Acta Brasiliensis (Jan 2018)

Evaluation of chemical elements content in mangroves island of Itaparica, Bahia, Brazil

  • Leila Maria Mendes Santos,
  • Rosemário Cerqueira Souza,
  • Daniela Santos Anunciação,
  • Icaro Thiago Andrade Moreira,
  • Vera Lúcia Câncio Souza Santos,
  • Zenira Cardoso Vilaboas Viana

DOI
https://doi.org/10.22571/2526-433838
Journal volume & issue
Vol. 2, no. 1
pp. 15 – 20

Abstract

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The content of Fe, Mn, Mo, Ni, Cu, Ba and V are reported in surface sediments of mangrove of seven settlements: Baiacu, Cacha Pregos, Jeribatuba, Misericórdia, Mocambo, Campinas e Ponta Grossa. All of them from the island of Itaparica, Bahia. Values ​​equivalent to the percentage of organic matter and calcium carbonate and particle size analysis are also presented in the samples investigated. Trace and major elements were determined by ICP OES and higher concentrations (µg g-1) were found mainly in the Misericórdia (Mn: 36.35 ± 1.14; Ba: 11.01 ± 1.71; V: 10.55 ± 1.81; Mo: 10.77 ±1.82) . Cacha Pregos (Mn: 26.75 ± 2.51; Ba: 9.77 ± 1.42; Cu: 20.38 ± 6.55) and Jeribatuba (Ba: 9.88 ±0.46). High concentrations of Mn in Baiacu and Ponta Grossa were also presented. Statistical analysis expressed by Pearson Correlation Matrix and Principal Component Analysis (PCA) established relationships between variables and samples studied, corroborating metal concentrations found in the samples of Misericórdia, Cacha Pregos and Jeribatuba.