Monitoring diesel emissions from locomotives at the rail yard in Saint Joseph, Missouri diesel particulate matter, sulfur dioxide, and nitrogen dioxide
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Locomotive diesel exhaust emissions are a significant contributor to air pollution throughout the US. The objective of this study was to profile locomotive diesel emissions in the rail yard located in Saint Joseph, Missouri. The pollutants of interest included diesel particulate matter, nitrogen dioxide, and sulfur dioxide. A TSI Dusttrak DRX Aerosol Monitor 8533 was utilized to concurrently measure size-segregated mass fraction concentrations corresponding to PM1, PM2.5, Respirable, PM10 and Total PM size fractions. A Zefon Bio Pump was utilized along with The Allergenco-D IAQ air sampling cassettes in order to determine the shape of the DPM. None of the results of this monitoring yielded concentration above Environmental Protection Agency National Ambient Air Quality Standards (NAAQS). However, the concentrations of the particulate matter increased with the increase in the number of the train idling or crossing the sampling location.