• 2023-05-11 22:01

    Study shows traffic-related air pollution in Irvine weakens brain function

    Anna Aldrich, University of California, Irvine The brains of wild type (WT) and Alzheimer’s (APP) mouse models were analyzed after exposure to purified air (Con) and ultrafine particulate matter (PM) for the presence of astrocyte cells. These were visualized by staining them green (left column), with potentially harmful and activated astrocytes appearing in red (middle
  • 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
  • 2022-08-17 23:17

    Ultrafine particles: unique physicochemical properties relevant to health and disease

    Kwon et al. Experimental & Molecular Medicine (2020) 52:318–328 https://doi.org/10.1038/s12276-020-0405-1 Experimental & Molecular Medicine REV I EW ART ICLE Open Ac ce s s Ultrafine particles: unique physicochemical properties relevant to health and disease Hyouk-Soo Kwon 1, Min Hyung Ryu2 and Christopher Carlsten2 Abstract Ultrafine particles (UFPs) are aerosols with an aerodynamic diameter of 0.1 µm (100 nm) or less. There is a growing concern in the public health community about the contribution of UFPs to human health. Despite their modest mass and size, they dominate in terms of the number of particles in the ambient air. A particular concern about UFPs is their ability to reach the most distal lung regions (alveoli) and circumvent primary airway defenses. Moreover, UFPs have a high surface area and a capacity to adsorb a substantial amount of toxic organic compounds. Harmful systemic health effects of PM10 or PM2.5 are often attributable to the UFP fraction. In this review, we examine the physicochemical characteristics of UFPs to enable a better understanding of the effects of these particles on human health. The characteristics of UFPs from diesel combustion will be discussed in the greatest detail because road vehicles are the primary source of UFP emissions in urban pollution hotspots. Finally, we will elaborate on the role of UFPs on global climate change, since the adverse effects of UFPs on meteorological processes and the hydrological cycle may even be more harmful to human health than their direct toxic effects. Introduction Ultrafine particles (UFPs) are particles with…
  • 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
  • 2020-12-05 10:00

    Beacon Hill Air & Noise Pollution Community Meeting Zoom Video

    https://seatacnoise.info/wp-content/uploads/20ECZoomCommunityReportBack12-5-20%20copy.mp4 Seattle Beacon Hill Air & Noise Pollution Community Meeting Dec 5, 2020 10:00 AM sponsored by El Centro De La Raza and hosted by Maria Batayola. Featured speakers were Congressman Adam Smith and Dr. Edmund Seto of UW DEOHS. Related: The Relationship Between Flight Traffic, Ultrafine Particles and Noise from the Seattle Aircraft Air
  • 2020-12-05 00:00

    The Relationship Between Flight Traffic, Ultrafine Particles and Noise from the Seattle Aircraft Air and Noise Study

    Edmund Seto, Elena Austin, Jianbang Xiang, Jeffry Shirai, Tim Gould, Timothy Larson Washington Environmental Health Disparities Map https://fortress.wa.gov/doh/wtn/WTNIBL/ This map ranks areas in red that are more impacted by cumulative environmental hazards. Many parts of Beacon Hill and other South King County communities have rankings in the red, and are impacted by cumulative hazards. NOISE Sea-Tac Airport Noise Impacts http://www.airportsites.net/SEA-Part150/documents/final/e-Chapter-3_Noise%20Analysis.pdf DNL 65 dBA Noise exposures are associated with human health effects > Cardiovascular effects > Sleep disturbance > Annoyance > Impaired children’s learning FAA 14 CFR Part 150 Analysis (2013) for Sea-Tac includes: > A model of noise contours attributable to flights > Measured noise, only looking at levels >60 dB that are >3 secs, correlated with flights > A 65 dB noise contour is considered a threshold for incompatible residential land use without mitigation. > But this 65 dB threshold is supposed to be for “cumulative noise” – noise from all sources. http://www.airportsites.net/SEA-Part150/documents/final/e-Chapter-3_Noise%20Analysis.pdf Beacon Hill Seattle Noise Study Video of noise from flyover Particulate Air Pollution micron is 1000 nanometers. So a UFP is <0.1 microns PM2.5 Measurements at Seattle Beacon Hill Site by Puget Sound Clean Air Agency Federal standard primary and secondary 24 hr μg/m3 98th percentile, averaged over 3 years primary 1 year 12.0 μg/m3 annual mean, averaged over 3 years Despite not exceeding standard, still ranks 10 on the Environmental Health Disparities Map, indicating that historic PM levels in this area are among the highest concentrations observed in the state. PM2.5 Measurements at Seattle Beacon…
  • 2020-03-17 22:09

    Ultrafine particles: unique physicochemical properties relevant to health and disease

    Hyouk-Soo Kwon, Min Hyung Ryu & Christopher Carlsten Experimental & Molecular Medicine volume 52, pages318–328 (2020)Cite this article 15k Accesses 98 Citations 82 Altmetric Metricsdetails Abstract Ultrafine particles (UFPs) are aerosols with an aerodynamic diameter of 0.1 µm (100 nm) or less. There is a growing concern in the public health community about the contribution of UFPs to human health. Despite their modest mass
  • 2019-12-13 00:00

    Mobile ObserVations of Ultrafine Particles: The MOV-UP study report

    The Mobile ObserVations of Ultrafine Particles (MOV-UP) study was a two-year project funded by the State of Washington to study air quality impacts of air traffic for communities located near and below the flight paths of Seattle-Tacoma International Airport. The University of Washington research team that led the study coordinated with local governments and solicited
  • 2019-11-15 17:10

    The toxic killers in our air too small to see

    Current pollution meters don’t count the very smallest pollutants – nanoparticles. Recent research suggests these tiny toxic substances could be a major cause of illness and death. By Tim Smedley 15th November 2019 A After years of headlines about air pollution, we’ve been misled on a few things about the world’s biggest environmental health problem.
  • 2018-02-07 11:17

    Aviation-Related Impacts on Ultrafine Particle Number Concentrations Outside and Inside Residences near an Airport

    Concentrations Outside and Inside Residences near an Airport N. Hudda,*,† M.C. Simon,†,‡ W. Zamore,§ and J. L. Durant† †Department of Civil and Environmental Engineering, Tufts University, 200 College Ave, 204 Anderson Hall, Medford, Massachusetts 02155, United States ‡Department of Environmental Health, Boston University, 715 Albany Street, Boston, Massachusetts 02118, United States §Somerville Transportation Equity Partnership, 13 Highland Ave, #3, Somerville, Massachusetts 02143, United States *S Supporting Information ABSTRACT: Jet engine exhaust is a significant source of ultrafine particles and aviation-related emissions can adversely impact air quality over large areas surrounding airports. We investigated outdoor and indoor ultrafine particle number concentrations (PNC) from 16 residences located in two study areas in the greater Boston metropolitan area (MA, USA) for evidence of aviation-related impacts. During winds from the direction of Logan International Airport, that is, impact-sector winds, an increase in outdoor and indoor PNC was clearly evident at all seven residences in the Chelsea study area (∼4−5 km from the airport) and three out of nine residences in the Boston study area (∼5−6 km from the airport); the median increase during impact-sector winds compared to other winds was 1.7-fold for both outdoor and indoor PNC. Across all residences during impact-sector and other winds, median outdoor PNC were 19 000 and 10 000 particles/cm3, respectively, and median indoor PNC were 7000 and 4000 particles/cm3, respectively. Overall, our results indicate that aviation-related outdoor PNC infiltrate indoors and result in significantly higher indoor PNC. Our study provides compelling evidence for the impact of aviation-related emissions…