Monitoring and Source Apportionment of Fine Particulate Matter at Lindon, Utah
Title:
Monitoring and Source Apportionment of Fine Particulate Matter at Lindon, Utah
Author:
Grover, Brett D. Carter, Cory B. Kleinman, Michael A. Richards, Jeremy S. Eatough, Norman L. Eatough, Delbert J. Dasgupta, Purnendu K. Al-Horr, Rida Ullah, S. M. Rahmat
Appeared in:
Aerosol science and technology
Paging:
Volume 40 (2006) nr. 10 pages 941-951
Year:
2006-10-01
Contents:
Under the EPA Science to Achieve Results (STAR) and the Environmental Monitoring for Public Access and Community Tracking (EMPACT) programs an intensive sampling campaign was performed during the month of August 2002 at the state of Utah Air Quality monitoring site in Lindon, Utah. The concentrations and composition of PM2.5 were measured using a variety of continuous samplers including a TEOM monitor to measure non-volatile PM2.5, a RAMS monitor to measure total PM2.5 including semi-volatile species, an ion-chromatographic based instrument to measure sulfate and nitrate, and an Anderson Aethalometer to measure elemental carbon and UV adsorption. Integrated PM2.5 data were collected using a PC-BOSS sampler, for the determination of detailed particle composition. Continuous gas phase concentrations of NO, NO2, NOx, H2O2, and O3 were also monitored. One-hour average PM2.5 data have been combined with continuous gas phase data to perform source apportionment using the EPA UNMIX program. Sources of fine particulate matter were apportioned into primary emission sources and secondary formation processes. Identified were primary mobile sources, including diesel and gasoline combustion vehicles, and both a day-time and night-time secondary source.