Biological environmental exposure levels (BEELs) are guidance values for industrial hygienists and other OHS professionals. The values relate biological monitoring levels of chemical markers in healthy worker biological media such as urine, blood, and exhaled breath to exposure via the lungs, skin, and the oral routes for 8 hours/day followed by 16 hours of no exposure for 5 consecutive days and then 2 days of no exposure. The BEEL Project Team will produce guidelines and their scientific support documents to aid OHS professionals. The finalized BEEL recommendations before public comment for methamphetamine (Tony Havics), dimethyl sulfoxide (Sheldon Rabinowitz), and n-octanol (Shane Que Hee) will be presented in addition to the progress toward making BEEL recommendations for 1-butoxy-2-
propanol (Cheryl Metzler) and D-limonene (Julie Panko).
• Methamphetamine BEEL Guideline. A. Havics, pH2 LLC, Avon, IN.
• Progress on a BEEL Guide for 1-Butoxy-2-Propanol. C.A. Metzler, BP, Houston, TX.
• BEEL Guideline for Dimethyl Sulfoxide. S.H. Rabinovitz, Sandler Occupational Medicine Associates, Gaithersburg, MD.
• Progress on a BEEL Guide for D-Limonene. J.M. Panko, ChemRisk, Pittsburgh, PA.
• Proposed BEEL for 1-Octanol. S.S. Que Hee, UCLA, Los Angeles, CA.