Roundup Kills More Than Weeds
http://www.sott.net/
Amanda Kimble-Evans
Motherearthnews.com
Sat, 29 May 2010 18:50 EDT
A farmer mixes Roundup prior to application. Roundup is widely used in yards and gardens across North America, and U.S. farmers spray millions of acres of crops with it each year.
Alarming new research on the health hazards of Roundup weed killer is shining a harsh light on a regulatory process that was meant to protect us.
To protect our health, the U.S. Environmental Protection Agency (EPA) sets maximum legal residue levels for every pesticide, for dozens of crops. But a new study in the respected journal Toxicology has shown that, at low levels that are currently legal on our food, Roundup could cause DNA damage, endocrine disruption and cell death. The study, conducted by French researchers, shows glyphosate-based herbicides are toxic to human reproductive cells.
The potential real-life risks from this are infertility, low sperm count, and prostate or testicular cancer. But, "Symptoms could be so subtle, they would be easy to overlook," says Theo Colborn, president of The Endocrine Disruption Exchange. "Timing is of critical importance. If a pregnant woman were to be exposed early in gestation, it looks like these herbicides could have an effect during the sexual differentiation stage. They really lock in on testosterone." The bottom line is more research is needed before we can fully understand the effects of glyphosate exposure.
A Perfect Poison
The researchers' most disturbing findings were not only the cytotoxic and hormonal responses to low-dose exposures, but the fact that the "active" ingredient - glyphosate - had much less of a toxic impact alone than the branded chemical mixtures sold to homeowners and farmers nationwide.
Solvents and surfactants, legally considered "inert ingredients," are mixed with glyphosate in products such as Roundup weed killer to create chemical formulations that increase mobility and more direct access to the cells. "Those same factors that aid penetration into a plant, also aid penetration into the skin," says Vincent Garry, professor emeritus of pathology at the University of Minnesota. "These chemicals are designed to kill cells."
Despite being termed "inert," these added (and usually secret) ingredients are anything but benign, as the manufacturers have claimed for decades. The new French research found the surfactants not only amplify the effects of glyphosate, but glyphosate also amplifies the effects of the surfactants. Basically, one plus one equals something larger than two.
Herbicide manufacturers are subject to fewer rules in the testing of inert ingredients than they are for active ingredients, explains Caroline Cox, research director at the Center for Environmental Health in Oakland, Calif. "The tests the EPA requires for inert ingredients cover only a small range of potential health problems," Cox says. "Testing for birth defects, cancer and genetic damage are required only on the active ingredients. But we're exposed to both."
The Rise of Roundup
Glyphosate, mostly in the form of Roundup products manufactured by the Monsanto Co., has been widely used in the United States since the 1970s. Today, we spray more than 100 million pounds on our yards and farms every year, making it the most popular of the Monsanto chemicals. Monsanto continues to assure us its product is safe. "It's used to protect schools," a Monsanto spokesperson told Scientific American. Protect schools?! From what, killer weeds?
Glyphosate use has skyrocketed in recent years because of the widespread adoption of genetically modified corn, soy and cotton varieties that Monsanto developed to be resistant to
glyphosate, according to the Center for Food Safety. Although the companies promoted glyphosate-resistant crops as a way to reduce herbicide use, there's actually been a sharp increase in use on corn, soybeans and cotton since 2002, thanks to the emergence of resistant weeds. Farmers are battling glyphosate-resistant weeds with more glyphosate and other herbicides.
Most of the food we eat that contains corn or soy was sprayed with glyphosate herbicide, and we're being exposed to higher and higher levels of residue. In response to petitions from Monsanto, the EPA has approved up to 20-fold increases in the legal residue limits for food crops.
"Our bodies are gigantic spider webs of chemical communications that work in the parts-per-trillion range," says Warren Porter, professor of zoology and environmental toxicology at the University of Wisconsin. "When you put so-called 'insignificant' amounts of toxic chemicals into the mix, you have a molecular bull in a china shop. The possibilities for impact are endless."
Better Testing Coming
In response to growing public concerns, the EPA is getting ready to launch new tests on 67 potential endocrine disruptors. Critics say the proposed tests will cover only a portion of organs in the endocrine system, but supporters say it is at least a step in the right direction.
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Sayer Ji
GreenMedInfo
Wed, 15 Feb 2012 07:00 CST
Ar
© GreenMedInfo
New
research released ahead of print and published in the journal
Archives
of Toxicology indicates that Roundup, the most common formulation of the
herbicide glyphosate, is not only more toxic than its constituent ingredients,
but is capable of damaging DNA within a human cell line when diluted down to
450-fold
lower concentrations than presently used in GMO agricultural
applications. In the researchers' own words, Roundup has "genotoxic
effects after short exposure to concentrations that correspond to a 450-fold
dilution of spraying used in agriculture."
The chemical - glyphosate - is the highest selling herbicide in the world and
has been identified as having a wide range of potential adverse health effects
-- largely minimized and/or under-reported -- which include
over
two dozen diseases. Glyphosate's primary properties of concern are its
carcinogenicity,
genotoxicity
and
endocrine
disruptive actions. Roundup contains a surfactant known as
polyoxyethyleneamine which functions to reduce the surface tension between
Roundup and the cells exposed to it, making the cellular membranes more
permeable to absorbing glyphosate and other chemicals within the formula. The
surfactant in Roundup may therefore be responsible for increasing the toxicity
of glyphosate
by several orders of magnitude higher than it
exhibits by itself.
This new research sheds light on a fundamental problem associated with
toxicological risk assessments of agrichemicals (and novel manmade chemicals
in general), namely, these assessments do not take into account the reality of
synergistic toxicologies, i.e. the amplification of harm associated with
multiple chemical exposures occurring simultaneously. Moreover, toxicological
risk assessments on novel chemicals are based on the concept of determining
"an acceptable level of harm," instead of protecting those who would
be exposed to a chemical by implementing the precautionary principle, i.e. if
there is reason to believe that a chemical could cause harm (determined by
animal and in vitro studies) then they should be regulated as if they do cause
harm to humans. The precautionary principle would require that the
manufacturers of these chemicals prove their product is safe to humans before
being allowed to release it onto the market or into the environment, rather
than putting the burden of proving it unsafe on the consumer and/or exposed
populations, as is presently the case.
Glyphosate exposure is now ubiquitous due to the fact that 88,000 tons of it
were used in US in 2007 alone, and likely billions of additional pounds
globally.
Accumulating
evidence indicates it is resistant to biodegradation and now contaminates
the air, rain and groundwater throughout the areas where it has been applied.
**************************
Mike Barrett
Activist Post
Thu, 26 Jan 2012 10:42 CST
© n
A recent study conducted by a German university found very high concentrations
of glyphosate, a carcinogenic chemical found in herbicides like Monsanto's
Roundup,
in all urine samples tested.
The amount of glyphosate found in the urine was staggering, with each sample
containing concentrations at
5- to 20-fold the limit established for
drinking water.
This is just one more piece of evidence that herbicides are, at the very
least, being sprayed out of control.
Glyphosate in Monsanto's Roundup Impacting Global
Health
This news comes only one month after it was found that glyphosate, contained
in Monsanto's Roundup, is
contaminating
the groundwater in the areas in which it is used. What does this mean?
It means that toxic glyphosate
is now polluting the world's drinking water
through the widespread contamination of aquifers, wells and springs. The
recent reports of glyphosate showing up in all urine samples only enhances
these past findings.
Monsanto continues to make the claim that their Roundup products are
completely safe for both animals and humans. However, many environmentalists,
scientists , activists, and even doctors say otherwise.
Glyphosate radically affects the metabolism of plants in a negative way. It is
a systemic poison preventing the formation of essential amino acids, leading
to weakened plants which ultimately die from it.
A formula seems to have been made to not only ruin the agricultural system,
but also compromise the health of millions of people worldwide. With the
invention of Monsanto's Roundup Ready crops, resistant
superweeds
are taking over farmland, and public health is being attacked.
As it turns out, glyphosate is also
leaving behind its residue on Roundup
Ready crops, causing further potential concern for public health.
Glyphosate is even contributing to escalating
rates
of mental illness and obesity through the depletion of beneficial gut flora
that directly regulates these functions.
But it certainly doesn't stop there.
Researchers tested roundup on mature male rats at a concentration range
between 1 and 10,000 parts per million (ppm), and found that within 1 to 48
hours of exposure, testicular cells of the mature rats were either
damaged
or killed. Even at a concentration of 1 ppm, the Roundup was able to
affect the test subjects by
decreasing
their testosterone concentrations by as much as 35%.
***************************
Sayer Ji
GreenMedInfo.com
Wed, 14 Dec 2011 07:37 CST
New Study: Monsanto's Herbicide May Be Poisoning The
World's Drinking Water
In
a
groundbreaking study published in the
Annals of Bioanalytical
Chemistry last month, researchers found that glyphosate, the active
ingredient in the herbicide "Roundup," is flowing freely into the
groundwater in areas where it is being applied. The researchers found that 41%
of the 140 groundwater samples taken from Catalonia Spain, had levels beyond
the limit of quantification - indicating that, despite manufacturer's claims,
it does not break down rapidly in the environment, and is accumulating there
in concerning quantities.
Why Is Groundwater Contamination An Important Finding?
Groundwater is water located beneath the ground surface, that supplies
aquifers, wells and springs. If a chemical like glyphosate is mobile enough to
get into the groundwater and is intrinsically resistant to being biodegraded
(after all, it is being used to kill/degrade living things - not the other way
around), significant environmental exposures to humans using the water are
inevitable.
Keep in mind that glyphosate is considered by the EPA as a Class III toxic
substance, fatal to an adult at 30 grams, and has been linked to over
20
adverse health effects in the peer-reviewed, biomedical literature.
This groundwater contamination study adds to another
highly
concerning finding from March, published in the journal of
Environmental
Toxicology and Chemistry, where researchers found the chemical in 60-100%
of all air and rain samples tested, indicating that glyphosate pollution and
exposure is now omnipresent in the US. When simply breathing makes you
susceptible to glyphosate exposure, we know we are dealing with a problem of
unprecedented scale.
Who Is Responsible For The Groundwater Contamination?
Monsanto is a multinational agricultural biotechnology corporation, presently
dominating the global genetically engineered seed market, with 90% market
share in the US alone. It is also the world's largest producer of the
herbicide glyphosate, marketed as "Roundup," among other brand
names. If you are eating corn and soy, or any of their ten thousand plus
byproducts - and it does not have a USDA organic logo - you are getting the
Monsanto "double whammy": the genetic modification (GM) of your
health (and gene expression) that follows the consumption of GM food (because
we are - literally - what we eat), and ceaseless chemical exposure to
glyphosate, as all Monsanto-engineered foods have been designed to be
glyphosate-resistant, and therefore are saturated with it.
© GreenMedInfo.com
Is Monsanto's Herbicide A New Agent Orange?
Roundup is not Monsanto's first entry into the systemic herbicide market.
Monsanto
admits it manufactured the herbicide/defoliant Agent Orange from 1965 to
1969, which
Vietnam
estimated killed and maimed 400,000 people and resulted in the 500,000
children being born with birth defects.
The true devastation caused by Agent Orange was covered up for many years. We
may find that Monsanto's Roundup, and its primary active ingredient glyphosate,
may be causing a similar degree of devastation to both environmental and human
health under the lidless, though not very watchful eye (as far as business
interests are concerned), of our regulatory agencies.
Indeed, glyphosate is a powerful endocrine disrupter. Exceedingly small
amounts are capable of mimicking and/or disrupting hormonal pathways, cell
receptor sites and signaling. Research culled from The National Library of
Medicine links it to
17
adverse pharmacological actions, including carcinogenicity, genotoxicity,
neurotoxicty, hepatoxicity, and nephrotoxicity.
But what is most disturbing, and which may make its comparison to Agent Orange
all the more appropriate, is its teratrogenicity, i.e. ability to cause fetal
malformations.
As
recently as 2004, glyphosate was revealed to exhibit endocrine-disruptive
and embryotoxic effects, indicating that it may contribute to birth defects
and abnormal fetal development.
Now that glyphosate has been found in the majority of air and rain samples
tested in the US, and is now likely contaminating our wells, springs and
aquifers, exposure is not only likely, its inevitable -- the difference being
only a matter of degree.
Eating, Breathing, Drinking ... Dying
The precautionary principle, which is not employed here in the US, would
require that if a company produces a novel chemical compound like glyphosate,
and would like to use it commercially, it would have to prove its safety to
humans before it is released into the environment.
Animal and cell research clearly shows glyphosate is harmful, but because we
use a "weight of evidence standard" in this country, the burden of
proof that it is harmful to humans is actually on those being harmed by it.
Had Monsanto been required to prove its safety in humans, it is doubtful they
would have been able to. There was already enough damning animal research
available, and proving a toxic chemical in human studies would require harming
them, which is unethical.
This is why the precautionary principle is so powerful and necessary to
protect us from corporations like Monsanto. We would not be eating, drinking
and breathing glyphosate today, if it had been employed earlier. Instead,
chemical companies use animal experiences to determine a LD50 (the dose at
which 50% of the animals die), from which an "acceptable level of
harm" is extrapolated and applied to human toxicological risk
assessments.
An acceptable level of harm? This way of thinking is abusive, especially when
applied to the unborn and infants.
Will it take additional decades of cumulative "acceptable"
exposures, and thousands of "mysterious" miscarriages, birth
defects, and developmental problems for us to how serious the problem is? Or,
should we listen to Monsanto, their scientists, and the governmental
regulatory agencies that they populate with elected and unelected officials on
their payroll?

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