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Study of the influence of different organic pollutants on Cu accumulation by Halimione portulacoides

Title
Study of the influence of different organic pollutants on Cu accumulation by Halimione portulacoides
Type
Article in International Scientific Journal
Year
2009
Authors
Marisa M R Almeida
(Author)
Other
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Dias, AC
(Author)
Other
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Mucha, AP
(Author)
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Adriano Bordalo
(Author)
ICBAS
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Vasconcelos, MTSD
(Author)
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Journal
Vol. 85
Pages: 627-632
ISSN: 0272-7714
Publisher: Elsevier
Other information
Authenticus ID: P-003-DKE
Abstract (EN): The influence of each of four organic pollutants selected from among those commonly found in coastal areas, 1,1-dichloro-2,2-bis(p-chlorophenyl) ethylene (DDE), monobutyltin (MBT), Triton X-100 and polycyclic aromatic hydrocarbons (PAHs), on Cu accumulation by Halimione portulacoides was investigated. Experiments were carried out in a laboratory setting, either in hydroponics (sediment elutriate) or in a salt marsh sediment (Cavado River, NW Portugal) soaked in elutriate. Groups of H. portulacoides were exposed to media for 6 days spiked with 10 mg/L Cu(II) and with one of the selected pollutants, at an environmentally realistic concentration. DDE and MBT did not cause any major change on Cu accumulation by H. portulacoides, whereas PAHs slightly increased accumulation only in hydroponics i.e. in the absence of sediment. On the other hand, the non-ionic surfactant Triton X-100 markedly favoured Cu accumulation on plant roots both in the presence and absence of sediment. The addition of DDE, MBT and Triton X-100 also favoured Cu solubility from sediments. Therefore, the simultaneous presence of pollutants from different nature (inorganic and organic) in the estuarine environment may result in a composition of water column, pore water, sediment or biota different of that expected considering the effect of each individual pollutant.
Language: English
Type (Professor's evaluation): Scientific
No. of pages: 6
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