| Title | Influence of chemical parameters (heavy metal, organic matter, sulphur and nitrogen) on toxicity of sediments from the Mar Piccolo (Taranto, Ionian Sea, Italy) |
| 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). |
| Source | Microchemical journal (Print) 79 (1-2), pp. 243–248 |
| Keywords | Heavy metalssedimentsMicrotoxR testMar Piccolo |
| Journal | Microchemical journal (Print) |
| Editor | Academic Press [etc.], New York,, Stati Uniti d'America |
| Year | 2005 |
| Type | Articolo in rivista |
| DOI | 10.1016/j.microc.2004.10.005 |
| Authors | CALACE N., CIARDULLO S., PETRONIO B.M., PIETRANTONIO M., ABBONDANZI F., CAMPISI T., CARDELLICCHIO N. |
| Text | 6312 2005 10.1016/j.microc.2004.10.005 ISI Web of Science WOS 000226907100039 Heavy metals sediments MicrotoxR test Mar Piccolo Influence of chemical parameters heavy metal, organic matter, sulphur and nitrogen on toxicity of sediments from the Mar Piccolo Taranto, Ionian Sea, Italy CALACE N., CIARDULLO S., PETRONIO B.M., PIETRANTONIO M., ABBONDANZI F., CAMPISI T., CARDELLICCHIO N. CNR Istituto Ambiente Marino Costiero Dipartimento di Chimica Universita La Sapienza Roma 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 . 79 http //www.journals.elsevier.com/microchemical journal/ Articolo pubblicato Rivista internazionale con IF microchemical_card.pdf Articolo in rivista Academic Press etc. 0026 265X Microchemical journal Print Microchemical journal Print Microchemical journal. Print nicola.cardellicchio CARDELLICCHIO NICOLA TA.P02.007.002 Influenza delle deposizioni atmosferiche sul ciclo biogeochimico di IPA e metalli tossici Hg in ecosistemi marini |
