Science news articles about 'pcbs'

LONG BEACH, Calif., Dec. 16 (UPI) -- Researchers say sea lions and seals living off the coast of Southern California are contaminated by high levels of DDT and PCB.

... balance between excitation and inhibition. The researchers found that the two PCBs had different effects. The more potent, PCB95, enhanced ... . These results are significant to the understanding of the potential impact of PCBs on human neurodevelopment, Pessah said. "We think that in autism ...

... (AP) -- Later this month, the first trainloads of PCB-tainted sludge dredged from the Hudson River ...

WASHINGTON (AP) -- Hundreds of school buildings across the United States have caulk around windows and doors containing potentially cancer-causing PCBs, the Environmental Protection Agency says....

(AP) -- Crews dredging a polluted stretch of the upper Hudson River this year battled high water, old logging debris and unexpected levels of PCB contamination that slowed progress.

... will provide a major improvement in the situation. It may remove PCBs that are available to fish and other wildlife, and reduce the release ... of heavy industrial operation, the IHSC has been contaminated with PCBs. Prior to this study, there was little published data ...

... College of Public Health. "We were not surprised to discover that PCBs were continuously emitted from the sediments of the Indiana Harbor ... in the 1970s due to their toxicity and persistence in the environment, PCBs were widely used as coolants, in electrical transformers and in a wide ...

BRUNSWICK, Ga., March 1 (UPI) -- Scientists say bottlenose dolphins off the U.S. coast are at risk due to their food supply being contaminated with PCBs from a closed chemical factory.

Some fish oil capsules sold as as health supplements contain trace amounts of PCBs, according to a lawsuit filed Tuesday in California by an environmental group.

... a halting further dredging of the Hudson River if PCBs churned up by the work spread too much ...

In the 1980s, when Inuit communities first heard about organic toxins like PCBs and DDT in their food, they began to fear some of their healthiest practices.

... .com) -- A University of Toronto study of the concentrations of PCBs and other chemicals in the rivers running into Lake Ontario ...

... pay by the inch. It's a glorious time for using home-designed printed circuit boards (PCBs). read ...

At P.S. 11 in Brooklyn, 18 of 28 samples taken in 11 spaces, including classrooms, showed PCBs above the regulatory level of 50 parts per million.

In the building housing P.S. 13 and 358 in Brooklyn, elevated levels of PCBs were found in all seven samples taken from leaking light fixtures.