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FOSSIL FUEL ENVIRONMENTAL CONTAMINATION: A STRATEGY USING RADIOCARBON, N-ALKANES, AND ALGAE

Published online by Cambridge University Press:  09 June 2021

Túlio César Aguiar Silva
Affiliation:
Laboratório de Radiocarbono (LAC-UFF), Universidade Federal Fluminense, Geochemistry Department, Niteroi, Rio de Janeiro, Brazil Programa de Pós-Graduação em Geoquímica – UFF, Niteroi, Rio de Janeiro, Brazil
Carla Carvalho*
Affiliation:
Laboratório de Radiocarbono (LAC-UFF), Universidade Federal Fluminense, Geochemistry Department, Niteroi, Rio de Janeiro, Brazil Programa de Pós-Graduação em Geoquímica – UFF, Niteroi, Rio de Janeiro, Brazil
Bruno Libardoni
Affiliation:
Department of Science and Innovation – Infinito Mare, São Paulo, Brazil
Kita Macario
Affiliation:
Laboratório de Radiocarbono (LAC-UFF), Universidade Federal Fluminense, Geochemistry Department, Niteroi, Rio de Janeiro, Brazil
Felippe Braga de Lima
Affiliation:
Laboratório de Radiocarbono (LAC-UFF), Universidade Federal Fluminense, Geochemistry Department, Niteroi, Rio de Janeiro, Brazil Programa de Pós-Graduação em Geoquímica – UFF, Niteroi, Rio de Janeiro, Brazil
Mariana Cruz Pimenta
Affiliation:
Laboratório de Radiocarbono (LAC-UFF), Universidade Federal Fluminense, Geochemistry Department, Niteroi, Rio de Janeiro, Brazil
Maria Isabela Nascimento de Oliveira
Affiliation:
Laboratório de Radiocarbono (LAC-UFF), Universidade Federal Fluminense, Geochemistry Department, Niteroi, Rio de Janeiro, Brazil Programa de Pós-Graduação em Geoquímica – UFF, Niteroi, Rio de Janeiro, Brazil
Marcelo Corrêa Bernardes
Affiliation:
Programa de Pós-Graduação em Geoquímica – UFF, Niteroi, Rio de Janeiro, Brazil
Gabriela da Silva Marques
Affiliation:
Programa de Pós-Graduação em Geoquímica – UFF, Niteroi, Rio de Janeiro, Brazil
Fernanda Pinto
Affiliation:
Laboratório de Radiocarbono (LAC-UFF), Universidade Federal Fluminense, Geochemistry Department, Niteroi, Rio de Janeiro, Brazil
Rosa de Souza
Affiliation:
Laboratório de Radiocarbono (LAC-UFF), Universidade Federal Fluminense, Geochemistry Department, Niteroi, Rio de Janeiro, Brazil
Diana Negrão Cavalcanti
Affiliation:
Programa de Pós-Graduação em Biologia Marinha e Ambientes Costeiros – UFF, Niteroi, Rio de Janeiro, Brazil
*
*Corresponding author. Email: carlac@id.uff.br.

Abstract

Fossil fuels are of utmost importance to the world we live in today. However, their use can cause major impacts on the environment, especially on water resources. In this regard, algae have been intensively used as a strategy for remediation and monitoring of environmental pollution due to its efficient absorption of contaminants. In this work, samples of seaweed collected in Niterói/RJ—contaminated with kerosene and diesel—were analyzed by radiocarbon (14C) accelerator mass spectrometry (AMS) and by n-alkane quantification with gas chromatography to evaluate bioaccumulation in function of the dosage of contaminants. The biogenic content measured by radiocarbon analysis resulted in 95.6% for algae contaminated with 10 mL of kerosene and 67.6% for algae contaminated with 10 mL of diesel. The maximum intensity of n-C17 n-alkane in algae with 5 mL, 10 mL, and 15 mL of diesel was 768.2, 1878.1, and 5699.2 ng.g-1, respectively. While the maximum concentration of n-C27 in algae with 5 mL, 10 mL and 15 mL of kerosene was 3.3, 35.9, and 150.3 ng.g-1. We concluded that, for both contaminants, their incorporation into algae increases as the contamination dosage increases, making this methodology an effective technique for monitoring and remediation of urban aquatic ecosystems.

Type
Conference Paper
Copyright
© The Author(s), 2021. Published by Cambridge University Press for the Arizona Board of Regents on behalf of the University of Arizona

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Footnotes

Selected Papers from the 1st Latin American Radiocarbon Conference, Rio de Janeiro, 29 Jul.–2 Aug. 2019

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