Yes, I think it does make sense.
http://www.smallspacegardeningbasics.com/how-long-does-glyphosate-stay-in-the-soil/
"According to the United States Department of Agriculture, the half-life of the main weed killer in the world is between 3 and 249 days . For a long period of time, it is possible for Roundup to stay active in the soil. Glyphosate is the most widely used herbicide on the planet.
...
Does glyphosate stay in soil?
Glyphosate will accumulate in the soil for many years because it takes 140 days to break down to half it’s toxicity. In addition, glyphosate has been shown to disrupt the endocrine system, which
...
How long does it take Roundup to get out of soil?
The exact time can be determined by the amount and strength of the weed killer in the soil. It can take anywhere from one to 174 days for half the seeds to grow."
So, if you read between the lines -- and then add on that the research article I previously cited mentioned that glyphostate is dangerous at as little as 1/300 of the previously suspected "safe" exposure -- and then factor in the meaning of "half life", and the weirdly highly invariant numbers, the answer should reasonably be assumed to be "many" years.
How many? Using the most pessimistic "249 days" (which is the only responsible thing to do for something suspect as unsafe...but clearly not investigated nearly enough), I get roughly >7 YEARS before the "half life" gets the glyphosate down to something you **might** want to gamble putting into your body. But almost nobody is asked for permission to violate their bodies these days. Aren't corporations with billions to sue you just wonderful?
This is a back of the napkin calculation, of course, but it surprisingly accords with the "more than five years" Sepp Holtzer mentioned to our group, based on in his own careful soil observations, back in 2012. And Monsanto is as filthy as a corporation can be, so one should assume the worst. Therefore, I'm now thinking MORE than seven years -- and suggest you now begin thinking that way, also. It makes me sick to say this, because I used some only a few years ago.
| 