Part I – Physical Reasons Why Engineering Controls Cannot Provide 100% Containment of all Crystalline Silica
Part Seven in our series featured the July 2013 announcement by NIOSH about workers’ clothing being an eighth (8th) source of respirable silica in hydraulic fracturing. In addition, the HalenHardy team has identified 11 more areas of exposure before, during and after hydraulic fracturing including:
More than a year after listing the seven points of worker exposure to respirable silica dust in hydraulic fracturing operations, the same NIOSH researchers published an article outlining an eighth (8th) primary point of dust release and generation in the July 2013 American Industrial Hygiene Association magazine, The Synergist – “Keeping Up with the Oil and Gas Rush.” The authors, Eric Esswein and Ryan Hill, noted “work clothing (for example, flame retardant coveralls) contaminated with crystalline silica” is considered a dust release or generation point.
Comprehensive Guide to Minimizing Respirable Silica Dust Exposure in Hydraulic Fracturing
Part One – Hazard Alert of Worker Exposure to Silica Issued by OSHA/NIOSH