TagPSCAA(91)
Puget Sound Clean Air Agency
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Electrical Service Meters – 13631 18th Ave S, Air Station and Warehouse
Two exterior electrical meter/disconnect assemblies mounted on a corrugated metal building wall at 13631 18th Ave S. Labels identify the left unit as serving the 'Warehouse' and the right as the 'Air Station,' both rated 100A 120/240V 1-Phase with a Main Service Shut Off, and both bearing a '4000 AIC Fault Current Calc. on 11/18/24' sticker. -
Exterior antenna/sensor mast mounted on metal building wall
A galvanized steel mast with cross-bracing and guy wires is mounted on the exterior wall of a corrugated metal building, with what appears to be monitoring equipment (possibly acoustic or meteorological sensors) at the top. Gray electrical enclosures are visible at the base of the installation. -
Electrical conduit installation at metal building exterior
Exterior electrical installation showing EMT conduit runs supported by green conduit supports on gravel, connecting to a junction box and terminating at a service panel labeled 'Main Service Shut Off, 100A 120/240V 1-Phase.' A bare copper grounding conductor runs along the building's corrugated metal wall. -
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Sunset Park – King County Parks entrance sign
The blue entrance sign for Sunset Park, administered by King County Parks, is mounted on wooden posts along a roadway. A smaller line on the sign reads 'Park Entrance' with a directional arrow; a metal bench is visible to the left. Sunset Park is located near the Sea-Tac Airport noise-impact area in King County, Washington. -
2025-04-01
PSCAA Ultra Fine Particulate (UFP), SMPS Monitoring web page
Under Construction! Notes: – Particles are counted at 1 or 2.5 minutes per scan of the full size bin range – To select an earlier date, select a time button – SeaTac North monitoring began early April 2025 Other notes: – Data have been smoothed in both dimensions, with a gaussian filter. – There are -
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2024-10-01Update on Our Ongoing Ultrafine Monitoring
The Puget Sound Clean Air Agency's Monitoring Team provides an October 2024 update on their ongoing ultrafine particle (UFP) monitoring program, explaining that UFPs are extremely tiny particles smaller than 0.1 microns that are not currently regulated under air quality standards. The presentation covers key concepts such as particle number concentration (PNC), monitoring instrumentation, and WHO good practice recommendations for UFP measurement. While not specific to noise policy, this monitoring effort is relevant to understanding air quality impacts near high-traffic areas such as airports.