Request for Information on 2,3-Pentanedione and Other Alpha - FR Doc 2011-274

SUMMARY: The National Institute for Occupational Safety and Health (NIOSH) of the Centers for Disease Control and Prevention (CDC) intends to evaluate the scientific data on 2,3-pentanedione (CAS 600-14-6, also known as pentane-2,3-dione; acetyl propionyl) and other
alpha-diketones and develop appropriate communication documents, such as a Current Intelligence Bulletin, Criteria Document and/or other informational products, and potentially establish a Recommended Exposure Limit (REL) for diacetyl substitutes. NIOSH is requesting information on the following: (1) Published and unpublished reports and
findings from in vitro and in vivo toxicity studies with 2,3-pentanedione, and other alpha diketones, (2) information on possible health effects observed in workers exposed to 2,3-pentanedione, and other alpha-diketones, (3) information on workplaces and products in
which 2,3-pentanedione and other alpha-diketones can be found, (4) description of work tasks and scenarios with a potential for exposure to 2,3-pentanedione and other alpha-diketones, (5) workplace exposure data, and (6) information on control measures (e.g., engineering
controls, work practices, personal protective equipment) that are being used in workplaces where potential exposures to 2,3-pentanedione and other alpha diketones occur.

Public Comment Period: Comments must be received by February 9, 2011.

full-text:
FR Doc 2011-274