The way the study is structured does not prove what is claimed in this post, the time in the blood is not what is important, but rather where the mercury is and what damage that it does. Mercury vapor and organic mercury(methyl, ethyl) all readily cross cell membranes and the blood brain barrier, and one of the main reasons that mercury of any of these types don't stay in the blood long is that it is transferred rapidly into the brain, heart, liver, kidneys, hormone organs, etc.
The most extreme example of this is mercury vapor, such as is a common exposure at high levels from dental amalgam. www.flcv.com/damspr1.html
Mercury vapor in the blood is rapidly pumped throughout the body by the heart and is rapidly transferred across cell membranes and across the blood brain barrier. The average life of mercury vapor in the blood has been documented to be less than 10 seconds before being transferred into cells in the brain or other organs or parts of the body.
Magos L, Clarkson TW, Hudson AR. The effects of dose of elemental mercury and first pass circulation time on organ distribution of inorganic mercury in rats. Biochem Biophys Acta 1989; 991(1):85-9.
So of the 3 types of mercury being discussed here, mercury vapor has the shortest life in the blood, yet has been documented to cause adverse health effects at lower levels of exposure than methyl mercury(organic mercury). www.flcv.com/damspr13.htm
etc. that is, mercury vapor is the most toxic and does the most harm yet lasts in the blood the least amount of time.
(also confirmed by U.S. DOH(ATSDR) & EPA health guidelines for mercury types/ mercury vapor has lowest level health limit)
But this is backwards from the claims in this study. Autopsy studies have demonstrated that the mercury accumulates in the brain, heart, and other body organs, and at levels directly related to the number of amalgam fillings that a person has(which are the largest source of mercury in people with mercury amalgam fillings, www.flcv.com/damspr1.html)
Thus, this demonstrates that the methodology in this study is flawed and inaccurate, the half life in the blood has nothing to do with how much is in the brain and other organs or to the toxic effects of the exposure. In fact there is documentation here that the type that is in the blood the shortest has the highest level in the brain, etc., most readily crosses the blood brain barrier and cell membranes and remains in blood the least time. This is well documented in the medical literature by hundreds of peer-reviewed studies, see such studies in www.flcv.com/amalg6.html
Simiarly, ethyl mercury also readily crosses the blood brain barrier and cell membranes, so it is not how long that the ethyl mercury lasts in the blood that is important, but how much is in the brain and other organs and the degree of toxic effects on the brain and other organs and metabolic processes. The high degree of toxic damage done by the ethyl mercury exposure from vaccines to the brain and metabolic system is well documented in the medical literature and the mechanisms by which ethyl mercury causes the conditions seen in autism has been well documented by studies at the Univ. of Florida Medical School and many other studies
www.flcv.com/kidshg.html
Likewise, the experience of the autism clinics treating autistic children is clear and overwhelming. Hundreds of thousands of medical lab tests by doctors treating the thousands of autistic children have documented that the autistic children have extremely high levels of highly neurotoxic metals (mercury from vaccines and mother's amalgam fillings; aluminum from vaccines, lead from many sources, arsenic from many sources, antimony from Scotchguard that was in most children's bed clothes before being taken off the market due to the high levels found in these autistic children). And there is consistent evidence by test and experience that as the thousands of children have been treated by detoxifications of the mercury and other toxic metals, the levels of toxics declines and the neurological, immune, hormonal, and metabolic conditions decline and the children are significantly improved or recover.
This has been confirmed not only by the tests and results of treatments at the clinics, but by a huge survey of thousands of parents of autistic children by the autism association and Autism Research Institute, which found that metals detoxification was by far the most successful method of treating children with autism, but also had the least adverse effects of all drug treatments.
Autism Research Institute
Parent Ratings of Behavorial Effects of Biomedical Interventions
http://www.autism.com/treatable/form34qr.htm73% better after chelation/detox treatment only 3% worse