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Background values, distribution and contamination of metals in the sediments of the Pontevedra Ria (NW Spain)
(Soil & Sediment Contamination, 2007)
Thirty-seven surface sediment samples were taken in the Pontevedra Ria (NW Iberian Peninsula), and metal concentrations (Cd, Co, Cr, Cu, Fe, Ni, Pb, and Zn) and organic/inorganic parameters were determined in order to ...
Urban activity and mercury contamination in estuarine and marine sediments (Southern Brazil)
(2009)
The distribution of mercury in sediments of the Patos Lagoon estuary and nearby coastal marine deposits has been investigated for the period 1998–2008. Polluted urban soils and coastal reclamation fills are the principal ...
Integrated sediment quality assessment in Paranagua Estuarine System, Southern Brazil
(Academic Press Inc. Elsevier B.V., 2009-10-01)
Sediment quality from Paranagua Estuarine System (PES), a highly important port and ecological zone, was evaluated by assessing three lines of evidence: (1) sediment physical-chemical characteristics; (2) sediment toxicity ...
Integrated sediment quality assessment in Paranagua Estuarine System, Southern Brazil
(Academic Press Inc. Elsevier B.V., 2009-10-01)
Sediment quality from Paranagua Estuarine System (PES), a highly important port and ecological zone, was evaluated by assessing three lines of evidence: (1) sediment physical-chemical characteristics; (2) sediment toxicity ...
Levels of metals and toxicity in sediments from a Ramsar site influenced by former mining activities
(Elsevier B.V., 2019-04-30)
This study aimed to evaluate the sediment quality in a Ramsar site located in the Southeast Brazil, by using several lines of evidence (LOEs). Chemical and sedimentological analyses, ecotoxicological tests, and whole ...
Key issues on sediment quality assessment: A review of South American research with emphasis on Brazil
(2007)
Conventional approaches to pollution prevention in South American countries have traditionally relied on scientists identifying potentially harmful substances and practices, and advising regulators concerning exposures and ...
Assessing legacy contaminants in sediments from marine protected areas of the central coast of Sao Paulo (Brazil)
(Inst Oceanografico, Univ Sao Paulo, 2017-10-01)
The presence of legacy contaminants in sediments from three Marine Protected Areas (MPAs) of the coast of Sao Paulo State was evaluated. Four sampling surveys were conducted between 2013 and 2015 in 10 sites, distributed ...
Predicting bioaccessibility of contaminants of emerging concern in marine sediments using chemical methods
(2018-04-01)
Purpose: A comparison was made between three chemical methods to predict bioaccessibility of triclosan (TCS), bisphenol A (BPA), and 17α-ethynylestradiol (EE2) in marine sediments, involving an exchangeable (E) value, ...
Evaluation of the chromium contamination at Ribeirao dos Bagres, Franca (SP), Brazil, by the Pb-210 method
(Elsevier B.V., 2013-12-01)
This paper presents a chronological study focusing the use of Pb-210 in four sediment cores collected at Ribeirao dos Bagres in the region of Franca, Sao Paulo State, Brazil. When evaluating the sedimentation rate by using ...
Effects of dredging operations on sediment quality: contaminant mobilization in dredged sediments from the Port of Santos, SP, Brazil
(Springer Heidelberg, 2009-10-01)
Background, aim, and scope Contaminated sediments are a worldwide problem, and mobilization of contaminants is one of the most critical issues in environmental risk assessment insofar as dredging projects are concerned. ...