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Tytuł:
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Emerging contaminants (Rh, Pd, and Pt) in surface sediments from a Brazilian subtropical estuary influenced by anthropogenic activities.
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Autorzy:
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Berbel GBB; Laboratory of Biogeochemistry of Nutrients, Macronutrients and Tracers in the Oceans (LABNUT-IOUSP), Oceanographic Institute of University of São Paulo, Praça do Oceanográfico, 191, 05508-120 Cidade Universitária, São Paulo, Brazil. Electronic address: .
Hortellani MA; Laser and Applications Center (CELAP) - (IPEN/CNEM), Nuclear and Energy Research Institute (IPEN), Avenida Lineu Prestes, 2242, 05508-000 Cidade Universitária, São Paulo, Brazil.
Sarkis JES; Laser and Applications Center (CELAP) - (IPEN/CNEM), Nuclear and Energy Research Institute (IPEN), Avenida Lineu Prestes, 2242, 05508-000 Cidade Universitária, São Paulo, Brazil.
Chiozzini VG; Laboratory of Biogeochemistry of Nutrients, Macronutrients and Tracers in the Oceans (LABNUT-IOUSP), Oceanographic Institute of University of São Paulo, Praça do Oceanográfico, 191, 05508-120 Cidade Universitária, São Paulo, Brazil.
Fávaro DIT; Neutron Activation Analysis Laboratory (LAN), Nuclear and Energy Research Institute (IPEN), Avenida Lineu Prestes, 2242, 05508-000 Cidade Universitária, São Paulo, Brazil.
Sutti BO; Laboratory of Biogeochemistry of Nutrients, Macronutrients and Tracers in the Oceans (LABNUT-IOUSP), Oceanographic Institute of University of São Paulo, Praça do Oceanográfico, 191, 05508-120 Cidade Universitária, São Paulo, Brazil.
Sakazaki NC; Laboratory of Biogeochemistry of Nutrients, Macronutrients and Tracers in the Oceans (LABNUT-IOUSP), Oceanographic Institute of University of São Paulo, Praça do Oceanográfico, 191, 05508-120 Cidade Universitária, São Paulo, Brazil.
de Santis Braga E; Laboratory of Biogeochemistry of Nutrients, Macronutrients and Tracers in the Oceans (LABNUT-IOUSP), Oceanographic Institute of University of São Paulo, Praça do Oceanográfico, 191, 05508-120 Cidade Universitária, São Paulo, Brazil.
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Źródło:
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Marine pollution bulletin [Mar Pollut Bull] 2021 Feb; Vol. 163, pp. 111929. Date of Electronic Publication: 2020 Dec 24.
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Typ publikacji:
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Journal Article
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Język:
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English
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Imprint Name(s):
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Publication: 2003- : Oxford : Elsevier
Original Publication: London, Macmillan.
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MeSH Terms:
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Platinum*/analysis
Rhodium*/analysis
Brazil ; Environmental Monitoring ; Estuaries ; Palladium/analysis
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Contributed Indexing:
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Keywords: Autocatalyst; Coastal pollution; Industrial pole; Platinum group elements; Sediment contamination
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Substance Nomenclature:
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49DFR088MY (Platinum)
5TWQ1V240M (Palladium)
DMK383DSAC (Rhodium)
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Entry Date(s):
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Date Created: 20201228 Date Completed: 20210217 Latest Revision: 20210217
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Update Code:
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20240105
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DOI:
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10.1016/j.marpolbul.2020.111929
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PMID:
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33360726
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The concentrations of Platinum (Pt), Rhodium (Rh) and Palladium (Pd) were evaluated from a highly impacted estuary in Brazil influenced by industrial pole, highway traffic and sewage outfall. The Santos-São Vicente region presents important economic activities derived from a largest harbor of Latin America and an industrial pole surrounded by intensive highway traffic. Values of Rh varied from 0.08 to 1.7 ng g -1 with highest values at stations impacted by domestic waste. Pt ranged from 0.15 to 40.3 ng g -1 with highest concentrations located close to the ferryboat traffic. Pd levels varied from 1.05 to 22.0 ng g -1 with values >5 ng g -1 in 50% of the stations. The spatial distribution of PGEs was not always directly associated with muddy sediments, because high PGE levels found even in sandy sediments. Pollution indexes, including anthropogenic factor (AF), geoaccumulation index (I geo ), Enrichment factor (EF), and Pollution Load Index (PLI) were used for evaluating contaminant potential. Based on EF, Igeo, and PLI, 50% of samples of the sediments from Santos-São Vicente Estuarine System (SSV) were classified with significant to strong PGE contamination. All stations on the Santos Channel (SC), São Vicente Channel (SVC) and Bertioga Channel (BC) had AF higher than 80% in at least one of PGE elements, as showed in station 2A, which presented AF <50% for Rh and Pd and 86% for Pt. Despite high anthropogenic enrichment, no correlations among PGE elements were observed in surface sediments. Only two stations presented Pd/Pt, Pt/Rh, and Pd/Rh typical ratios of auto catalyst (st. 14 and Piaçaguera) both located in the vicinity of highways. This could be due to the PGE deposition process in road dust, soil, and water as well as the biogeochemical cycling of PGEs involving organic metallic and inorganic complexes formed in the estuarine and seawaters.
(Copyright © 2020 Elsevier Ltd. All rights reserved.)
