TagAir Quality Monitors(75)
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2023-02-10Ultrafine 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. -
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Washington Air Monitoring Network: Air Quality Program
Washington State Department of Ecology -
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. -
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. -
Washington State Department of Ecology – Air Quality Index Map, Seattle/Sea-Tac Region
Screenshot of Washington's Air Monitoring Network interactive map (Air Quality Program, WDOE, version 2.73.4.19) showing PM2.5 Air Quality Index readings across the greater Seattle–Sea-Tac–Puget Sound area. All visible monitoring stations display green indicators (Good, AQI 0–50). -
2022-02-14Characterization of annual average traffic-related air pollution levels (particle number, black carbon, nitrogen dioxide, PM2.5, carbon dioxide) in the greater Seattle area from a year-long mobile monitoring campaign
Researchers conducted a year-long mobile air quality monitoring campaign across the greater Seattle area, measuring traffic-related pollutants including ultrafine particles, black carbon, nitrogen dioxide, fine particulate matter, and carbon dioxide at 309 locations. The study developed predictive models of annual average pollution levels to support health research on how traffic emissions affect Seattle residents, particularly the elderly. The findings showed strong spatial variation in pollution levels linked to traffic and land use patterns across the region. -
2021-12-01MATES 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. -
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. -
2021-01-18Ambient air quality monitoring platform
The University of Washington's Department of Environmental and Occupational Health Sciences is developing two mobile air quality monitoring platforms to identify pollutant mixtures in Washington communities affected by sources such as non-roadway transportation, industrial emissions, and burn events. The $925,000 project will equip hybrid SUV vehicles with instruments measuring ultrafine particles, black carbon, nitrogen dioxide, carbon monoxide, and other pollutants, enabling flexible and simultaneous monitoring at multiple locations. The project will also produce standardized sampling protocols and community engagement strategies to support long-term air quality trend analysis.