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Serum concentrations of perfluorinated compounds among children living in Sicily (Italy)
Caterina Ledda1, Giuseppe La Torre2, Diana Cinà3
1Occupational Medicine, Departiment of Clinical and Experimental Medicine, University of Catania, Catania, Italy; Department of Public Health and Infection Disease, Sapienza University of Rome, Rome, Italy.
Insights
Children in Sicily are widely exposed to per- and polyfluoroalkyl substances (PFAS), including PFOS and PFOA. This study highlights potential health risks in children due to this widespread environmental contamination.
Area of Science:
- Environmental Health
- Toxicology
- Pediatrics
Background:
- Per- and polyfluoroalkyl substances (PFAS) are man-made chemicals with a fluorinated carbon chain and a hydrophilic head.
- PFAS exposure is linked to adverse health effects across multiple organ systems.
- Children's developing bodies may be particularly vulnerable to the toxic effects of PFAS.
Purpose of the Study:
- To assess the serum concentrations of 16 PFAS in children living in Sicily.
- To investigate potential correlations between PFAS levels and demographic factors.
- To underscore the need for monitoring and addressing PFAS health impacts in pediatric populations.
Main Methods:
- Medical examinations and routine blood/urine tests were conducted on 61 children aged 6-11 years.
- Serum concentrations of 16 specific PFAS were quantified.
- Statistical analyses explored associations between PFAS levels and maternal parity, breastfeeding duration, and gender.
Main Results:
- All children exhibited detectable levels of PFAS, with a mean total concentration (∑PFCs) of 5.888 ng/mL.
- Perfluorooctane sulfonate (PFOS), perfluorooctanoic acid (PFOA), perfluorohexanesulfonate (PFHxs), and perfluorodecanoic acid (PFDA) were among the most prevalent.
- Correlations were observed between long-chain and short-chain PFAS, maternal parity, breastfeeding duration, and gender.
Conclusions:
- Widespread PFAS exposure is evident in Sicilian children, necessitating attention to potential health risks during critical developmental stages.
- Maternal parity, breastfeeding, and gender may influence PFAS accumulation in children.
- Further research is crucial to monitor and mitigate the adverse health outcomes associated with PFAS exposure in children, particularly in industrial areas.
Abstract:
Perfluorinated compounds (PFCs) are a large group of man-made chemicals characterized by a completely fluorinated hydrophobic linear carbon chain attached to a hydrophilic head. The presence of PFCs has been related with various adverse effects on several organs and systems. 61 children (6-11 years of age) living in Sicily underwent medical examination and blood and urine routinary tests, as well as the serum concentration of 16 PFCs. These compounds (∑PFCs = 5.888 ng/mL, range 1.035-12.94 ng/mL) were widely detected in the samples of all children, showing that they had been extensively exposed to PFCs, especially perfluorooctane sulfonate (PFOS), perfluorooctanoic acid (PFOA), perfluorohexanesulfonate (PFHxs) and perfluorodecanoic acid (PFDA). In addition, long-chained PFCs were found in children's blood correlated with short-chained ones. Perfluorodecanoic acid (PFDA) (beta=-0.114) and PFHxS (beta = 0.003) levels were correlated with maternal parity; while the "months of breastfeeding" variable is correlated with perfluoroundecanoic acid (PFUnDA) concentrations (beta = 0.008). Female gender is negatively associated with PFOS (beta = 0.008). The adverse health effects of PFCs on young children should be noted, due to their growing phase. Therefore, further studies are needed to monitor and address adverse health outcomes of PFCs on children, especially those living in industrial regions.
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