Tissue distribution of perfluoroalkyl acids and health status in wild Mozambique tilapia (Oreochromis mossambicus) from Loskop Dam, Mpumalanga, South Africa.

Autor: Bangma JT; Medical University of South Carolina, Department of Obstetrics and Gynecology, Charleston, SC 29412, United States., Reiner JL; National Institute of Standards and Technology, Chemical Sciences Division, Hollings Marine Laboratory, Charleston, SC 29412, United States., Botha H; Department of Biodiversity, University of Limpopo, Sovenga, South Africa; Scientific Services, Mpumalanga Tourism and Parks Agency, Nelspruit 1200, South Africa., Cantu TM; Medical University of South Carolina, Department of Obstetrics and Gynecology, Charleston, SC 29412, United States., Gouws MA; Department of Science, School of Natural Resource Management, Nelson Mandela Metropolitan University, George 6529, South Africa., Guillette MP; Medical University of South Carolina, Department of Obstetrics and Gynecology, Charleston, SC 29412, United States., Koelmel JP; University of Florida, Department of Chemistry, Gainesville, FL 32611, United States., Luus-Powell WJ; Department of Biodiversity, University of Limpopo, Sovenga, South Africa., Myburgh J; Department of Paraclinical Sciences, Faculty of Veterinary Science, University of Pretoria, Onderstepoort, South Africa., Rynders O; Department of Science, School of Natural Resource Management, Nelson Mandela Metropolitan University, George 6529, South Africa., Sara JR; Department of Biodiversity, University of Limpopo, Sovenga, South Africa., Smit WJ; Department of Biodiversity, University of Limpopo, Sovenga, South Africa., Bowden JA; National Institute of Standards and Technology, Chemical Sciences Division, Hollings Marine Laboratory, Charleston, SC 29412, United States. Electronic address: john.bowden@nist.gov.
Jazyk: angličtina
Zdroj: Journal of environmental sciences (China) [J Environ Sci (China)] 2017 Nov; Vol. 61, pp. 59-67. Date of Electronic Publication: 2017 Apr 28.
DOI: 10.1016/j.jes.2017.03.041
Abstrakt: This study examined concentrations of 15 perfluoroalkyl acids (PFAAs) in tissues from male Mozambique tilapia (Oreochromis mossambicus) collected at Loskop Dam, Mpumalanga, South Africa in 2014 and 2016. Nine of the 15 PFAAs were detected frequently and were included in statistical analysis and included two of the most commonly known PFAAs, perfluorooctanesulfonic acid (PFOS) (median, 41.6ng/g) and perfluorooctanoic acid (PFOA) (median, 0.0825ng/g). Of the tissues measured, plasma (2016 and 2014 median, 22.2ng/g) contained the highest PFAA burden followed by (in descending order): liver (median, 11.6ng/g), kidney (median, 9.04ng/g), spleen (median, 5.92ng/g), adipose (median, 2.54ng/g), and muscle (median, 1.11ng/g). Loskop Dam tilapia have been affected by an inflammatory disease of the adipose tissue known as pansteatitis, so this study also aimed to investigate relationships between PFAA tissue concentrations and incidence of pansteatitis or fish health status. Results revealed that healthy tilapia exhibited an overall higher (p-value<0.05) PFAA burden than pansteatitis-affected tilapia across all tissues. Further analysis showed that organs previously noted in the literature to contain the highest PFAA concentrations, such as kidney, liver, and plasma, were the organs driving the difference in PFAA burden between the two tilapia groups. Care must be taken in the interpretations we draw from not only the results of our study, but also other PFAA measurements made on populations (human and wildlife alike) under differing health status.
(Copyright © 2017. Published by Elsevier B.V.)
Databáze: MEDLINE
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