Environmental Health News - Mar 22, 2019 - Carey Gillam
Study is the latest evidence that glyphosate herbicides are so pervasive that residues can be found in foods not produced by farmers using glyphosate.
As U.S. regulators continue to dance around the issue of testing foods for residues of glyphosate weed killers, government scientists in Canada have found the pesticide in 197 of 200 samples of honey they examined.
The authors of the study, all of whom work for Agri-Food Laboratories at the Alberta Ministry of Agriculture and Forestry, said the prevalence of glyphosate residues in honey samples - 98.5 percent - was higher than what was reported in several similar studies done over the last five years in other countries.
Glyphosate is the world’s most widely used herbicide and is the active ingredient in Roundup brands as well as hundreds of others sold around the world for agriculture and other purposes. Use has grown dramatically over the last 25 years and consumers have become concerned about residues of the herbicide in their food.
The data provides fresh evidence that glyphosate herbicides are so pervasive in the environment that residues can be found even in a food that is not produced by farmers using glyphosate. The researchers noted in their report that they ran into delays trying to calibrate their testing equipment “due to difficulties encountered in obtaining a honey sample which did not contain traces of glyphosate.”
Bees pick up traces of pesticides as they move from plant to plant, unintentionally transferring residues from crops or weeds sprayed with glyphosate back to their hives.
In a different study, researchers on the Hawaiian island of Kauai took honey directly from 59 bee hives and found glyphosate residues in 27 percent of them. The Hawaiian researchers said bee hives located near farming areas as well as golf courses where glyphosate is used had higher concentrations of the pesticide.
The Canadian report also comes amid growing evidence that glyphosate herbicides can cause cancer, specifically non-Hodgkin’s lymphoma. On Tuesday a jury in San Francisco unanimously found that Roundup, a glyphosate-based herbicide made popular by chemical manufacturer Monsanto Co., use was a “substantial factor” in causing non-Hodgkin’s lymphoma in a California man. That echoed a similar unanimous jury verdict handed down in August in a separate case in which a cancer victim also alleged his disease was due to exposure to Monsanto’s glyphosate-based herbicides.
Both verdicts came after plaintiffs’ lawyers presented evidence of multiple studies showing the cancer-causing potential of glyphosate herbicides, including one published last month in a journal whose editor is a senior scientist at the U.S. Environmental Protection Agency (EPA).
The Canadians’ decision to examine honey samples for glyphosate comes after a similar look at honey samples by a U.S. Food and Drug Administration chemist in 2017. That FDA scientist found all 28 honey samples he looked at had traces of glyphosate, with 61 percent of the samples having enough glyphosate to be measured. The other samples had residues of the herbicide too slight to measure.