PCDD/Fs in sediments of Central Vietnam coastal lagoons: In search of TCDD (Articolo in rivista)

Type
Label
  • PCDD/Fs in sediments of Central Vietnam coastal lagoons: In search of TCDD (Articolo in rivista) (literal)
Anno
  • 2010-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/j.marpolbul.2010.09.023 (literal)
Alternative label
  • Piazza, R (a,b); Giuliani, S (c); Bellucci, LG (c); Mugnai, C (c), Nguyen HC (d), Dang HN (d), Vecchiato M (a), Romano S (c), Frignani M (c) (2010)
    PCDD/Fs in sediments of Central Vietnam coastal lagoons: In search of TCDD
    in Marine pollution bulletin.
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Piazza, R (a,b); Giuliani, S (c); Bellucci, LG (c); Mugnai, C (c), Nguyen HC (d), Dang HN (d), Vecchiato M (a), Romano S (c), Frignani M (c) (literal)
Pagina inizio
  • 2303 (literal)
Pagina fine
  • 2310 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 60 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • (a) University Ca' Foscari, Dorsoduro 2137, 30123 Venice, Italy (b) CNR-Istituto per la Dinamica dei Processi Ambientali, Dorsoduro 2137, 30123 Venezia, Italy (c) CNR-Istituto di Scienze Marine, Via Gobetti 101, 40129 Bologna, Italy (d) Institute for Marine Environment and Resources, 246 Da Nang Street, Haiphong City, Viet Nam (literal)
Titolo
  • PCDD/Fs in sediments of Central Vietnam coastal lagoons: In search of TCDD (literal)
Abstract
  • Samples from nine Central Vietnam coastal lagoons, together with three soils and sediments collected in two freshwater reservoirs of the Thua Thien-Hué province, were analysed for polychlorinated dibenzo-pdioxins and dibenzofurans (PCDD/Fs). Total concentrations are low, from 192 to 2912 pg g?1 and depth profiles in Tam Giang-Cau Hai (TG-CH) sediment cores show only minor changes over time in PCDD/F input and composition. Octachloro dibenzo-p-dioxin (OCDD) is the prevailing congener (approximately 90%), indicating combustion as the main PCDD/F source to these coastal systems, whereas natural formation might be partly responsible for the presence at depth. 2,3,7,8-Tetrachloro dibenzo-p-dioxin (TCDD), largely sprayed together with Agent Orange over the study areas during the war (1961-1971), is absent or very low. This result supports the hypothesis of strong degradation soon after spraying. Multivariate statistical analyses account for the presence of local, short-range sources as observed in the northern part of the TG-CH lagoon. (literal)
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