Abstract
The Rio Grande reservoir lies southeast of the Metropolitan Area of São Paulo. In order to evaluate if the sediments contain a historical registration of anthropogenic activity, four sediment cores were sampled from the reservoir. In these cores the Hg concentration was determined by the CV AAS technique, major and trace elements by instrumental neutron activation analysis and the sedimentation rates by the 210Pb method. The results obtained for Hg are much higher than expected, showing an anthropogenic contribution. As a general trend, the elemental concentration decreases with depth, indicating recent contamination.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
F. Campagnoli, III Encontro Nacional de Engenharia de Sedimentos — ENES — Anais da ABRH Associação Brasileira de Recursos Hídricos, 1998, p. 135.
S. R. D. Moreira, F. Campagnoli, B. P. Mazzilli, Datação de Sedimentos do Reservatório Billings pelo Método de Pb-210, V Congresso de Geoquímica dos Países de Língua Portuguesa — VII Congresso Brasileiro de Geoquímica, Porto Seguro, Bahia, Brasil, 1999.
International Atomic Energy Agency, Collection and Preparation of Bottom Sediment Samples for Analysis of Radionuclides and Trace Elements, IAEA-TECDOC 1360, July, 2003.
S. R. D. Moreira, D. I. T. Fávaro, F. Campagnoli, B. P. Mazzilli, Sedimentation rates and metals in sediments from the reservoir Rio Grande — São Paulo/Brazil. Environmental Radiochemical Analysis II, P. Warwick (Ed.), The Royal Society of Chemistry, UK, 2003, p. 383.
National Institute of Standards and Technology, NIST, Certificate of Analysis, Standard Reference Material 2710, Montana Soil, Highly Elevated Trace Element Concentrations, USA, 1993.
National Institute of Standards and Technology, NIST, Certificate of Analysis, Standard Reference Material 2704, Buffalo River Sediment, USA, 1990.
Commission of the European Communities, Community Bureau of Reference — BCR — Certificate of Analysis — CRM 280, Trace Elements in Lake Sediment, Brussels, 1988.
National Institute of Standards and Technology, NIST, Certificate of Analysis, Standard Reference Material 1646a, Estuarine Sediment, USA, 1995.
S. J. Haswell (Ed.), Atomic Absorption Spectroscopy: Theory, Design and Applications, Elsevier, Amsterdam, 1991.
F. E. Larizzatti, D. I. T. Fávaro, S. R. D. Moreira, B. P. Mazzilli, E. L. Piovano, J. Radioanal. Nucl. Chem., 249 (2001) 263.
International Atomic Energy Agency, IAEA, Analytical Quality Control Services (AQCS) Catalogue 2002–2003, p. 35.
K. Govindaraju, Geostand. Newsl. (Special Issue), 19 (1995) 1.
F. Campagnoli, A aplicação do assoreamento na definição de geoindicadores ambientais em áreas urbanas — exemplo na Bacia do Alto Tietê, SP, PhD Thesis, EPUSP, 2002, p. 192.
S. Petri, V. Fulfaro, Bol. Soc. Bras. Geol., 14(1/2) (1965).
Canadian Sediment Quality Guidelines for the Protection of Aquatic Life, Canadian Environmental Quality Guidelines, Summary Tables, http://www.ec.gc.ca/ceqg-rcqe/English/ceqg/sediment/default.cfm
K. H. Wedepohl, Geochim. Cosmochim. Acta, 59 (1995) 1217.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Fávaro, D.I.T., Damatto, S.R., Moreira, E.G. et al. Chemical characterization and recent sedimentation rates in sediment cores from Rio Grande reservoir, SP, Brazil. J Radioanal Nucl Chem 273, 451–463 (2007). https://doi.org/10.1007/s10967-007-6855-2
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10967-007-6855-2