Chemical Substances and Other Issues Under Study (BEI^®)

Chemical Substances
1,3-Butadiene
Aluminum
Antimony
Atrazine
Benzene
Bisphenol-A
Carbon monoxide

Dibutyl phthalate
Glyphosate
Lead
Lithium hydroxide
Methyl ethyl ketone
Phenol
Trimethylbenzene

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 ACGIH® Science Group.

Substance
Acrylonitrile
Adipates
Alachlor
Aluminum
Antimony
Beryllium
1-Bromopropane
Chlorpyrifos
Copper
1,4-Dichlorobenzene
3,3’-Dichlorobenzidine
2,4-Dichlorophenoxy acetic acid
Diethanolamine
Diethylhydroxylamine
2-Ethyl hexanoic acid
Ethylene glycol
Formic acid
Hydrazines
Inorganic borates
Manganese
Methyl tert-butyl ether
Methyl n-butyl ketone
Methylcyclohexane
Methyl formate
Methyl isobutyl carbinol
α-Methylstyrene
Nitrobenzene
Perfluorooctanoic acid
Selenium
Styrene oxide
Thallium
Trimethylbenzene
Vanadium pentoxide
Vinyl chloride

Date of Feasibility Assessment
March 1994
July 2023
September 2009
September 2007
November 1996
November 2010
April 2017
October 1996
August 2024
March 1994
November 2022
March 1994
September 2013
September 2021
September 2001
November 2022
June 2023
March 1994
October 1995
October 2017
October 1993
June 2020
June 2020
September 2005
June 2020
November 2010
September 2013
April 2007
October 1995
September 2021
November 2010
August 1999
September 2009
August 2002