| Autor: |
Costa, Alexandre Barreto, de Souza, José Roberto Bispo, Zucchi, Maria do Rosário, de Azevedo, Antonio Expedito Gomes, de Argollo, Roberto Max |
| Předmět: |
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| Zdroj: |
Marine Pollution Bulletin; Apr2016, Vol. 105 Issue 1, p411-415, 5p |
| Abstrakt: |
A sediment core was taken from the Todos os Santos Bay, near the Mataripe Bahia‐Brazil refinery. The results of dating, 210 Pb and 137 Cs methods, combined with organic indicators, Polycyclic aromatic hydrocarbons (PAHs), n -alkanes and total organic carbon (TOC), showed significant change with the start of production of the oil fields of Aratu, Itaparica and Dom João (1939‐1947) and the construction of the Mataripe refinery (1949‐1950). This event was marked by a series of significant changes, including an abrupt increase in TOC and the growth of PAH concentrations and the presence Unresolved/Resolved ratio (UR/R) > 4 in n -alkanes fraction, which indicated that the contamination was of petrogenic origin. The δ 13 C of specific n -alkanes compounds showed gradual deplete with the depth. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Supplemental Index |
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