Superficial sediments and settling material collected in Buenos Aires coastal area were analyzed to evaluate the accumulation and sources of trace metals. Residual elements showed homogeneous sedimentary concentrations (Fe: 23,846 ± 4,367; Ni: 10 ± 2.7; Mn: 706 ± 314 μg g−1) whereas anthropogenic metals presented exponentially decreasing offshore gradients (Zn: 98 ± 69; Cr: 28 ± 21; Cu: 19 ± 15; Pb: 18 ± 13 μg g−1). Anthropogenic impact was evaluated through metal-Fe relationships, Fe-normalized enrichment factors and sediment quality guidelines. The slopes of metal-Fe regressions from background sites were comparable to upper crust metal ratios, excepted Cr which is impoverished, and Mn which is diagenetically enriched. Metal-Fe relationships also hold for most 2.5 km offshore sites but with higher slopes denoting human influence, and are completely lost in 1–2.5 km sediments and trap material which plot over the regressions and exceed sediment quality guidelines.
This is a preview of subscription content, log in to check access.
Buy single article
Instant access to the full article PDF.
Price includes VAT for USA
Subscribe to journal
Immediate online access to all issues from 2019. Subscription will auto renew annually.
This is the net price. Taxes to be calculated in checkout.
Abessa DMS, Carr RS, Rachid BRF, Sousa ECPM, Hortelani MA, Sarkis JE (2005) Influence of a Brazilian sewage outfall on the toxicity and contamination of adjacent sediments. Mar Pollut Bull 50:875–885
Bilos C, Colombo JC, Rodriguez Presa MJ (1998) Trace metals in Suspended particles, sediments and asiatic clams (Corbicula fluminea) of the Río de la Plata Estuary, Argentina. Environ Pollut 99:1–11
Blaser P, Zimmermann S, Luster J, Shotyk W (2000) Critical examination of trace element enrichments and depletions in soils: As, Cr, Cu, NI, Pb, and Zn in Swiss forest soils. Sci Total Environ 249:257–280
Bothner MH, Casso MA, Rendigs RR, Lamothe PJ (2002) The effect of the new Masachusetts Bay sewage outfall on the concentrations of metals and bacterial spores in nearby bottom and suspended sediments. Mar Pollut Bull 44:1063–1070
CCME (Canadian Council of Ministers of the Environments) (2001) Canadian sediment quality guidelines for the protection of aquatic life: Summary tables. In: Canadian environmental quality guidelines, 1999, Canadian Council of Ministers of the Environments, Winnipeg
Chapman PM, Paine MD, Arthur AD, Taylor LA (1996) A triad study of sediment quality associated with a major, relatively untreated marine sewage discharge. Mar Pollut Bull 32:47–64
Colombo JC, Cappelletti N, Barreda A, Migoya MC, Skorupka CN (2005) Vertical fluxes and accumulation of PCBs in coastal sediments of the Río de la Plata estuary, Argentina. Chemosphere 61:1345–1357
Colombo JC, Cappelletti N, Speranza E, Migoya MC, Lasci J, Skorupka CN (2007) Vertical fluxes and organic composition of settling material from the sewage impacted Buenos Aires coastal area, Argentina. Org Geochem 38:1941–1952
Framiñan MB, Etala MP, Acha EM, Guerrero RA, Lasta CA, Brown OB (1998) Physical characteristics and proceses of the Río de la Plata estuary. In: Piccolo MC, Pino-Quivira M, Perillo GME (eds) Estuaries of South America, their geomorphology and dynamics. Springer, Berlin, pp 161–194
Matthai C, Birch GF (2000) Trace metals and organochlorines in sediments near a major ocean outfall on a high energy continental margin (Sydney, Australia). Environ Pollut 110:411–423
Reimann C, de Caritat P (2005) Distinguishing between natural and anthropogenic sources for elements in the environment: regional geochemical surveys versus enrichment factors. Sci Total Environ 337:91–107
Salomons W, Förstner U (1984) Metals in the hydrocycle. Springer-Verlag, Berlin
Soto-Jiménez M, Páez-Osuna F, Morales-Hernández F (2001) Selected trace metals in oysters (Crassostrea iridescens) and sediments from the discharge zone of the submarine sewage outfall in Mazatlán Bay (southeast Gulf of California): chemical fractions and bioaccumulation factors. Environ Pollut 114:357–370
Wedepohl KH (1995) The composition of the continental crust. Geochim Cosmochim Acta 59:1217–1232
Financial support was provided by the National Research Council (CONICET) and the Research Commission from Buenos Aires State (CIC).
About this article
Cite this article
Tatone, L.M., Bilos, C., Skorupka, C.N. et al. Vertical Fluxes and Accumulation of Trace Metals in Superficial Sediments of the Río de la Plata Estuary, Argentina. Bull Environ Contam Toxicol 83, 913 (2009). https://doi.org/10.1007/s00128-009-9878-2
- Heavy metals
- Coastal sediments
- Settling particles
- Río de la Plata