Various products are produced in the chemical industry, including liquid product, solid product and other byproducts.The dust is mainly caused by the processing process, for example, dry product or relevant gas caused during material treatment, screening and mixing.

The dust may be caused during loading, conveying, charging and crushing in hundreds of granaries, soybean and oilseed processing plants, seed manufacturing plants, flourmills, maize mills, fodder and ethyl alcohol factories.