Dog-gone oil spill cleanups, coastal city wipeouts, leaded bullets
Is your baby getting its daily dose of hormone-disrupting chemicals? (photo courtesy of pfly)
Low chemical doses may have big health effects
A recent finding that tiny doses of certain hormone-altering chemicals can lead to harmful health effects could lead to a paradigm shift in the way that regulators evaluate a chemical’s harmfulness, reports Environmental Health News. Traditionally, toxicologists and regulators have evaluated the toxicity of a chemical by following the common adage, “The dose makes the poison,” which means that some chemicals can be harmful at high doses but perfectly fine at lower doses. However, this latest research has flipped that theory on its head by finding that some chemicals, especially those with hormonal properties like bisphenol A (BPA), can actually have a more harmful effect on people at low, rather than high, doses. Considering that BPA is found in everything from baby bottles to soup cans, the new study has implications not only for scientists and regulators, but for the people who are exposed to these chemicals on a daily basis.
Arctic oil spill cleanup methods go to the dogs
Norwegian researchers are experimenting with using dogs to sniff out oil spills in the harsh Arctic environment, reports the UK Guardian. So far the super-sniffing dogs, a dachshund and two border colliers, have been able to detect the scent of oil up to three miles downwind of a spill. Though impressive, the oil sniffing dogs experiment has largely been derided as a last ditch option for cleaning up oil in an area where “we do not have adequate science and technology…particularly in ice,” said Marilyn Heiman, a director of PEW’s US Arctic Program. Though Shell doesn’t plan to deploy oil-sniffing dogs to the Arctic anytime soon, its existing “plan” to clean up an oil spill in the Arctic if one were to occur is scarily inadequate and is based on very unrealistic assumptions, says Earthjustice attorney Erik Grafe, who added, “The fact is, there simply is no way to adequately respond to an oil spill in the Beaufort Sea—it is too remote, icy, stormy, dark, and foggy. Shell’s plan needs to acknowledge the difficulties of the region, not assume them away.”