Next 20 Chemicals to Undergo Risk Evaluation under TSCA

Environmental Protection Agency (EPA) for U.S. after reviewing inputs from stakeholders and the public, announced the below next 20 chemicals which includes six phthalates, seven chlorinated solvents, four flame retardants, formaldehyde, a fragrance additive, and a polymer precursor to undergo risk evaluation under the amended Toxic Substances Control Act (TSCA). Finalizing this list of high-priority chemicals for risk evaluation represents the final step in the prioritization process outlined in TSCA and marks another major TSCA milestone for EPA in its efforts to ensure the safety of existing chemicals in the marketplace

The next steps for these chemicals are outlined in TSCA’s process for risk evaluation. This first includes taking public comment on scoping documents for each of these 20 chemicals. By June 2020, it is said that EPA will finalize these scoping documents which will include the hazards, exposures, conditions of use, and the potentially exposed or susceptible sub populations EPA expects to consider during each chemical’s risk evaluation. The agency also reported that they will also take public comments on the draft risk evaluations for these chemicals and will finalize them after considering the public input the agency receives.

List of 20 Chemicals

1. 1. 1. p-Dichlorobenzene
      2. 1,2-Dichloroethane
      3. trans-1,2- Dichloroethylene
      4. o-Dichlorobenzene
      5. 1,1,2-Trichloroethane
      6. 1,2-Dichloropropane
      7. 1,1-Dichloroethane
      8. Dibutyl phthalate (DBP) (1,2-Benzene- dicarboxylic acid, 1,2- dibutyl ester)
      9. Butyl benzyl phthalate (BBP) – 1,2-Benzene- dicarboxylic acid, 1- butyl 2(phenylmethyl) ester
      10. Di-ethylhexyl phthalate (DEHP) – (1,2-Benzene- dicarboxylic acid, 1,2- bis(2-ethylhexyl) ester)
      11. Di-isobutyl phthalate (DIBP) – (1,2-Benzene- dicarboxylic acid, 1,2- bis-(2methylpropyl) ester)
      12. Dicyclohexyl phthalate
      13. 4,4′-(1-Methylethylidene) bis[2, 6-dibromophenol] (TBBPA)
      14. Tris(2-chloroethyl) phosphate (TCEP)
      15. Phosphoric acid, triphenyl ester (TPP)
      16. Ethylene dibromide
      17. 1,3-Butadiene
      18. 1,3,4,6,7,8-Hexahydro-4,6,6,7,8,8-hexamethylcyclopenta [g]-2-benzopyran (HHCB)
      19. Formaldehyde
      20. Phthalic anhydride

Reference: https://www.epa.gov/newsreleases/epa-finalizes-list-next-20-chemicals-undergo-risk-evaluation-under-tsca