QUANTIFICATION OF HEAVY METALS AND ANALYSIS OF PHYSICOCHEMICAL AND MICROBIOLOGICAL PARAMETERS IN THE WATER OF THE CEARÁ RIVER ESTUARY

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Gardilene Monteiro da Silva
Rita Mickaela Barros de Andrade
Daniel Silveira Serra
Francisco Sales Ávila Cavalcante
Mona Lisa Moura de Oliveira
Antonia Mayza de Morais França
Ronaldo Ferreira do Nascimento

Abstract

The APA of the Ceará River Estuary faces environmental problems, such as the presence of garbage in the estuary and water pollution, mainly caused by industrial and domestic sewage. The work was base on the analysis of the water of the Ceará River Estuary through physicalchemical and microbiological parameters and quantification of heavy metals Cd, Cu, Mn, Pb, and Ni. the APA of the Ceará River Estuary, in the rainy and dry seasons. Ammonia, chemical oxygen demand-COD and conductivity samples were prepares in duplicate and the analysis methodology was adopts according to Standard Methods APHA, 2005. The microbiological test was base on the presence/absence method with the Colilert (IDEXX’s Quanti-Tray). For the analysis of the quantification of metals, they were performed in a Flame Atomic Absorption Spectrophotometer (FAAS) Perkin Elmer, model Aanalyst 1000. The quantification method used for metals is external standardization. High values of COD and ammonia were quantifies, as well as the existence of the presence of total coliforms and E. coli. The metals Cd, Pb, Mn, and Ni obtained values above those recommended by CONAMA Resolution nº 357/05, Pb quantified more significant values compared to the metals analysis and Cu was detects at only one point of the analysis, in the rainy season, which showed the highest concentration of metals. The increase in metal concentrations can cause damage to the ecosystem, as it is possible to visualize the long-term consequences, such as urbanization and intense occupation in the Ceará River Estuary.

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[1]
Silva, G.M. da, Andrade , R.M.B. de, Serra , D.S. , Cavalcante, F.S. Ávila ., Oliveira , M.L.M. de ., Morais França , A.M. de . and Nascimento , R.F. do . 2023. QUANTIFICATION OF HEAVY METALS AND ANALYSIS OF PHYSICOCHEMICAL AND MICROBIOLOGICAL PARAMETERS IN THE WATER OF THE CEARÁ RIVER ESTUARY. Revista AIDIS de ingeniería y ciencias ambientales: Investigación, desarrollo y práctica. 16, 1 (Apr. 2023), 18–32. DOI:https://doi.org/10.22201/iingen.0718378xe.2023.16.1.81046.

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Author Biography

Gardilene Monteiro da Silva, Programa de Pós Graduação em Tecnologia e Gestão Ambiental, Instituto Federal de Educação, Ciência e Tecnologia do Ceará, Brasil

Aluna do Instituto Federal de Educação, Ciência e Tecnologia do Ceará - IFCE, no mestrado acadêmico em Tecnologia e Gestão Ambiental, na linha de Pesquisa em Monitoramento e Controle da Qualidade Ambiental - Bolsista CAPES. Tem como formação inicial graduação em Ciências Biológicas (2015) e especialização em Fisiologia Humana (2017), ambas pela Universidade Estadual do Ceará - UECE. Faz parte do corpo discente de pesquisadores do laboratório de Biofísica da Respiração (LBR) da Universidade Estadual do Ceará. Possui experiência na área da docência no ensino básico e superior.