Addressing PM Emission Issues That Are Currently Facing U.S. Cotton Gins
This new project, a collaboration of USDA-ARS and Texas A&M University researchers, has the following goals: 1) develop estimates of PM2.5 emission factors, ratios of PM2.5 to PM10, and ratios of PM2.5 to total suspended particulate for typical cotton gin PM emissions; 2) characterize cotton gin PM emissions (particle size, shape and density); 3) determine the over-or-under-sampling rates associated with current EPA approved stack sampling methods; and 4) develop a scientifically sound point source and receptor concentration data set that can be used to evaluate current dispersion models.
A minimum of six sampling gin sites -- one during the 2008 ginning season -- will be evaluated in Missouri, Texas, New Mexico, North Carolina and California. Every effort will be made to select gins with similar process system designs. All raw data will be organized for outside review.