Which of the following statements describes a corrective action that should be taken when ambient air outside containment is elevated?

Which of the following statements describes a corrective action that should be taken when ambient air outside containment is elevated?

• A. Stop removal, mist air with amended water, cleanup debris, repair containment breach
• B. Ignore the reading and continue work
• C. Increase removal speed and close the containment door
• D. Ventilate and recheck air later in the day

Answer: (A)

When ambient air outside containment rises, the priority is to stop generating fibers and restore the containment barrier to prevent exposure. The best corrective action is to halt removal activities, mist the area with amended water to suppress dust and keep asbestos fibers from becoming airborne, clean up debris that can release fibers, and repair any containment breach to reestablish the enclosure. Wetting with amended water reduces the likelihood of fibers becoming suspended, making cleanup safer and more effective, and fixing the breach stops the pathway for fibers to escape to the surrounding environment. Choosing to ignore the reading, speed up removal, or simply vent and recheck later doesn’t address the immediate risk or fix the breach, and can allow further exposure or spread of fibers.

When ambient air outside containment rises, the priority is to stop generating fibers and restore the containment barrier to prevent exposure. The best corrective action is to halt removal activities, mist the area with amended water to suppress dust and keep asbestos fibers from becoming airborne, clean up debris that can release fibers, and repair any containment breach to reestablish the enclosure. Wetting with amended water reduces the likelihood of fibers becoming suspended, making cleanup safer and more effective, and fixing the breach stops the pathway for fibers to escape to the surrounding environment.

Choosing to ignore the reading, speed up removal, or simply vent and recheck later doesn’t address the immediate risk or fix the breach, and can allow further exposure or spread of fibers.