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Heavy metal contamination in the seaweeds of the Venice lagoon
Abstract
The concentrations of heavy metals (Fe, Zn, Cu, Cd, Ni, Pb, Cr, As) were determined in seven seaweeds of environmental and commercial relevance (Ulva rigida C. Ag., Gracilaria gracilis (Stackhouse) Steentoft, L. Irvine and Farnham, Porphyra leucosticta Thuret, Grateloupia doryphora (Montagne) Howe., Undaria pinnatifida (Harv.) Suringar, Fucus virsoides J. Agardh, Cystoseira barbata (Good. et Wood.) Ag.) collected in four sampling sites in the lagoon of Venice, in spring and autumn 1999. Metals were extracted using hot concentrated acids in a Microwave Digestion Rotor and analysed by absorption spectrophotometry using a flame mode for Fe and Zn and a graphite furnace for Pb, Cr, Cd, Cu, Ni and As. High contamination levels, especially for Pb, were detected in Ulva and to a lesser extent in Gracilaria. Brown seaweeds, especially Cystoseira was highly contaminated by As. The least contaminated genera with all metals except As were Porphyra and Undaria. A concentration decrease for Zn and Cd was observed from the inner parts of the central lagoon, close to the industrial district, towards the lagoon openings to the sea.
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“These contaminants derive primarily from anthropogenic sources, including mining effluents, industrial discharges, and urban pollution, and quickly integrate into algae tissues before entering the broader food chain [221,222].”
From Navigating the potential of algal peptides: health effects, market applications, and scientific challenges (2026) · cites this paper as [222]
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Metadata
- Authors
- Caliceti, M., Argese, E., Sfriso, A., & Pavoni, B.
- Affiliations
- Ca' Foscari University of Venice (IT)
- Corresponding author
- Pavoni, B
- Venue
- Chemosphere
- Publisher
- Elsevier BV
- Published
- 2002-04
- Volume
- 47
- Issue
- 4
- Pages
- 443-454
- ISSN
- 0045-6535 (ISSN-L)
- OpenAlex
- W2022139089
- Cited by
- 191
- References
- 50
- Citations by year
- 2026: 7 · 2025: 5 · 2024: 10 · 2023: 12 · 2022: 8 · 2021: 6 · 2020: 9 · 2019: 13 · 2018: 13 · 2017: 12 · 2016: 6 · 2015: 7 · 2014: 4 · 2013: 9 · 2012: 8
- FWCI
- 4.82
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Chemosphere (publishedVersion)
- PubMed (publishedVersion)
- ARCA (Università Ca' Foscari Venezia) (submittedVersion)
- Topics
- Physical Sciences › Environmental Science › Pollution › Heavy metals in environment
- Physical Sciences › Environmental Science › Health, Toxicology and Mutagenesis › Environmental Toxicology and Ecotoxicology
- Physical Sciences › Environmental Science › Water Science and Technology › Heavy Metal Pollution Remediation
- Keywords
- heavy metal contamination, seaweed, Venice Lagoon, Ulva rigida, Gracilaria gracilis, Porphyra leucosticta, Grateloupia doryphora, Undaria pinnatifida, Cystoseira barbata, lead, arsenic, cadmium, copper, zinc, nickel, chromium, spatial distribution, industrial pollution
- MeSH terms
- Environmental Monitoring, Industry, Italy, Seaweed, Spectrophotometry, Atomic, Water Pollutants, Metals, Heavy
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