Daily Archives: March 12, 2014

Sen. Dianne Feinstein is NSA spying hippocrite

If NSA can spy on us, they can certainly spy on her as well.

“Sen. Dianne Feinstein’s outspoken criticism of “CIA interference” in a congressional investigation is in sharp contrast to her defense of an intelligence-gathering community that some say tramples on civil liberties. click here

The Deliberate Corruption of Climate Science

From Barnes and Noble:

“Dr. Tim Ball exposes the malicious misuse of climate science as it was distorted by dishonest brokers to advance the political aspirations of the progressive left.”

Tim Ball Corruption of Climate Science

Reference dose (RfD) proposed for PFOA, PFOS

USEPA has proposed draft risk estimates for chronic drinking water exposure for perfluorooctanoic acid (PFOA) and perfluorooctane sulfonate (PFOS), concluding that the weight of evidence is  only suggestive of carcinogenicity. (click here)

A reference dose (RfD) for PFOA is proposed at of 0.00002 milligrams/kilogram/day (mg/kg/day) due to adverse changes in the liver linked to developmental effects and adverse changes in the kidney. The RfD is the maximum amount of a substance the Agency estimates can be ingested daily over a lifetime without adverse non-cancer health effects. A cancer slope factor has also been proposed for PFOA but the RfD is thought to be more protective. 

Using standard default assumptions, the proposed RfD corresponds to a chronic drinking water health advisory levels of 0.1 ppb. This is stricter than the 2009 provisional value of 0.4 ppb for short term exposures.

An RfD is proposed for PFOS at 0.00003 mg/kg/day due to developmental toxicity and adverse liver effects. The current advisory level of 0.2 ppb for both short- and long-term exposures for PFOS are supported by the proposes PFOS RfD.

Comments are requested on the underlying studies and nominations requested for a peer review panel. Nominations are being accepted until March 21. Click here for the notice.