This report describes a previously uncharacterized occupational health hazard: work crew
exposures to respirable crystalline silica during hydraulic fracturing. Hydraulic fracturing …

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 …

We created an exposure database of respirable crystalline silica levels in the construction
industry from the literature. We extracted silica and dust exposure levels in publications …

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 …

The purposes of this study were a) to summarize measurements of airborne (respirable)
crystalline silica dust exposure levels among US workers, b) to provide an update of the …

Excessive exposures to airborne crystalline silica have been known for over 100 years to
pose a serious health hazard. Work practices and regulatory standards advanced as the …

Exposures to respirable dust and silica were investigated among 36 construction sites in the
USA. Personal measurements (n= 151) were analyzed from 80 workers in four trades …

To expand on the limited size and scope of construction silica exposure studies, a silica
monitoring data compilation project was initiated through the American Conference of …

Studies reporting the findings of exposure to crystalline silica dust during concrete finishing
in construction settings are scarce due to the dynamic nature of the activity and the existence …

Crystalline silica is a health hazard commonly encountered in work environment.
Occupational exposure to crystalline silica dust concerns workers employed in such …