ApocaDocuments (5) matching "toxic buildup" from this week
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Sun, Apr 18, 2010
from Yale 360:
As Pharmaceutical Use Soars, Drugs Taint Water and Wildlife
In recent years, scientists have detected trace amounts of more than 150 different human and veterinary medicines in environments as far afield as the Arctic. Eighty percent of the U.S.'s streams and nearly a quarter of the nation's groundwater sampled by the United States Geological Survey (USGS) has been found to be contaminated with a variety of medications.... Drugging our bodies inevitably drugs our environment, too, as many medications can pass through our bodies and waste treatment facilities virtually intact. And it is difficult to predict where and how unexpectedly vulnerable creatures may accrue potentially toxic doses.... A large body of evidence has connected this contamination with excess feminization in fish. In one study, U.S. and Canadian government scientists purposely contaminated an experimental lake in Ontario with around 5 nanograms per liter of ethynyl estradiol, and studied the effects on the lake's fathead minnow population, a common species that fish like lake trout and northern pike feed on.... Exposed to ethynyl estradiol, the male minnows' testicular development was arrested and they started making early-stage eggs instead. That year's mating season was disastrous. Within two years, the minnow population crashed.
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Hey, the world is sick. We do what we always do: medicate.
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Sat, Apr 17, 2010
from TIME:
Regulation of Toxic Chemicals Faces Tightening
But the [Toxic Substances Control Act] has remained stuck in the 1970s, an aging throwback that never gave Washington any real power to protect people from potentially toxic chemicals. It may finally be time to bring chemical regulation out of the polyester era. On April 15, New Jersey Senator Frank Lautenberg introduced new legislation that would overhaul the regulatory system, requiring manufacturers to prove the safety of chemicals before they could be sold. That represents a much needed change from the current system, in which the burden of proof falls on the Environmental Protection Agency (EPA) to show that a chemical is dangerous to human health or the environment before the agency can regulate it. "America's system for regulating industrial chemicals is broken," said Lautenberg in a statement. "My Safe Chemicals Act will breathe new life into a long dead statute by empowering the EPA to get tough on toxic chemicals."
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But ignorance of risk is much more profitable! Think of the economy!
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Fri, Apr 16, 2010
from Reuters, via DesdemonaDespair:
World marine debris totals 10 million pieces in 1-day cleanup
More than 10 million pieces of trash were plucked from the world's waterways in a single day last year. But for Philippe Cousteau, the beach sandals that washed up in the Norwegian arctic symbolized the global nature of the problem of marine debris.
"We saw flip-flops washing ashore on these islands in far northern Norway near the Arctic Circle," Cousteau, a conservationist and grandson of famed oceanographer Jacques Cousteau, said in a telephone interview.... "People don't wear flip-flops in the Arctic, at least not if they're sane," Cousteau said. "I think people are starting ... to realize that this is a global problem." ... Last year, 10,239,538 pieces of junk were retrieved from shorelines on one day, September 19, 2009, by about half a million volunteers in the conservancy's annual international coastal cleanup. This year's cleanup day is September 25. ...
Nearly 20 percent of the items collected threaten public health, including bacteria-laden medical waste, appliances, cars and chemical drums, the report said. Some debris is a threat to marine animals, which can become tangled in dumped fishing nets and line or ingest floating plastic junk. ...
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Unfortunately, "sanity" has not been demonstrated to be held in high regard.
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Mon, Apr 12, 2010
from Michigan Public Radio:
Invasive Species and PCBs
New University of Michigan research finds invasive species are accelerating PCBs up the food chain.
Recent dredging of the Saginaw River was intended to remove PCB contaminated soil. U of M fishery biologist David Jude says tests indicate the dredging worked.
But he says walleyes are showing signs of increased PCB contamination. Jude traces the problem to two invasive species, zebra mussels and round gobies.
"Zebra mussels filter a liter of water a day. They are removing a large amount of the algae out of that water," says Jude, "and as a result of that they are picking up a lot higher concentration of PCBs. There are some really outrageous high concentrations of PCBs in zebra mussels in the Saginaw River."
Jude says as other aquatic life eats the invasive mussels, the PCBs move up the food chain.
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Can we just call it unintended bioremediation?
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Mon, Apr 12, 2010
from Vancouver Sun:
Chemical used in everyday products raises concerns
The majority of liquid antibacterial soaps contain triclosan as an active ingredient to stop the growth of bacteria and to deodorize. It is also contained in toothpaste, facewash, deodorants and cosmetics. More recently, triclosan is also being added as a bacteria-killer to countertops, kitchenware, toys and clothes.
The FDA told Massachusetts congressman Edward Markey the agency shares his "concern" over the potential effects of triclosan in disrupting the body's endocrine system, so the agency is taking another look at the chemical.
"It is the FDA's opinion that existing data raise valid concerns about the effects of repetitive daily human exposure to these antiseptic ingredients."... Smith, who banished triclosan from his home years ago after reading studies identifying the antibacterial agent as a possible carcinogen and endocrine disrupter, saw the levels rise in his body by 2,900 times after using, over a two-day period, brand-name deodorant, toothpaste, anti-bacterial soap and shaving cream containing triclosan. ...
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But I was so glad I used Dial!
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