Toxicity of natural mixtures of organic pollutants in temperate and polar marine phytoplankton
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- 作者：Pedro Echevestea ; 1 ; echevestepedro@gmail.com" class="auth_mail" title="E-mail the corresponding author ; Cristó ; bal Galbá ; n-Malagó ; nb ; c ; Jordi Dachsc ; Naiara Berrojalbizc ; d ; Susana Agustí ; a ; e
- 关键词：POP ; persistent organic pollutant ; PAH ; polycyclic aromatic hydrocarbon ; PCB ; polychlorinated biphenyl ; HCH ; hexachlorocyclohexane ; HCB ; hexachlorobenzene ; PBDE ; polybrominated diphenylether ; SALC ; semivolatile aromatic-like compounds ; GC-ECD ; gas chromatography coupled to an electron capture detector ; GC&ndash ; MS ; gas chromatography coupled to a mass spectrometer ; CTD ; Conductivity ; Temperature ; density ; GFF ; glass fiber filter ; LC ; lethal concentration
- 刊名：Science of the Total Environment
- 出版年：2016
- 出版时间：15 November 2016
- 年：2016
- 卷：571
- 期：Complete
- 页码：34-41
- 全文大小：888 K
文摘
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Toxicity of naturally occurring complex mixtures of organic pollutants (OP) to temperate and polar phytoplankton communities from the Mediterranean Sea, North East Atlantic Ocean and Southern Ocean was tested.
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Toxicity was observed at significantly lower relative concentrations than simple OP mixtures, i.e., as low as 5 fold the oceanic concentrations.
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Overall, smaller sized picocyanobacteria (< 2 μm diameter) of temperate seawaters were the most affected.
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In some cases, larger sized Antarctic phytoplankton (> 20 μm diameter) showed higher sensitivity to OPS than Mediterranean picophytoplankton.
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Results suggest that current concentrations of OPs present in seawater are impacting natural marine phytoplankton communities.