Research by FDA chemist Narong Chamkasem and John Vargo, a chemist at the University of Iowa, shows that residues of glyphosate have been detected at 653 parts per billion (ppb), more than 10 times the limit of 50 ppb allowed in the European Union.
Ucwaningo ngu-FDA chemist uNarong Chamkasem noJohn Vargo, usokhemisi eNyuvesi yase-Iowa, kukhombisa ukuthi izinsalela ze-glyphosate - isithako esiyinhloko se-Roundup herbicide kaMonsanto - itholakale ezingxenyeni ezingama-653 ngezigidigidi, ngaphezu kokuphindwe kayishumi umkhawulo ka-10 ppb ovunyelwe e-European Union.