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Last updated on April 17, 2014 at 11:00 EDT

Latest Polychlorinated biphenyl Stories

2008-09-08 09:00:00

By CHELSEA CONABOY More loons than ever - 240 pairs - nested in New Hampshire this year. But biologists aren't cheering. That's because those pairs are having a hard time reproducing. Of the 125 loon chicks born this season, 95 survived, according to monitoring by the Loon Preservation Committee. That means the rate of reproduction was about 0.4 chicks per pair, too low to maintain a stable population. Even more worrying is that a total of seven chicks survived on the state's largest...

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2008-09-04 17:14:02

Scientists at the Norwegian Polar Institute reported Thursday that the tiny Arctic ivory gull has the highest known concentrations of PCBs, chemicals long used in the pesticide DDT along with plastics, paints and other products. The gull has set a new record as the bird most contaminated by the two prohibited toxins, the scientists said. There are currently about 14,000 ivory gulls, which inhabit areas from Canada to Siberia. The current research was conducted following reports that the...

2008-08-29 21:00:17

State, local and federal officials gathered in Ohio this week to celebrate the cleanup of PCBs, uranium, radium and thorium from the Ashtabula River. The Ashtabula River Partnership hosted a celebration Tuesday at the Ashtabula Yacht Club to recognize the removal of nearly 630,000 cubic yards of contaminated sediment from the river, which flows into Lake Erie northeast of Cleveland. The dredging began in September 2006 and ended this June, the EPA said in a release. The project, which...

2008-08-25 03:00:26

By Reinsch, Lee Marie Eight years into the cleanup of the lower Fox River, tons of toxins have been removed, and proponents of clean water see light at the end of the culvert. "We want what's best for the river, and from everything I've been involved with in the process, both the EPA and the DNR are really trying to do their best to clean it up," says Candice Mortara, president of Friends of the Fox advocacy group. The lower Fox River's PCB contamination, believed to have been caused at...

2008-08-23 03:00:18

The Kinnickinnic River will get a $22 million cleanup using funds from the federal government and the state of Wisconsin, officials said. The U.S. Environmental Protection Agency said the project calls for the removal of about 170,000 cubic yards of sediment contaminated with polychlorinated biphenyls (PCB) and polyaromatic hydrocarbons (PAH) along a a 2,000-foot section of the river on the south side of Milwaukee. The EPA said $14.3 million will come from the Great Lakes Legacy Act fund....

2008-08-14 03:00:39

By Anonymous New evidence that chemical contaminants are finding their way into the deep-sea food web has been found in deep-sea squids and octopods, including the vampire squid. These species are food for many deep-diving toothed whales and other predators. Michael Vecchione of the National Oceanic and Atmospheric Administration's Fisheries National Systematics Laboratory and colleagues reported finding a variety of chemical contaminants in nine species of cephalopods. "It was surprising...

2008-08-07 03:00:27

A new testing method is giving the Department of Environmental Quality a better grasp on PCB contamination in the Staunton River. The method is significantly more sensitive than those currently used for state tests, said Mike Shaver, regional biologist. "One of the reasons that we've identified some of these new sources or found the source was we got a much lower detection limit," Shaver said. Water tests from the past two years found three significant sources of PCBs to the Staunton that...

2008-08-03 03:00:13

By Jack Dew, The Berkshire Eagle, Pittsfield, Mass. Aug. 3--PITTSFIELD -- Plans to scale back the restoration of a heavily polluted lake has environmentalists demanding answers and asking regulators to rethink plans to bury the pollution under a cap of clean sand and soil. When the PCB cleanup settlement was finalized in October 2000, proponents said Silver Lake -- a large pond that sits next to General Electric's 250-acre plant -- would be capped, trapping the pollution under a clean...

2008-08-02 15:00:12

By LEE BERGQUIST Sediments that were laced with contaminated chemicals from the city's industrial past have been removed from the Milwaukee River in Lincoln Park. The $1.1 million project in front of the Blatz Pavilion was completed July 19, according to the state Department of Natural Resources. The cleanup of more than one acre of riverbed is the first step in a larger project estimated to cost up to $36 million that will remove polychlorinated biphenyls, or PCBs, from parts of the...

2008-08-02 03:00:15

By Lee Bergquist, Milwaukee Journal Sentinel Aug. 2--Sediments that were laced with contaminated chemicals from the city's industrial past have been removed from the Milwaukee River in Lincoln Park. The $1.1 million project in front of the Blatz Pavilion was completed July 19, according to the state Department of Natural Resources. The cleanup of more than one acre of riverbed is the first step in a larger project estimated to cost up to $36 million that will remove polychlorinated...