Study: https://web.archive.org/web/20180908000413/http://repositorio.ufpi.br/xmlui/handle/123456789/1366
Author(s): Lima, I.P.
Article Type: Study
Record ID: 2411
Abstract: Glyphosate is a herbicide with the greatest potential risk to human health because it is the most commercialized in the world, in Brazil and in State of Piauí. Based on this reality, this study aimed to evaluate the contamination of maternal milk by glyphosate agrotoxic in puerperas attended at public maternity hospitals in Piauí. We adopted a descriptive correlational study of cross-sectional applied in the municipalities of Teresina with 164 participants, Oeiras with 27 and Uruçuí with 13 participants. We developed a method of laboratory analysis of the samples of breast milk applied to the technique of high-performance liquid chromatography coupled photodiode detector array, through the derivatization reaction of glyphosate and its metabolite aminomethylphosphonic acid by 9-fluorenylmethyl chloroformate. After experimental tests the chosen method for the analysis of the samples of breast milk was the isocratic gradient using the acetonitrile solvent to 10%. It was tested in triplicate and when passing through the detector we verified the presence of glyphosate and aminomethylphosphonic acid in chromatographic peaks in the range of 263 nanometers (nm), with correlation coefficient (r) equal to 0.9993, which led to the construction of the calibration curve and confirmation of its efficiency and linearity. Analysis of breast milk samples was limited to the detection of both substances. A total of 62.5% of the samples collected in Oeiras and Uruçuí were analyzed, where we detected presence of glyphosate or aminomethylphosphonic acid in 64% of them. When disaggregating by municipality, contamination was verified in 46.1% and 83.4% of samples analyzed from Oeiras and Uruçuí, respectively. We concluded this study showing the high contamination of the breast milk by glyphosate agrotoxic, proving its severity and importance as a risk factor for the woman’s health.
Keywords: Glyphosate exposure, Glyphosate, herbicide, aminomethylphosphonic acid, breast milk, contamination, women’s health
Citation: Lima, I.P., 2018. Avaliação da contaminação do leite materno pelo agrotóxico glifosato em puérperas astendidas em maternidades públicas do piauí.
