We tested the presence of glyphosate in the urine of a farmer who sprayed a glyphosate-based herbicide on his land and to his family, his children were born with birth defects that could cause or promoted by pesticides. Glyphosate - residues were measured in the urine a day before , during , and two days after spraying , by mass spectrometry ion trap chromatogram - PHY - linear liquid . Glyphosate reached a peak of 9.5 mg / L for the farmer after spraying, and 2 mg / L were found in him and one of his children who live at a distance from the field, two days after the spraying. Oral, dermal absorption could explain the differential excretions of pesticides, even in familiar distance from the fields. Following more detailed farming practices and exposures family should be supported along with in - training and recommendations