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| They didn't go on to explain 3 ppb and what the threshold levels mean.
The historical atrazine ppb levels in Indiana, all well below the standard of 3 ppb (This standard is 1,000 times safer than a level shown to have no health effects in laboratory animals. To put this in perspective, a 150-pound adult could drink 21,000 gallons of water containing 3 ppb of atrazine every day for 70 years and still not reach levels shown to have no effects in lab studies.)
Edited by boilerman77 5/26/2010 20:58
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Atrazine news story
