In December, the U.S. EPA released final rules under the Toxic Substances Control Act (TSCA) intended to reduce exposure to five chemicals that are persistent, bioaccumulative, and toxic (PBT). PBT chemicals are of particular concern not only because they are toxic but also because they remain in the environment for long periods of time and can build up or accumulate in the body. The final rules limit or prohibit the manufacture, import, processing, and/or distribution in commerce for the following:
      • Decabromodiphenyl ether (DecaBDE): A flame retardant in plastic enclosures for televisions, computers, audio and video equipment, textiles and upholstered articles, wire and cables for communication and electronic equipment, and other applications.
      • Phenol, isopropylated phosphate (3:1) (PIP (3:1)): A plasticizer, a flame retardant, an anti-wear additive, or an anti-compressibility additive in hydraulic fluid, lubricating oils, lubricants and greases, various industrial coatings, adhesives, sealants, and plastic articles.
      • 2,4,6-tris(tert-butyl) phenol (2,4,6-TTBP): An intermediate/reactant in processing, and is incorporated into formulations destined for fuel and fuel-related additives.
      • Hexachlorobutadiene (HCBD): A chemical used as a halogenated aliphatic hydrocarbon that is produced as a byproduct during the manufacture of chlorinated hydrocarbons.
      • Pentachlorothiophenol (PCTP): A chemical used to make rubber more pliable in industrial uses.
  The agency also is reviewing two other PBT chemicals within the octahydro-tetramethyl-naphthalenyl-ethanone (OTNE) chemical category. They soon will open a public comment period on these. A summary of the final rules and the risk management actions for each chemical can be found at: https://www.epa.gov/assessing-and-managing-chemicals-under-tsca/persistent-bioaccumulative-and-toxic-pbt-chemicals-under Cornerstone’s chemical management experts are available to answer any questions related to industrial chemical reporting regulations.  Contact us today at info@corner-enviro.com or on our website.
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