Occurrence and source apportionment of organic pollutants in deep sediment cores of the Venice Lagoon.
Deep sediment cores
Gas Chromatography/Mass Spectrometry (GC/MS)
Persistent Organic Pollutants (POPs)
Positive Matrix Factorization (PMF)
Source apportionment
Venice Lagoon
Journal
Marine pollution bulletin
ISSN: 1879-3363
Titre abrégé: Mar Pollut Bull
Pays: England
ID NLM: 0260231
Informations de publication
Date de publication:
Mar 2021
Mar 2021
Historique:
received:
28
10
2020
revised:
16
12
2020
accepted:
06
01
2021
pubmed:
7
2
2021
medline:
11
3
2021
entrez:
6
2
2021
Statut:
ppublish
Résumé
In this study, recent and aged inputs of five classes of organic contaminants (i.e. PCBs, OCPs, PCDD/Fs, PAHs, and n-Alkanes) were evaluated in eight deep sediment cores of the Venice Lagoon, collected along the path of a new waterway whose excavation is under evaluation by local authorities, to assess the environmental quality status of the area. Diagnostic indices were calculated for identifying pollutant distribution patterns and their major emission sources, whose relative contribution was quantified by a Positive Matrix Factorization source apportionment model. Sedimentary depth profiles highlighted higher contamination in the top layer, mainly related to ship traffic combustion and vehicular/industrial emissions from the mainland. Nevertheless, a significant level of pollution has been detected also in the deeper layers, probably due to the transport of particulate matter through the aquifers underlying the lagoon seabed. The results underlined the threat posed by the possible resuspension of pollutants in the water column during contaminated sediment dredging.
Identifiants
pubmed: 33548807
pii: S0025-326X(21)00087-4
doi: 10.1016/j.marpolbul.2021.112053
pii:
doi:
Substances chimiques
Air Pollutants
0
Dibenzofurans
0
Environmental Pollutants
0
Particulate Matter
0
Polychlorinated Dibenzodioxins
0
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
112053Informations de copyright
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