Start Date: Sep 01, 2008
End Date: Dec 31, 2012
The project plan is to evaluate six sites over the 2008 to 2010 ginning seasons, including a New Mexico gin, two California gins, a Texas gin, a Missouri gin, and a North Carolina gin. Selected gins should have similar abatement technologies (1D-3D cyclones with 2D-2D inlets on all exhausts) and process streams similar to the following: Module feeder or suction, No. 1 pre-cleaning, No. 2 pre-cleaning, overflow, No.1 lint cleaning, No. 2 lint cleaning, mote fan, mote trash fan, battery condenser, and master trash. Stack sampling will adhere to EPA protocols and will be performed by a certified stack sampling company under the supervision of the investigators. Stack sampling methods will include CTM-039, the EPA method for measuring PM2.5 stack emissions; Method 201, a standard EPA method for measuring PM10 stack emissions; and Method 5, a standard EPA method for measuring TSP stack emissions. Ambient air sampling will coincide with the stack sampling and will be conducted by USDA-ARS personnel and collaborators. The ambient sampling will follow USDA-ARS Air Quality Laboratory protocol. Samples of gin trash and other potential sources of ambient particulates (i.e., gin yard material) will be collected for analysis as particulate emissions parent material. Laboratory analyses, gravimetric and particle size analysis, and particle shape analysis will be conducted. All raw data will be compiled and organized for outside review. Results will be compiled in a report to the cotton ginners associations and project cooperators. The research will also be documented in the form of a series of manuscripts in peer reviewed technical journals to further disseminate the information for wider acceptance by the regulatory agencies and the scientific community.