Are PCBs (Polychlorinated biphenyls) dangerous?

PCBs are a group of 209 odorless compounds manufactured first in 1929 and banned by the EPA in 1977.  PCBs can be inhaled, ingested, or absorbed through contact with skin.  They build up in the human body over time and do not break down easily.

Research suggests that PCBs cause a number of harmful health effects to the liver, immune system, and reproductive system. PCBs may cause cancer in humans as well as neurological and development problems in children exposed before birth. 


PCBs can be found in window caulking

PCB Inspections & Sampling:

Chem Scope, Inc conducts PCB pre-renovation and pre-demolition inspections and sampling.

The EPA regulates PCBs greater than or equal to 50 ppm or 50 mg/Kg.

The CT-DEEP regulates the removal and disposal of PCBs in excess of 1 mg/Kg.  

OSHA regulations also apply to workers and employers working with PCBs.

Samples collected by Chem Scope are analyzed according to the EPA’s “Test Methods for Evaluating Solid Waste, Physical/Chemical Methods”, also known as SW-846.