期刊
ENVIRONMENTAL POLLUTION
卷 236, 期 -, 页码 824-834出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.envpol.2018.02.018
关键词
Climate change; Marine environment; Emerging contaminants; Bioconcentration
资金
- European Union Seventh Framework Programme under the ECsafeSEAFOOD project [311820]
- Economy and Knowledge Department of the Catalan Government through Consolidated Research Group [ICRA-ENV 2017 SGR 1124, 2017-SGR-1404]
- FI-DGR research fellowship from the Catalan Government [2016FI_B00601]
- Ramon y Cajal program [RYC-2014-16707]
- Portuguese Foundation for Science and Technology [SFRH/BD/103569/2014]
Warming and acidification are expected impacts of climate change to the marine environment. Besides, organisms that live in coastal areas, such as bivalves, can also be exposed to anthropogenic pollutants like pharmaceuticals (PhACs) and endocrine disrupting compounds (EDCs). In this study, the effects of warming and acidification on the bioconcentration, metabolization and depuration of five PhACs (sotalol, sulfamethoxazole, venlafaxine, carbamazepine and citalopram) and two EDCs (methylparaben and triclosan) were investigated in the mussel species (Mytilus galloprovincialis), under controlled conditions. Mussels were exposed to warming and acidification, as well as to the mixture of contaminants up to 15.7 mu g L-1 during 20 days; followed by 20 days of depuration. All contaminants bioconcentrated in mussels with levels ranging from 1.8 a mu g kg(-1) dry weight (dw) for methylparaben to 12889.414 mu g kg(-1) dw for citalopram. Warming increased the bioconcentration factor (BCF) of sulfamethoxazole and sotalol, whereas acidification increased the BCF of sulfamethoxazole, sotalol and methylparaben. In contrast, acidification decreased triclosan levels, while both stressors decreased venlafaxine and citalopram BCFs. Warming and acidification facilitated the elimination of some of the tested compounds (i.e. sotalol from 50% in control to 60% and 68% of elimination in acidification and warming respectively). However, acidification decreased mussels' capacity to metabolize contaminants (i.e. venlafaxine). This work provides a first insight in the understanding of aquatic organisms' response to emerging contaminants pollution under warming and acidification scenarios. (C) 2018 Elsevier Ltd. All rights reserved.
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