NIOSH Sounds Alarm on Fracking Silica Exposures Full-shift breathing zone sampling at 11 hydraulic fracturing sites in five states found 79 percent exceeded the NIOSH REL and ACGIH TLV, with 31 ...

In a breakthrough study published in Scientific Reports, scientists have uncovered a crucial, often-overlooked hazard in coal mine dust—agglomerates hiding harmful silica particles.

These results correspond to the respirable dust samples collected from Aug. 1, 2014, through Jan. 2016, during Phase I, when 87,000 dust samples were collected from surface and underground coal ...

This report compares the monitoring technologies and sampling protocols currently used or required by the United States, and in similarly industrialized countries for the control of respirable coal ...

The proposed rule would lower the existing concentration limits for respirable coal mine dust from 2 milligrams of dust per cubic meter of air, or 2 mg/m³, to 1 mg/m³ over a 24-month phase-in period; ...

Are You Ready For OSHA’s New Rule? – Respirable Crystalline Silica Dust 5/17/16 3:00 pm to 4:00 pm EST Online Webinar 1302 North Meridian Street Indianapolis, IN United States Contact: Sally Young ...

Respirable dust can be linked to fibrosis, scarring of the lung as well as cancer and other health complaints. However, the levels found on the Tube were well below the legal maximum of 4mg/m3.