Score one more for the non-environmentalists

NASA Watch linked yesterday to an article about exposure to perchlorate, which in large enough doses can affect the thyroid adversely:

A new report by the National Academies' National Research Council on the health effects of perchlorate, a chemical that in high doses can decrease thyroid function in humans and that is present in many public drinking-water supplies, says daily ingestion of up to 0.0007 milligrams per kilogram of body weight can occur without adversely affecting the health of even the most sensitive populations. That amount is more than 20 times the "reference dose" proposed by the U.S. Environmental Protection Agency in a recent draft risk assessment.

As with most environmental issues, when the hard science comes out, things are generally better off than the chicken-littles would like. I guess it's just a good thing that the same left which derides religion as superstition doesn't cling to its delusions in the face of hard evidence... oh, wait. Nevermind.