Feasibility Assessments

For the substances listed below, the BEI^® Committee has determined that developing a BEI^® is not currently feasible owing to inadequate scientific data. However, the Committee believes that these substances may pose important risks to the health of workers, and therefore, it encourages the submission of new data. Field or experimental studies on the relationship between biological indicators and either health risk or environmental exposure are needed for these agents. A brief summary of the current negative feasibility assessment, including data needs, for each of the listed substances is available from The Science Group, ACGIH^®.

Substance Acrylonitrile Alachlor Aluminum Antimony Beryllium Chlorpyrifos 1,4-Dichlorobenzene 2,4-Dichlorophenoxyacetic acid 2-Ethyl hexanoic acid Hydrazines Inorganic borates Manganese Methyl tert-butyl ether Methyl n-butyl ketone Methyl formate α-Methyl styrene Nickel Perfluorooctanoic acid (PFOA) Selenium Thallium Trimethylbenzene Vanadium pentoxide Vinyl chloride

Date of Feasibility Assessment March 1994 September 2009 September 2007 November 1996 November 2010 October 1996 March 1994 March 1994 September 2001 March 1994 October 1995 April 1995 October 1993 October 1995 September 2005 November 2010 November 1996 April 2007 October 1995 November 2010 August 1999 September 2009 August 2002