Respirable Silica Associated with Drywall Installation and Finishing Operations
1JAN KOEHN, M.S., CIH, INC., HOUSTON, TX
JAN KOEHN, M.S., CIH, INC.
Industrial hygiene professional and technical consulting services were provided for occupational exposure assessmentof specified drywall installation and finishing for new building construction to further review and update the client's company program documentation. Personal breathing zone airborne monitoring of drywall installation and finishing work activities were undertaken to determine compliance with current and proposed elements of the OSHA Respirable Crystalline Silica standard.
Situation / Problem:
A client required assistance with OSHA regulatory standard compliance requirements related to identification, assessment, evaluation, and further implementation of pertinent control measures for additional limitation of occupational airborne exposures to Respirable Crystalline Silica (RCS).
The occupational exposure assessment strategy for airborne RCS addressed representative collection of personal airborne breathing zone samples for Drywall Hangars and Drywall Finishers/Tapers. The sampling and analytical methods were: NIOSH 0600 and NIOSH 7500 with laboratory analysis for cristobalite, quartz, and tridymite forms of RCS. The designed industrial hygiene sampling strategy also included direct observation and evaluation of contractor activities, work practices and procedures.
Results / Conclusions:
Documented airborne personal monitoring results for three forms of RCS were compared with current and propsed OSHA regulatory requirements and other published technical recommended guidelines. Some personal monitoring results for airborne respirable particulates did exceed published OELs. Direct site observations by industrial hygiene personnel of existing control measures, work practices, and procedures were essential in assisting with subsequent airborne monitoring data interpretation and final project documentation.
Exposure Assessment Strategies
Acknowledgements and References
List any additional people who worked on the project or provided guidance and support along with details on the role they played in the research. (Please include first name, last name, organization, city, state and country).
LaToya McKelvey, M.S.; Jan Koehn, M.S., CIH, Inc.; Houston, Texas, USA
Jonathan Wiley; Jan Koehn, M.S., CIH, Inc.; Houston, Texas, USA
What learning level(s) is the presentation content geared towards?
Experienced - has a thorough understanding of the content area and work experience including application and evaluation of the content/concepts in a variety of contexts; can vary performance based on unique situations.