Elbert: U of I team fears PCBs may remain cause for concern
http://www.desmoinesregister.com/article/20091206/BUSINESS/912060321/-1/COMM07/Elbert-U-of-I-team-fears-PCBs-may-remain-cause-for-concern
http://www.desmoinesregister.com/article/20091206/BUSINESS/912060321/-1/COMM07/Elbert-U-of-I-team-fears-PCBs-may-remain-cause-for-concern
"PCBs, the toxic chemicals banned in the 1970s, are back. Actually, PCBs never went away, and researchers at the University of Iowa are trying to figure out how big of a problem that is and what can be done about it. When polychlorinated biphenyls were first discovered in the 1920s, they were considered a miracle additive. They never broke down, which made them great for industrial uses including lubricants, coolants, flame retardants, hydraulic fluids and pesticides. PCBs were added to products as diverse as electrical wiring and carbonless copy paper."
