NIOSH Researchers Find Silica Hazard

May 16th, 2012 by

NIOSH researchers find respirable crystalline silica hazard for workers engaged in hydraulic fracturing operations On April 30, NIOSH researchers presented preliminary data (PDF*) which suggest that gas and oil workers may be exposed to dangerously high levels of respirable crystalline silica while performing hydraulic fracturing operations. The researchers found that nearly half (47%) of the workers sampled