Daily Archives: November 23, 2011

Penn State data flawed, drilling study under review

A laboratory error is now said to have caused state researchers to mistakenly connect shale gas drilling with raised levels of bromide in well water.  Where was the quality control on the data….if the researchers did not know enough to double check the lab data before making a claim, then what else did they miss?  Click here for news coverage…

Is this…..FractureGate 1.0?…..What’s next from Penn State?

 
 

Flouridation: ADA Policy versus Independent Scientists

The Centers for Disease Control (CDC) and the American Dental Association (ADA) continue to support fluoridation of drinking water, based on historical studies. More recent studies are referenced by scientists opposed to fluoridation.

Click here for a recent news article discussing ADA policy and other views.  Click here for a presentation of independent scientists to the Austin, Texas city council.

Amesbury, Massachusetts voters reject flouridation

Voters decide to stop fluoridation….it was discontinued in 2009. Click here for more….

Gong et al 2011: Low-level groundwater arsenic exposure impacts cognition: a project FRONTIER study

The study design used here has a fallacy that is so serious it has its own name: the ecologic fallacy. These studies can be useful for generating ideas and possible hypotheses, but say nothing about what is actually occurring in the population. Unfortunately, the study gets blown out of proportion by the news media, sales people, activists and others as showing truth, when it does nothing of the sort. Hence, they are conducted to push an agenda…..and not for scientific discovery….

G. Gong, K.A., Hargrave, V. Hobson, J. Spallholz, M. Boylan, D. Lefforge, and S.E. O’Bryant. Low-level groundwater arsenic exposure impacts cognition: a project FRONTIER study. Journal of Environmental Health 2011 Sep;74(2):16-22.

Abstract: Arsenic is a ubiquitous environmental toxin with known neurological consequences. Few studies, however, have investigated groundwater arsenic concentrations and cognition among adults and elders. In the study described in this article, the authors examined the potential link between cognitive functioning and low concentrations of arsenic in drinking water. Arsenic concentrations were estimated by the Geographic Information System approach (GIS-arsenic) for 299 rural-dwelling adults and elders. Cognition was assessed with Folstein Mini-Mental State Examination (MMSE). Those in the relatively high GIS-arsenic exposure (> 10.0 microg/L) group had significantly lower MMSE scores than those in the low GIS-arsenic exposure (< or = 10.0 microg/L) group (p < .03). The number of years of education was significantly lower in those in the high GIS-arsenic group(s) than in those in the low GIS-arsenic group (p < .05). These results suggest that poorer cognitive functioning and lower education levels were associated with higher (though still low-level) GIS-arsenic levels in this rural adult cohort.