The purpose of the present study was to design and assess the efficiency of a local exhaust
ventilation system used in a foundry operation to control inhalable dust and particles …

Background: The term" crystalline silica" refers to crystallized form of SiO2 and quartz, as the
most abundant compound on the earth's crust; it is capable of causing silicosis and lung …

During mortar removal with a right angle grinder, a building renovation process known as
“tuck pointing,” worker exposures to respirable crystalline silica can be as high as 5 mg/m3 …

Field tests were carried out to compare the air quality in a gray iron foundry before and after
changing the molding material from the standard silica based sand to the mineral olivine …

Background The objective of this work was to estimate the percentage of workers by industry
that are exposed to defined concentrations of respirable crystalline silica dust. Methods An …

From 2009 to 2013, Alberta Jobs, Skills, Training, and Labour (JSTL) conducted a project to
evaluate exposure to crystalline silica and assess controls to protect workers. Information on …

The objective of this study was to quantify the respirable dust and respirable silica
exposures of roofing workers using an electric-powered circular saw with an aftermarket …

Occupational exposure to dusts containing crystalline silica have long been associated with
the induction of silicosis, a focal fibrosis of the pulmonary parenchyma. Since only the dust …

Although crystalline silica has been recognized as a health hazard for many years, it is still
encountered in many work environments. Numerous studies have revealed an association …

This study presents measurements of airborne concentrations of respirable crystalline silica
in the breathing zone of workers who were anticipated to encounter coal fly ash. Six plants …