TagUltrafine Particles(75)
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2014-05-29Emissions from an International Airport Increase Particle Number Concentrations 4-fold at 10 km Downwind
Peer-reviewed study published in Environmental Science & Technology (American Chemical Society, 2014) by Neelakshi Hudda, Tim Gould, Kris Hartin, Timothy V. Larson, and Scott A. Fruin measuring spatial patterns of particle number (PN) concentrations downwind of Los Angeles International Airport (LAX) using mobile monitoring platforms (MMP) from USC and University of Washington. Study found at -
2014-05-28Research by Keck School of Medicine of USC scientists raises new concerns about air pollution impacts at Los Angeles International Airport
Uncategorized May 29, 2014 Contact: Leslie Ridgeway at (323) 442-2823 or lridgewa@usc.edu For a copy of the study, contact Leslie Ridgeway. Right: Graphic depicting ultrafine particle increase downwind of LAX relative to urban background air quality LOS ANGELES — For the first time, research conducted by scientists at the Keck School of Medicine of the -
2013-08-24LAX ultrafine particle (UFP) concentrations map, August 2013
This map displays ultrafine particle (UFP) concentrations measured by quartile along driving routes near Los Angeles International Airport (LAX) on August 24, 2013, between 1300–1800 hours. The map includes a wind rose showing predominant westerly winds, 65 dB noise contours from LAX flight paths, and nearby freeways I-405, I-110, and I-105. -
2012-02-18
Scientists Find New Dangers in Tiny but Pervasive Particles in Air Pollution
By Felicity Barringer Feb. 18, 2012 Fine atmospheric particles — smaller than one-thirtieth of the diameter of a human hair — were identified more than 20 years ago as the most lethal of the widely dispersed air pollutants in the United States. Linked to both heart and lung disease, they kill an estimated 50,000 Americans -
2005-07-15Fine-scale spatial and temporal variability of particle number concentrations within communities and in the vicinity of freeway sound walls
This 2005 technical proposal from the University of Southern California requests funding from the California Air Resources Board to study how ultrafine particle pollution varies at a fine scale within communities and near freeway sound walls. Researchers aim to determine whether single monitoring stations accurately represent residents' actual exposure to ultrafine particles, which are emitted primarily by vehicle traffic and are considered more toxic than the larger particles currently regulated by federal and state standards. The study focuses on spatial and temporal measurement of particle number concentrations rather than particle mass, as ultrafine particles may pose greater health risks despite making up only a small fraction of total airborne particulate matter.