Polychlorinated biphenyls (PCBs)

CASRN 1336-36-3

  • IRIS Summary (PDF) (22 pp, 150 K)
  • Status: Polychlorinated biphenyls (PCBs) is in step 1 at this time.

IRIS Toxicological Review of Polychlorinated Biphenyls (PCBS) (Scoping and Problem Formulation Materials)


EPA hosted an IRIS public science meeting on June 17-18, 2015, to provide an opportunity for the public to give input and participate in an open discussion regarding scoping and problem formulation materials that were prepared for the IRIS assessment, Polychlorinated Biphenyls (PCBs): Effects Other Than Cancer, prior to the development of the draft assessment.


In March 2015, EPA invited the public to provide input and participate in discussions about problem formulation, preliminary assessment materials, and draft IRIS assessments. During problem formulation, the IRIS Program was looking for input from the scientific community and the general public as it frames the specific scientific issues that were the focus of the systematic review of potential health hazards of PCBs (effects other than cancer).

In October 2014, EPA’s IRIS Program announced an agreement with the National Academies’ National Research Council (NRC) to arrange for independent experts to attend IRIS public science meetings to provide input on the science underlying the development of IRIS assessments. The NRC then selected a limited number of experts to join in the discussion of the key science topics with EPA with those that were registered as discussants on the EPA website. Participation of these experts was meant to be supplementary and stakeholders and the public continued to register as discussants on the EPA website and were also invited to suggest additional science topics prior to the agenda being finalized and released.


U.S. EPA. IRIS Toxicological Review of Polychlorinated Biphenyls (PCBS) (Scoping and Problem Formulation Materials). U.S. Environmental Protection Agency, Washington, DC, EPA/635/R-14/198, 2015.


Geniece Lehmann,  Ph:  919-541-2289,  Email:

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This download(s) is distributed solely for the purpose of pre-dissemination peer review under applicable information quality guidelines. It has not been formally disseminated by EPA. It does not represent and should not be construed to represent any Agency determination or policy.


Comments on the assessment may be submitted and reviewed using the Docket ID EPA-HQ-ORD-2011-0676

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