|
|
Study Finds Reproductive Health Effects From Low Doses of Bisphenol-A NC State University - 6/17/2009. New research from North Carolina State University and the National Institute of Environmental Health Sciences (NIEHS) shows significant reproductive health effects in rats that have been exposed to bisphenol-A (BPA) at levels equivalent to or below the dose that has been thought not to produce any adverse effects.
|
|
|
|
|
|
|
|
|
|
No Safe Amount: The Handshake Theory of Chemical Toxicity TreeHugger - 6/14/2009. The medieval physician Paracelsus said: "Poison is in everything, and no thing is without poison. The dosage makes it either a poison or a remedy." Often quoted in paraphrase as the dose makes the poison, this truism has dominated regulation and chemical management for centuries. Agencies strive to keep people and the environment healthy by establishing the "safe" level of a chemical. At the same time that regulatory systems have proceeded on the "safe" level theory, biochemists have expanded the state of knowledge about the role of chemical messengers in the body. And the clash of cultures is about to change the way we think about chemicals in our lives. What does it mean for you?
|
|