In the European Union, Glufosinate-ammonium is classified for presumed human reproductive toxicity, based on laboratory studies – for example, on rats – at doses impossible under realistic and responsible conditions of use. Glufosinate-ammonium is not classified for carcinogenic or endocrine disrupting effects.
Glufosinate-ammonium has been used safely for 30 years, on more than 100 crops in more than 80 countries around the world, and to-date, there are no known cases of harm to humans when applied according to labelled instructions. This reflects, firstly, that the dosage stipulated is far lower than the relevant safety thresholds, ensuring a wide margin of safety for workers and others near the farm during and after application. It also reflects the existing use of various measures – ranging from training on how to apply the product in line with the specific soil and weather conditions of the farm, to use of technologies to reduce exposure.
Furthermore, residues of Glufosinate-ammonium on food, if present, are at levels far lower than safety threshold limits; an average person would have to consume more than 250 apples in a single day in order to breach the toxicological safety threshold limits.