http://www.cnr.it/ontology/cnr/individuo/prodotto/ID6312
Influence of chemical parameters (heavy metal, organic matter, sulphur and nitrogen) on toxicity of sediments from the Mar Piccolo (Taranto, Ionian Sea, Italy) (Articolo in rivista)
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- Influence of chemical parameters (heavy metal, organic matter, sulphur and nitrogen) on toxicity of sediments from the Mar Piccolo (Taranto, Ionian Sea, Italy) (Articolo in rivista) (literal)
- Anno
- 2005-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1016/j.microc.2004.10.005 (literal)
- Alternative label
CALACE N., CIARDULLO S., PETRONIO B.M., PIETRANTONIO M., ABBONDANZI F., CAMPISI T., CARDELLICCHIO N. (2005)
Influence of chemical parameters (heavy metal, organic matter, sulphur and nitrogen) on toxicity of sediments from the Mar Piccolo (Taranto, Ionian Sea, Italy)
in Microchemical journal (Print); Academic Press Elsevier, Amsterdam (Paesi Bassi)
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- CALACE N., CIARDULLO S., PETRONIO B.M., PIETRANTONIO M., ABBONDANZI F., CAMPISI T., CARDELLICCHIO N. (literal)
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- http://www.journals.elsevier.com/microchemical-journal/ (literal)
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- CNR - Istituto Ambiente Marino Costiero
Dipartimento di Chimica - Università La Sapienza - Roma (literal)
- Titolo
- Influence of chemical parameters (heavy metal, organic matter, sulphur and nitrogen) on toxicity of sediments from the Mar Piccolo (Taranto, Ionian Sea, Italy) (literal)
- Abstract
- We studied the influence of heavy metals, organic matter (subdivided into humic compounds and not humified organic matter which
represents all organic matter fractions except for humic and fulvic acids), total sulphur and nitrogen content on the toxicity of sediments from
the Mar Piccolo, a semienclosed basin located near the city of Taranto (Southern Italy). In sediments, we found high level of total lead and
zinc concentration but a very low bavailable metal concentrationQ, that consists in the metal fraction extractable into MgCl2 solution at pH 7,
for all heavy metals. Moreover, cluster analysis pointed to a common source of organic matter, sulphur, nitrogen, lead, copper, zinc and
mercury. As regards the ecotoxicological results, sediments were found to be characterized by a number of toxic units (T.U.) ranging from
1305 to 3693 T.U., indicating a medium/high toxicity level.
Multiple linear regression analysis carried out using available lead, nickel and manganese concentrations, as well as sulphur and nonhumic
carbon as independent variables and toxicity units as the dependent variable, accounted for a good percentage of the total variance of
data (R2=91%). Nevertheless, sulphur and not humic carbon were the only significant components ( p-value: 0.022 and 0.023, respectively). (literal)
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