Exposure Assessment Lessons Learned
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Type:  Lessons Learned

Publisher:  Los Alamos National Laboratory, Los Alamos, NM (LANL)

Published As:  Public

Date: 

Topics:  Chemical Safety, Occupational Safety and Health, Work Management/Planning, Oversight

Protective force security guards were exposed to chemicals released by Plasite paint while supporting a job for the removal and replacement of a containment door. The job involved two craft workers grinding simultaneously to remove Plasite inside a plastic enclosure built around the work area to contain the dust. During the work, a small gap in the enclosure allowed contaminants to escape. The guards were sitting immediately outside the plastic enclosure. Another craft employee identified the problem about 5 minutes after the grinding started and notified the foreman in charge.

Lesson to be Learned: It is essential that exposure assessments consider the safety of support personnel when work involves potentially hazardous materials such as Plasite paint. It is also vital that work planners engage safety professionals in the work planning to ensure that work plans apply the hierarchy of controls, validate the effectiveness of controls, and assure that additional hazards are not created when adding controls.

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