Article: PCBs: The threat is fading.

As detailed by Herald reporter Bill Hutchinson last week, many residents of Pittsfield live in fear of serious illness because of contamination of their property by the chemicals known as PCBs (poly chlorinated biphenyl) used for decades by General Electric Co. in the manufacture of electrical equipment.

Many others believe their illnesses, or those of a neighbor or a loved one, are the result of exposure to mixtures of the 209 different PCBs.

These fears are not entirely irrational since the Environmental Protection Agency treated PCBs as very dangerous from the first reports of harm in the 1970s. The agency banned their manufacture almost two decades ...

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