Dust from mining and quarrying, as well as natural dust from dust storms and volcanic eruptions, has plagued man for many years. While the mineral components of such dust can vary to a large extent, industrial dust is usually limited to the mined product which is cut and ground in quarries and mills. Natural dusts are usually composed of clay minerals, calcite, and quartz. In contrast, industrial dusts are limited to the mined products. Dusts from coal, asbestos, calcite, and quartz have caused health problems in the past. Dust in the stone industry is usually limited to calcite and silica. While calcite dust from limestone, dolomite, and marble is fully removable from the lungs, silica dust is absorbed by the lungs and can lead to silicosis.
KeywordsClay Quartz Dioxide Dust Silicate
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