No Charge for Members, $20.00 Non-Members - Crystalline silica is a basic component of soil, sand, granite, and many other minerals. Quartz is the most common form of crystalline silica. All three forms are extremely hazardous to human health and may become respirable size particles when workers chip, cut, drill, or grind objects that contain crystalline silica. In this course you will learn what you can do to protect yourself against exposures to Crystalline Silica.
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