A Protocol for Determining a Fugitive Dust Emission Factor from a Ground Level Area Source

Abstract

Source sampling was conducted over a four-day period at a Texas cattle feed yard. Twenty four tests were conducted to measure the TSP and PM10 concentrations at five locations around the feed yard. These concentrations were used in a semi-iterative process with ISCST3 to back-calculate 17 daytime average emission fluxes and 4 average nighttime emission fluxes. The results of the study yielded a 24-hour average PM10 emission factor of 19 kg/1000head-day (42 lbs/1000hd-day) including unpaved road dust emissions. Due to moist pen conditions, the distinction between the road dust fraction and pen surface fraction of the emission factor was made. The PM10 emission factor from the cattle pens was determined to be on the order of 3 kg/1000hd-day (6