2010-5-18· Silicosis is a disease caused by inhaling respirable silica dust. 1 Pyrophyllite is just one of many minerals that contain silica. Silica is an abundant ...
2004-12-6· The purposes of this study were a) to summarize measurements of airborne (respirable) crystalline silica dust exposure levels among U.S. workers, b) to ...
Randgold to boost gold production at Tongon mine in Ivory Coast 28 April 2014 Randgold Resources is planning to boost its gold production from its Tongon mine in ...