OSHA Issues Final Rule On Silica

Today (March 24, 2016) OSHA released its final rule on worker exposure to silica. As expected, and as was discussed at the 2016 Frac Sand Industry Update on March 10, they reduced the permissible exposure limit (PEL) for respirable silica to 50 micrograms per cubic meter of air (half of the previous limit). They require […]

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