Abstract
Inorganic and proximate compositions were determined for total and fine (under 20 μm diameter) dusts from cotton gins, textile mills; oil mills, and cotton compresses. The ash content of fine dusts was higher than that in total dust samples but decreased with the stage of processing in textile mills and gins. Inorganic composition often differed exten sively and appeared to depend on the soil composition and growing location. Large differences in water solubility and protein content also were observed. The difference between total and fine cardroom dusts was primarily in fiber content. Numerically and gravimetrically, the vast majority of mineral particles and plant fragments in carding dust appeared to be under 20 μm diameter. Little difference was found in the relative ratios of inorganic elements and nonfiber plant fragments in total and fine gin dust samples. Differences in dust composition Were often greater from one gin, mill, or compress to another than those among samples obtained at different stages of processing within the same plant,
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