Big snip of many messages that were snipped
I also have no objection to eating it.
By the way, do you have any data on the temperature at which it breaks down?
Franz
According to info on the below site cooking does not destroy it...and the
below site gives information about it's toxicity when ingested. I have not
included reference to breakdown temperature nor toxicity in the below
'quote'.
Franz et all
The below info came from this website:
http://www.mindfully.org/Pesticide/R...tsheet-Cox.htm
There is much more information at that site than is below. But the info
below covers some of the things discussed on this thread-some not all. To
get more information read the info on the site. I have other sites as well
but let us start with this one.
Gary
"Persistence and Movement in Soil (of Glyphosate):
Glyphosate's persistence in soil varies widely, so giving a simple answer to
the question "How long does glyphosate persist in soil?" is not possible.
Half-lives (the time required for half of the amount of glyphosate applied
to break down or move away) as low as 3 days (in Texas) and as long as 141
days (in Iowa) have been measured by glyphosate's manufacturer.119 (See
Figure 6.) Initial degradation (breakdown) is faster than the subsequent
degradation of what remains.120 Long persistence has been measured in the
following studies: 55 days on an Oregon Coast Range forestry site121: 249
days on Finnish agricultural soils122; between 259 and 296 days on eight
Finnish forestry sites120; 335 days on an Ontario (Canada) forestry site123;
360 days on 3 British Columbia forestry sites124; and, from 1 to 3 years on
eleven Swedish forestry sites.125 EPA's Ecological Effect's Branch wrote,
"In summary, this herbicide is extremely persistent under typical
application conditions. "126*
Glyphosate is thought to be "tightly complexed [bound] by most soils"127 and
therefore "in most soils, glyphosate is essentially immobile."127 This means
that the glyphosate will be unlikely to contaminate water or soil away from
the application site. However, this binding to soil is "reversible." For
example, one study found that glyphosate bound readily to four different
soils. However, desorption, when glyphosate unbinds from soil particles,
also occurred readily. In one soil, 80 percent of the added glyphosate
desorbed in a two hour period. The study concluded that "this herbicide can
be extensively mobile in the soil ...." 123
Water Contamination
When glyphosate binds readily to soil particles, it does not have the
chemical characteristics of a pesticide that is likely to leach into water.2
(When it readily desorbs, as described above, this changes. However,
glyphosate can move into surface water when the soil particles to which it
is bound are washed into streams or rivers.4 How often this happens is not
known, because routine monitoring for glyphosate in water is infrequent.2*
Glyphosate has been found in both ground and surface water. Examples include
farm ponds in Ontario, Canada, contaminated by runoff from an agricultural
treatment and a spill129; the runoff from a watersheds treated with Roundup
during production of no-till corn and fescue130; contaminated surface water
in the Netherlands'; seven U.S. wells (one in Texas, six in Virginia
contaminated with glyphosate 131; contaminated forest streams in Oregon and
Washington132, 133; contaminated streams near Puget Sound, Washington 134;
and contaminated wells under electrical substations treated with
glyphosate.135"
Gary
Fort Langley, BC
Canada