研究动态
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在意大利南部地中海沿岸滩上滞留的凤头海龟Caretta caretta(林奈,龟科)的盐腺和肝脏中多环芳烃(PAHs)的比较研究。

Comparative study of polycyclic aromatic hydrocarbons (PAHs) in salt gland and liver of loggerhead turtle Caretta caretta (Linnaeus, Cheloniidae) stranded along the Mediterranean coast, Southern Italy.

发表日期:2023 Aug 21
作者: Michele Arienzo, Maria Toscanesi, Mauro Esposito, Doriana Iaccarino, Fabio Di Nocera, Silvia Canzanella, Luciano Ferrara, Gabriella Di Natale, Marco Trifuoggi
来源: ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY

摘要:

从2019年到2021年,我们对意大利南地中海沿岸19只巨爪龟(俗名:凤头海龟,学名:Caretta caretta Linnaeus,品种:Cheloniidae)的肝脏和盐腺中的多环芳烃(PAHs)水平进行了测定。通过气相色谱-质谱联用仪(GC-MS)确定了EPA的16种重点多环芳烃。肝脏中ΣPAHs的平均值为139 ± 55.0,异常高,并且比文献中的数值高出一百倍,而盐腺中的数值更令人担忧,为320 ± 97.6 ng/g(w.w.)。在这两种基质中,萘是导致多环芳烃丰度的主要因素,占ΣPAHs的90.0%和93.7%,突显了岩土源暴露的特点。在盐腺中,尤其是在雌性和成年个体中,NAP的生物富集程度明显高于两倍。多环芳烃的数据丰度突显了新生物性疾病发展的潜在风险,并且人类活动可能严重影响南地中海的C. caretta种群的健康状态。版权所有 © 2023 年作者。Elsevier Inc. 发表。保留所有权利。
The levels of polycyclic aromatic hydrocarbons, PAHs, were determined in the liver and salt gland of 19 loggerhead turtles (Caretta caretta Linnaeus, Cheloniidae) stranded along the coasts of the south Tyrrhenian Sea, Italy, from 2019 to 2021. The 16 EPA's priority PAHs were determined by gas chromatography coupled with mass spectrometry (GC-MS). The average values of ΣPAHs in liver, 139 ± 55.0, were exceptionally high and up to one hundred times those of literature and appeared even more worrying in salt gland, 320 ± 97.6 ng/g, w.w. Naphthalene was the predominant contributor to PAHs richness and accounted for 90.0% and 93.7% of ΣPAHs in the two matrices, highlighting the petrogenic source of exposure. An overall higher bioaccumulation of NAP, more than two-fold, was detected in salt gland and especially in female and adults. Data of PAHs richness highlighted a potential risk of neoplastic disease development and that anthropogenic activities may seriously impair healthy state conditions of C. caretta. populations in south Tyrrhenian Sea.Copyright © 2023 The Authors. Published by Elsevier Inc. All rights reserved.