What is the clearance standard set by DSHS for final air clearance in asbestos work?

The clearance standard set by the Texas Department of State Health Services (DSHS) for final air clearance in asbestos work is 0.01 fibers per cubic centimeter (f/cc) time-weighted average (TWA). This standard is crucial because it ensures that the air quality in a post-abatement environment is safe for re-occupancy. A clearance level of 0.01 f/cc TWA reflects a stringent approach to minimizing the risk of asbestos exposure, acknowledging the hazardous nature of asbestos and the importance of reducing fiber levels to the lowest practicable concentrations. Meeting this standard indicates that the area has been properly cleaned and that the risk of inhaling airborne asbestos fibers is minimized, thereby protecting the health and safety of individuals who will occupy the space thereafter.