Ecotoxicological analysis of the Guanabara Bay (RJ) sediment through Bioaccumulation Test and Toxicity Evaluation Identification (TIE) method

• Grant number: 15/13143-0
• Support Opportunities: Scholarships in Brazil - Master
• Start date: October 01, 2015
• End date: January 31, 2017
• Field of knowledge: Engineering - Sanitary Engineering - Basic Sanitation
• Principal Investigator: Denis Moledo de Souza Abessa
• Grantee: Bruno Galvão de Campos
• Host Institution: Instituto de Biociências (IB-CLP). Universidade Estadual Paulista (UNESP). Campus Experimental do Litoral Paulista. São Vicente , SP, Brazil

Abstract

The Guanabara Bay (GB) concentrates approximately 70% of the industries of the State of Rio de Janeiro. The discharges of industrial effluents and residues, together with the domestic sewage, have caused this region to be of the most polluted areas of the Brazilian coast. The present project aims to assess the availability of contaminants from sediments from GB and estimate their toxic effects to the biota. Sediment samples will be collected in four different sites from GB, and will be analyzed for texture, organic matter and CaCO3 contents. Chemical analysis will consist in determination of metals by the Acid-Volatile Sulfides / Simultaneously Extracted Metals (AVS/SEM) approach. Samples will also be tested for both acute and chronic toxicity with the amphipod Tiburonella viscana and the copepod Nitocra sp, respectively. Bioaccumulation tests carried out with the clam Anomalocardia brasiliana. Toxicity Identification and Evaluation (TIE) will be used to determine the causes of toxicity. These lines of evidence will be used into a framework to assess ecological risks in GB, which includes assessing the sediment quality, estimating contaminants bioavailability and toxic potential, and addressing the causes of toxicity. Integration of the produced data will provide information on the ecological risks in GB and will be helpful to stakeholders and decision makers.

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

DE CAMPOS, BRUNO GALVAO; MOREIRA, LUCAS BURUAEM; EUFRASIO PAULY, GUACIRA DE FIGUEIREDO; FEITOSA CRUZ, ANA CAROLINA; MONTE, CHRISTIANE DO NASCIMENTO; DIAS DA SILVA, LILIAN IRENE; DE CASTRO RODRIGUES, ANA PAULA; MACHADO, WILSON; DE SOUZA ABESSA, DENIS MOLEDO. Integrating multiple lines of evidence of sediment quality in a tropical bay (Guanabara Bay, Brazil). Marine Pollution Bulletin, v. 146, p. 925-934, SEP 2019. (13/15482-0, 15/13143-0)

Academic Publications

(References retrieved automatically from State of São Paulo Research Institutions)

CAMPOS, Bruno Galvão de. Ecological risk assessment of metals in sediments of Guanabara Bay (RJ), through a tiered approach based on multiple lines of evidence. 2017. Master's Dissertation - Universidade Estadual Paulista (Unesp). Instituto de Biociências. São Vicente São Vicente.