September 24, at 8: Overall, I had a good show as far as sales go, I thought traffic during room trading was a little light, there were periods when traffic was heavy, but it was sporadic. The attendance at the show itself seemed lighter then last year, most dealers I talked to said they did pretty good though despite what I thought was lower attendance.
Nearly 4, inert ingredients are approved for use by the U. About million pounds are applied to U. Until now, most health studies have focused on the safety of glyphosate, rather than the mixture of ingredients found in Roundup.
The research team suspects that Roundup might cause pregnancy problems by interfering with hormone production, possibly leading to abnormal fetal development, low birth weights or miscarriages.
Hundreds of studies over the past 35 years have addressed the safety of glyphosate. There's been a great deal of study on Roundup, and we're very proud of its performance.
The EPA classifies glyphosate as a Group E chemical, which means there is strong evidence that it does not cause cancer in humans. In addition, the EPA and the U.
The EPA has concluded that it is not dangerous to public health or the environment.
The French team, led by Gilles-Eric Seralinia University of Caen molecular biologist, said its results highlight the need for health agencies to reconsider the safety of Roundup.
Scientists there also linked genetic malformations in amphibians to glysophate. In addition, last year in Sweden, a scientific team found that exposure is a risk factor for people developing non-Hodgkin lymphoma.
Inert ingredients are often less scrutinized than active pest-killing ingredients. Although Monsanto is the largest manufacturer of glyphosate-based herbicides, several other manufacturers sell similar herbicides with different inert ingredients.
Kemery said the EPA takes into account the inert ingredients and how the product is used, whenever a pesticide is approved for use. But some inert ingredients have been found to potentially affect human health. Many amplify the effects of active ingredients by helping them penetrate clothing, protective equipment and cell membranes, or by increasing their toxicity.
For example, a Croatian team recently found that an herbicide formulation containing atrazine caused DNA damage, which can lead to cancer, while atrazine alone did not. POEA was recognized as a common inert ingredient in herbicides in the s, when researchers linked it to a group of poisonings in Japan.
Doctors there examined patients who drank Roundup, either intentionally or accidentally, and determined that their sicknesses and deaths were due to POEA, not glyphosate.
POEA is a surfactant, or detergent, derived from animal fat. It is added to Roundup and other herbicides to help them penetrate plants' surfaces, making the weed killer more effective. POEA lowers water's surface tension--the property that makes water form droplets on most surfaces--which helps glyphosate disperse and penetrate the waxy surface of a plant.
In the French study, researchers tested four different Roundup formulations, all containing POEA and glyphosate at concentrations below the recommended lawn and agricultural dose. They also tested POEA and glyphosate separately to determine which caused more damage to embryonic, placental and umbilical cord cells.
Umbilical cord cells were especially sensitive to POEA. The research appears in the January issue of the journal Chemical Research in Toxicology. These ranged from the typical agricultural or lawn dose down to concentrationstimes more dilute than the products sold on shelves.
The researchers saw cell damage at all concentrations. Goldstein said humans have protective mechanisms that resist substances in the environment, such as skin and the lining of the gastrointestinal tract, which constantly renew themselves. When they returned two weeks later, they found that 50 to percent of the populations of several species of tadpoles had been killed.
This article originally ran at Environmental Health Newsa news source published by Environmental Health Sciences, a nonprofit media company.The spread and intensity of the wildfires raging in California highlight the need for much stronger disaster management measures than the state has had previously, say experts.
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