 98101
    CategoriesLegislation TagsAir Quality Monitors, PSCAA, Puget Sound Clean Air Agency, Rv, Tina Orwall, Ultrafine Particulates
  • 2022-08-13 22:48

    *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
  • 2021-01-17 21:25

    The Sea-Tac Airport Annual Air Quality Monitoring Proposal (STAAQM)

    This post describes a proposal we have put forward to Washington State legislators Senator Karen Keiser (33rd) and Representative Jesse Johnson (30th). In one sentence, we want an annual report of all key aviation-related emissions for every neighborhood affected by the operations from Sea-Tac Airport. We refer to this proposal as Sea-Tac Airport Annual Air
    CategoriesChange The Culture, Legislation TagsAir Quality Monitors, DEOHS, Jesse Johnson, Karen Keiser, MOV-UP, Policy, PSCAA, Puget Sound Clean Air Agency, STAAQM, Suggested Legislation, UW

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  • PSCAA Advisory Council Meeting Agenda
    Add to CalendarMWednesday Mar 11, 9:00am - 11:35am
    1904 3rd Avenue, Suite 105, Seattle, WA 98101
    Call to order – Roll Call – Quorum Established – Land Acknowledgement We would like to acknowledge that our Agency operates in four present-day counties, which are the traditional lands of the Coast Salish people, past and present. This acknowledgement does not take the place of authentic relationships with indigenous communities in our jurisdiction and [...]

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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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This is the first study to combine a one-year mobile monitoring campaign with PMF (Positive Matrix Factorization) analysis to simultaneously estimate source-specific air pollution exposures and emission factors of different vehicle types. This methodology can be extended to other metropolitan areas.
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