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RESEARCH PRODUCT

Perfluoroalkyl substances in Breast milk, infant formula and baby food from Valencian Community (Spain)

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description

Environmental and human exposures to perfluoroalkyl substances (PFASs) are of emerging concern since they are persistent and bioaccumulative. The present study reports PFASs levels in human milk, infant formulas and baby food (dry cereals and pots) from the Valencian Community (Spain) in order to evaluate the infant exposure to these substances through the diet. The results show that perfluorobutanoic acid (PFBA) and perfluorooctanoic acid (PFOA) were in all the samples of the four selected matrices (except PFOA in one sample of dry cereal baby food). Perfluoroheptanoic acid (PFHpA) and perfluorodecanoic acid (PFDA) were also detected in 70% of the breast milk samples. In infant formulas, PFDA and perfluorooctanesulfonate (PFOS) were detected in 75% and 69%, respectively. In dry cereals baby food, PFBA was in 100% of the samples while PFOA and PFOS in 92%. In baby food pots, PFDA was also detected in 83% of the samples. Estimated daily intakes (EDIs) of PFOA (maximum 32.2 ng kg day) and PFOS (9.0 ng kg day) are lower than tolerable daily intakes (TDIs) established for PFOA (1500 ng kg day) and PFOS (150 ng kg day).