Roundup Herbicide Toxic To Life In Parts Per Billion Range
New research on the DNA-damaging effects of the popular herbicide known as Roundup® indicates that it can do significant harm to fish even after short-term, environmentally low concentration exposures in the parts per billion range (?g /L).
Published this month (July, 2012) in the journal Environmental Monitoring and Assessments researchers set out to evaluate the genotoxic effects that the herbicide Roundup®, and its primary ingredient glyphosate, can have on a species of catfish known as Corydorasa paleatus. When exposed to minute concentrations of Roundup (at a concentration of 6.67 ?g/L, corresponding to 3.20 ?g/L glyphosate) for 3,6 and 9 days, the following effects were observed: "[T]he comet assay showed a high rate of DNA damage in group exposed to Roundup(®) for all treatment times, both for blood and hepatic cells." The researchers summarized their findings:
We conclude that for the low concentration used in this research, the herbicide shows potential genotoxic effects. Future research will be important in evaluating the effects of this substance, whose presence in the environment is ever-increasing.
http://www.greenmedinfo.com/blog/roundup-herbicide-toxic-fish-parts-billion-range#_ednref1