Subproject 20

Ecotoxicological Analysis in Sediments

The research will carry out ecotoxicological analyzes of sediment samples collected upstream and downstream from the collapse of the BI Dam at the Córrego Feijão Mine, the following actions will be carried out:

  • RPerform acute and chronic toxicity tests with amphipod Hyalella spp. for samples collected upstream and downstream from the breaking point of Dam I of the “Córrego Feijão” mine;
  • Carry out mutagenicity tests (Ames Test) for samples collected upstream and downstream from the breaking point of Dam I of the “Córrego Feijão” mine;
  • Evaluate the results obtained in relation to the work carried out by the parties involved in the lawsuits (files 5000121-74.2019.8.13.0054, 5010709-36.2019.8.13.0024, 5026408-67.2019.8.13.0024, 5044954-73.2019.8.13.0024) that proceeding before the Court of the 2nd Public Finance Court of the Judicial District of Belo Horizonte, in addition to other environmental monitoring works and scientific studies available.
  • Prepare technical reports (partial and final) containing the results obtained in the proposed ecotoxicological tests with sediment samples and relate them in an integrated manner with results from other subprojects of the Brumadinho UFMG Project (physical-chemical characterization and ecotoxicology of surface waters) and containing an evaluation criticism of the work developed on demand of the aforementioned lawsuits.

 

Methodological Steps

Step 1 - Formalization of the contract, purchases and mobilization of the team working on the project;

Step 2 - Implementation of tests and training of scholarship holders;

Step 3 - Carrying out ecotoxicological tests with sediment samples collected in the Paraopeba River Basin:

                    a) Sample collection: physicochemical characterization, sampling points and sample volume;

                    b) Analysis of acute and chronic toxicity with Hyalella spp;

                    c) Mutagenicity analyses;

                    d) Bacterial reverse mutation test (Ames test - OECD 471) A.

Step 4 - Integrated assessment of results and preparation of reports containing critical analysis of court documents

 

Meet the Team!

Subproject Timeline 23

Month 1 (03/2021)
Month 2
Month 3
Month 4
Month 5
Month 6
Month 7
Month 8
Month 9
Month 10
Month 11
Month 12 (04/2022)

• Formalization of the contract, hiring of scholarship holders and purchases;
• Method implementation with Hyalella spp. and training of fellows;
• Meeting with the surface water and sediment collection team;

• Method implementation with Hyalella spp. and training of fellows;
• Sample receipt forecast;

• Testing ecotoxicological;
• Preparation of partial report;

• Testing ecotoxicological;
• Preparation of partial report;

• Testing ecotoxicological;
• Preparation of partial report;

• Carrying out ecotoxicological tests;
• Preparation of partial report;
• Preparation of partial report

• Testing ecotoxicological;
• Preparation of partial report;

• Testing ecotoxicological;
• Preparation of partial report;

• Testing ecotoxicological;
• Preparation of partial report;

• Testing ecotoxicological;
• Preparation of partial report;
• Preparation of final report;

• Testing ecotoxicological;
• Preparation of final report;

• Report writing end;
• Delivery and Presentation of final report

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