and cutting or crushing stone result in worker exposures to respirable crystalline silica dust. Industrial sand used in certain operations, such as foundry work and hydraulic fracturing (fracking), is ...

There are many types of activities that produce crystalline silica dust which could result in worker exposure ... such as foundry work and hydraulic fracturing (fracking) is also a source of ...

The Australian Workers' Union has spoken out strongly after workers as young as 32 building a road tunnel in Sydney contracted a deadly lung disease.

"Inhalation of crystalline silica has been linked to lung ... OSHA should be your primary source of information pertaining to dust suppression and containment on the jobsite.

He said the road headers used in the tunnelling projects exposed workers to levels of silica dust far greater than ... is preventing it at the source which means adequate ventilation, wetting ...