By Gerald and Natalie Sirkin c2007 A front-page story on PCBs in the March 9 News-Times is just wrong. The first thing to know about PCBs is that they never killed a single person nor did they ever cause cancer. The second is that although they are invariably called “cancer-causing,” that designation comes chiefly from a single rat study. The third thing is that the subject rats were exposed daily for 21 months to 100 parts per million (ppm) of PCBs containing 60% chlorine. (The 100 ppm was about 5,000 times the tolerable daily intake of PCBs set by FDA in 1973.) When rats were exposed to PCBs containing less chlorine, they developed no cancers. The fourth, that when the exposed rats were allowed to live out their lives, they had fewer cancers and lived longer than the unexposed rats. PCBs is a family of chemicals known as polychlorinated biphenyls. PCBs contain chlorine ranging from 12% to 70%. They were used in two General Electric plants that manufactured electrical equipmen...
go home from us in peace. We seek not your counsel or your arms. Crouch down and lick the hand that feeds you;
may your chains set lightly upon you, and may posterity forget that ye were our countrymen!"
--Samuel Adams