PCBs in Schools

Coplanar (aka “dioxin-like”) PCBs

Polychlorinated biphenyls (PCBs) are an environmental contaminant in the news  because they have been discovered in schools and other buildings.  PCBs are actually a mixture of many different similar chemicals; there are 209 chemically different chlorinated biphenyls that together make up the PCB chemical group.   If you spend time learning more about PCBs, a […]

Differences Between Type 1 and Type 2 Aroclor 1254 (PCBs)

Aroclor 1254 was the PCB mixture most commonly used in building materials, based on my personal experience reviewing test results.  Recently, as I was digesting data and researching literature to prepare for my UMass Soils Conference presentation this fall, I discovered something interesting about Aroclor 1254 that I hadn’t known; there are two types of […]