In sterile gauze and cottons "the percentage was 100%", said the doctor of Exact Sciences Damián Marino on the last day of the III Congress of Physicians of Fumigated Towns, while it was less than 80% in intimate wipes and swabs.
Marino explained that his team has analyzed twenty samples so far and expects to reach one hundred.
Argentina approved the cultivation of glyphosate-resistant transgenic cotton in the late 1990s and since then its production has become widespread.
The World Health Organization last March cataloged this potent herbicide as "probably carcinogenic to humans", although the National Service for Agrifood Health and Quality (Senasa) maintains its classification as not very dangerous.
In Argentina, around 300 million liters of glyphosate are used per year on 28 million hectares, especially those that produce transgenic soy, the country's main crop.
Last September, Marino's team presented an investigation in which they warned that eight out of 10 fruits and vegetables that arrive on the Argentine table contain at least one agrochemical, mostly insecticides or fungicides.
Over three days, the doctors, scientists, teachers and social and union leaders invited to Congress warned of the health risks posed by the majority agro-industrial model in Argentina and demanded an urgent change.