Influence of age on the concentrations of perfluoroalkyl acids (PFAA) in the tissues of perch (Percafluviatilis)
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View abstract on PubMed
Summary
This summary is machine-generated.Per- and polyfluoroalkyl substances (PFAS) accumulate in fish tissues, increasing with age. Consumption of contaminated fish significantly exceeds safe limits, posing a risk to human health.
Area Of Science
- Environmental Science
- Ecotoxicology
- Analytical Chemistry
Background
- Per- and polyfluoroalkyl acids (PFAS) are globally distributed contaminants due to widespread industrial and household use.
- Aquatic ecosystems are critical pathways for PFAS dissemination, with fish serving as key bioindicators.
- Limited data exists on how fish age influences PFAS accumulation in different tissues.
Purpose Of The Study
- To investigate the impact of age on PFAS concentrations in perch (Perca fluviatilis) tissues.
- To identify specific tissues with higher PFAS accumulation in relation to age.
- To assess human health risks associated with consuming PFAS-contaminated perch.
Main Methods
- Analysis of 11 different PFAS compounds in 74 perch samples.
- Quantification of PFAS concentrations in kidney, heart, liver, spleen, gills, and muscle tissues.
- Correlation analysis between fish age and tissue PFAS concentrations.
Main Results
- Mean total PFAS concentrations varied by tissue, with highest levels in kidney (114 μg/kg) and heart (112 μg/kg).
- Longer-chain PFAS and perfluorooctanesulfonic acid (PFOS) were predominant.
- PFAS concentrations significantly increased with perch age in most tissues, particularly kidney, liver, and gills.
- Estimated weekly intake of PFAS from perch consumption exceeded tolerable limits by 860% for adults and 1600% for children.
Conclusions
- Fish age is a significant factor influencing PFAS bioaccumulation in aquatic organisms.
- Perch consumption poses a considerable dietary risk due to high PFAS levels, exceeding regulatory limits.
- Urgent measures are needed to mitigate PFAS contamination in aquatic environments and protect public health.
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