When these asbestos insulation boards or blocks are sawn apart or manipulated in any other way, asbestos is released into the air. Pipes in basements, furnace rooms, and utility rooms may be ...

contain no asbestos, whereas others, such as magnesia or calcium silicate insulation block and insulation cements, may contain 10 to 15 per cent asbestos. 9,10 Exposures are therefore to a number ...

In 1922, the U.S. Navy identified the naturally occurring asbestos mineral as the most efficient and cost-effective insulation, gaskets, and shipbuilding material. During World War II ...