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MOBILE MEASUREMENTS OF ULTRAFINE PARTICLES NEAR AN URBAN, ELEVATED, HIGH-TRAFFIC ROADWAY

Author
Joerger, Verena Mireille
Abstract
Ultrafine particles (UFP) have both health and climate impacts and are emitted in large quantities by vehicles. To further our understanding of how high-traffic roadways contribute to urban UFP concentrations, a mobile sampling strategy is developed to measure UFP on a perpendicular transect near interstate 81 (I-81) in Syracuse, New York. Measurements are taken during morning rush hour and non rush hour using a bicycle-mounted TSI Nanoscan scanning mobility particle sizer capable of measuring particles with diameters of 10 – 420 nm. UFP concentrations near I-81 are considerably lower and more variable than reported in previous studies. The spatial decay of UFP with distance from I-81 is examined, and a linear mixed-effects model is generated to determine the variables that influence near I-81 UFP concentrations. Temperature, sampling time, and distance are important predictors of near-I-81 UFP concentrations, but local UFP sources are evident and identification of such sources is explored
Date Issued
2017-05-30Subject
Meteorology; Atmospheric sciences; Particulate Matter; aerosols; air quality; emission; roadway; ultrafine; Environmental health
Committee Chair
Pryor, Sara C
Committee Member
Whitlow, Thomas H
Degree Discipline
Atmospheric Science
Degree Name
M.S., Atmospheric Science
Degree Level
Master of Science
Type
dissertation or thesis