Abstract
A series of particulate emission tests were conducted on cotton gins in New Mexico and California. Allmeasured exhausts used high efficiency cyclones as emission control devices. Total suspended particulate (TSP) for allgins averaged between 0.069 and 0.092 g/m3 [0.03 and 0.04 grains per dry standard cubic foot (gr/dscf)] of air emitted.The PM10 fraction of the TSP ranged between 35 and 69% depending on the method of determination. Levels of PM2.5were determined to be between 0.4 and 2.5% of TSP. Opacity readings taken both during these tests and in earlier testsdid not correlate with TSP and cannot be used to reliably estimate TSP concentrations. The Hand-held Aerosol Monitor(HAM) correlates well with PM10 levels determined by the Coulter Counter and may be used by gin management forquick evaluation of emission control systems.
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