Word: pcbs
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Dates: during 2000-2009
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...This strong start must be backed up by further action. The EPA should classify fly ash as a hazardous material, just as mercury, battery acid, and PCBs are. Doing so would require power generators to adhere to higher disposal standards and clean up existing dumping sites as well as increase public awareness of fly ash’s toxicity. Regulators should also ban disposal of fly ash in slurry form and require utilities to store dry fly ash in lined landfills to avoid leaching. The federal government should create financial incentives for makers of building materials to recycle more...
Abandoned ships wreak havoc on the marine ecosystem long after they've sunk. Decaying wreckages leach toxic chemicals like petroleum products and PCBs that remain in the water harming or destroying sea life and potentially enter the food chain, eventually getting ingested by humans. Sometimes dead watercraft foster the growth of new sea life that threatens the pre-existing local ecosystem. On Palmyra Atoll, 1,000 miles south of Hawaii, a population explosion of corallimorph, an aggressive creature similar to anemones and coral, killed almost all the coral growing around a long-line fishing vessel that sank in 1991, according...
...which is charged with disposing of old warships (which are typically dismantled and recycled or turned into museums). It took nearly $20 million to ready the ship for safe sinking in accordance with standards set forth by the Environmental Protection Agency, which concluded that the 700 lb. of toxic PCBs aboard the Oriskany had been secured and would not harm wildlife. But the science regarding the safety of artificial reefing is still being developed. Chris Dorsett, vice president of fishery conservation and management at the Ocean Conservancy, says that toxins can still leach from boats underwater and that these artificial...
...replacements for fishmeal and fish oil - and we are doing this to the greatest extent possible," says Dr. David Higgs, a fish nutritionist for the Canadian government who works closely with British Columbia's $450 million salmon industry. (Reducing the fish content in feed also reduces the accumulation of PCBs in farmed fish, though Higgs insists that PCB levels in fish from British Columbia are some 50 to 70 times below FDA standards.) But such improvements have been offset by the industry's explosive growth. In the salmon industry, the largest aquaculture sector, the amount of wild fish required...
People seeking the heart-protective powers of omega-3 fatty acids in fish have been warned about the mercury, dioxins and PCBs that they might be consuming with their meal. But a study from the Harvard School of Public Health showed that while those contaminants pose a danger, particularly for women of childbearing age, for most people the benefits of fish outweigh the risks. Eat modest servings of fish each week--particularly salmon and bluefish--and you may reduce your risk of coronary heart disease 36%. Elsewhere, researchers at Louisiana State University reported that omega-3s can help protect cells...