http://www.cnr.it/ontology/cnr/individuo/prodotto/ID49246

Pollution historical trends as recorded by sediments at selected sites of the Venice Lagoon (Articolo in rivista)

Type

Prodotto della ricerca (Classe)
Articolo in rivista (Classe)

Label

Pollution historical trends as recorded by sediments at selected sites of the Venice Lagoon (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.envint.2005.05.011 (literal)

Alternative label

Frignani M. (a), Bellucci L.G. (a), Favotto M. (b), Albertazzi S. (a) (2005)
Pollution historical trends as recorded by sediments at selected sites of the Venice Lagoon
in Environment international
(literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

Frignani M. (a), Bellucci L.G. (a), Favotto M. (b), Albertazzi S. (a) (literal)

Pagina inizio

1011 (literal)

Pagina fine

1022 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#altreInformazioni

http://dx.doi.org/10.1016/j.envint.2005.05.011 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

31 (literal)

Rivista

Environment international (Rivista)

Note

ISI Web of Science (WOS) (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

(a) Consiglio Nazionale delle Ricerche, Istituto di Scienze Marine-Sezione di Geologia Marina, Via Gobetti, 101, 40129 Bologna, Italy (b) Consorzio Interuniversitario Nazionale La Chimica per l'Ambiente-Via della Libertà 5/12, 30175 Marghera (VE), Italy (literal)

Titolo

Pollution historical trends as recorded by sediments at selected sites of the Venice Lagoon (literal)

Abstract

Polychlorinated biphenyls (PCBs), dibenzo-p-dioxins (PCDDs), dibezofurans (PCDFs) and hexaclorobenzene (HCB) were determined in three sediment cores of the Venice Lagoon: I1, from the San Giuliano Canal that is likely the main source of pollutants for the study area; E, representing the lagoon sediment of the zone of Campalto; and M3, typical of a salt marsh environment and mostly subject to atmospheric inputs. Maximum concentrations were found in core I1: 25-1858 ngl-TE kg-1 (kg to the minus 1)(PCDD/fs), 1.7-13 micrograms kg-1 (kg to the minus 1)(HCB), and 107 - 717 micrograms kg-1 (kg to the minus 1) (PCBs) are surficial and peak values, respectively. The lagoon sediment (E), is much less contaminated: 24-47 ngl-TE kg-1 (kg to the minus 1) for PCDD/Fs, 2.3-3.6 micrograms kg-1 (kg to the minus 1) for HCB, and 56-203 micrograms kg-1 (kg to the minus 1) for PCBs whereas M3 shows the lowest values: 1.6-6.0 ngl-TE kg-1 (kg to the minus 1)for PCDDs/Fs, 0.3-0.6 micrograms kg-1(kg to the minus 1)for HCB, and 7.1-39 micrograms kg-1 (kg to the minus 1) for PCBs. In any case, the recent trend is toward a decrease of pollutant concentration. The chronology of cores E and M3 is based on both Pb-210 and Cs-137 activity depth profiles. The maximum concnetrations of PCDD/Fs, HCB, and PCBs correspond to the years 1949, 1980, and 1968, respectively. The homologue profiles of PCDD/Fs confirm that I1 has been subject to an industrial source while the other sites also recorded significant contributions, changing over time, of octa-chlorinated dioxin from combustion. a comparison of the pollutatn invetories, all normalised to PB-210 invetories, suggests that the atmospheric contribution to the contamination of the area of Campalto is low: the upper limits range from 6% (PCDD/Fs) to 17% (HCB). (literal)

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