[ RadSafe ] Even low-level radioactivity is damaging, scientists conclude
rwhelbig at gmail.com
Thu Apr 10 03:59:55 CDT 2014
Think that "scientists" is really only one "scientist" who may have
failed to take the fact that other factors have influenced the
evolution of populations in the area around Chernobyl.
Even low-level radioactivity is damaging, scientists conclude
"And the truth is, if we see effects at these low levels, then we have
to be thinking differently about how we develop regulations for
exposures, and especially intentional exposures to populations, like
the emissions from nuclear power plants, medical procedures, and even
some x-ray machines at airports."
"With the levels of contamination that we have seen as a result of
nuclear power plants, especially in the past, and even as a result of
Chernobyl and Fukushima and related accidents, there's an attempt in
the industry to downplay the doses that the populations are getting,
because maybe it's only one or two times beyond what is thought to be
the natural background level,"
Date November 13, 2012
Source:University of South Carolina
Summary:Even the very lowest levels of radiation are harmful to life,
scientists have concluded, reporting the results of a wide-ranging
analysis of 46 peer-reviewed studies published over the past 40 years.
Variation in low-level, natural background radiation was found to have
small, but highly statistically significant, negative effects on DNA
as well as several measures of health.
Even the very lowest levels of radiation are harmful to life,
scientists have concluded in the Cambridge Philosophical Society's
journal Biological Reviews. Reporting the results of a wide-ranging
analysis of 46 peer-reviewed studies published over the past 40 years,
researchers from the University of South Carolina and the University
of Paris-Sud found that variation in low-level, natural background
radiation was found to have small, but highly statistically
significant, negative effects on DNA as well as several measures of
The review is a meta-analysis of studies of locations around the globe
that have very high natural background radiation as a result of the
minerals in the ground there, including Ramsar, Iran, Mombasa, Kenya,
Lodeve, France, and Yangjiang, China. These, and a few other
geographic locations with natural background radiation that greatly
exceeds normal amounts, have long drawn scientists intent on
understanding the effects of radiation on life. Individual studies by
themselves, however, have often only shown small effects on small
populations from which conclusive statistical conclusions were
difficult to draw.
"When you're looking at such small effect sizes, the size of the
population you need to study is huge," said co-author Timothy
Mousseau, a biologist in the College of Arts and Sciences at the
University of South Carolina. "Pooling across multiple studies, in
multiple areas, and in a rigorous statistical manner provides a tool
to really get at these questions about low-level radiation."
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