The Introduction of Thousands of Tonnes of Glyphosate in the food Chain-An Evaluation of Glyphosate Tolerant Soybeans.

Foods 2019 Dec 11;8(12). Epub 2019 Dec 11.

Science Policy Research Unit, University of Sussex, Brighton BN1 9SL, UK.

Glyphosate-tolerant (GT) soybeans dominate the world soybean market. These plants have triggered increased use of, as well as increased residues of, glyphosate in soybean products. We present data that show farmers have doubled their glyphosate applications per season (from two to four) and that residues of late season spraying of glyphosate (at full bloom of the plant) result in much higher residues in the harvested plants and products. GT soybeans produced on commercial farms in the USA, Brazil and Argentina accumulate in total an estimated 2500-10,000 metric tonnes of glyphosate per year, which enter global food chains. We also review studies that have compared the quality of GT soybeans with conventional and organic soybeans. Feeding studies in have shown dose-related adverse effects (mortality, reduced fecundity and delayed reproduction) of glyphosate residues in soybeans, even at glyphosate concentrations below allowed residue levels. We argue that GT soybeans need to be tested in fully representative and realistic contexts. However, the current risk assessment system has only required and received data from field trials with beans that were sprayed with much lower doses of glyphosate as compared to contemporary commercial farms. This has left knowledge gaps and a potentially serious underestimation of health risks to consumers.

Download full-text PDF

Source
http://dx.doi.org/10.3390/foods8120669DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6963490PMC
December 2019

Publication Analysis

Top Keywords

glyphosate
9
tonnes glyphosate
8
commercial farms
8
soybeans
7
field trials
4
year enter
4
glyphosate year
4
metric tonnes
4
trials beans
4
2500-10000 metric
4
enter global
4
global food
4
review studies
4
compared quality
4
received data
4
chains review
4
food chains
4
data field
4
estimated 2500-10000
4
studies compared
4

References

(Supplied by CrossRef)

James et al.
2017

Traavik et al.
2009

Similar Publications