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A Comparison of Particulate Matter Concentration Measured by TEOM and DustTrak

Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.org

Citation:  International Symposium on Air Quality and Manure Management for Agriculture Conference Proceedings, 13-16 September 2010, Dallas, Texas  711P0510cd.(doi:10.13031/2013.32658)
Authors:   Jacob P Post, Sreekala G Bajwa, Yi Liang, Tom A Costello
Keywords:   Broiler house, DustTrak, TEOM, Particulate matter, Emission

In this study, we compared two particulate matter (PM) monitoring instruments, the tapered element oscillating microbalance (TEOM) and DustTrak, operating inside a commercial broiler house. The TEOM and DustTrak were placed side by side inside a commercial broiler house between two tunnel fans. Data were collected for 7 days with PM10 heads on both instruments when the flock was 4 weeks old. In the following week, data were collected with PM2.5 heads on both instruments for a total of 3 days. The TEOM recorded an average of 600 g/m3 higher concentration for PM10, and 25 g/m3 lesser concentration for PM 2.5 than the DustTrak. This would amount to difference in emission rate of 335 kg/year for PM10 and 16 kg/year for PM2.5 between the two instruments. This study confirms the previous findings by other researchers that the accuracy of measurement can vary significantly among instruments.

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