Chronology of anthropogenic impacts reconstructed from sediment records of trace metals and Pb isotopes in Todos os Santos Bay (NE Brazil)
The evolution of the impacts of anthropogenic activities in Todos os Santos Bay was evaluated by profiles of trace metals and Pb isotopes determined in sediment cores. Fluxes of metals increased up to 12, 4 and 2 times for Cu, Pb, and Zn, respectively, compared to those recorded in the beginning of...
| Main Authors: | , , , , , |
|---|---|
| Other Authors: | |
| Format: | Article |
| Language: | en_US |
| Published: |
Elsevier BV
2020
|
| Online Access: | https://hdl.handle.net/1721.1/123813 |
| _version_ | 1811078302418337792 |
|---|---|
| author | Andrade, R.L.B. Hatje, V. Masqué, P. Zurbrick, Cheryl M Boyle, Edward A Santos, W.P.C. |
| author2 | Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences |
| author_facet | Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences Andrade, R.L.B. Hatje, V. Masqué, P. Zurbrick, Cheryl M Boyle, Edward A Santos, W.P.C. |
| author_sort | Andrade, R.L.B. |
| collection | MIT |
| description | The evolution of the impacts of anthropogenic activities in Todos os Santos Bay was evaluated by profiles of trace metals and Pb isotopes determined in sediment cores. Fluxes of metals increased up to 12, 4 and 2 times for Cu, Pb, and Zn, respectively, compared to those recorded in the beginning of the 20th century. Stable Pb isotopes identified a decommissioned lead smelter and burning of fossil fuels as the main sources of Pb. Most metals showed minor to moderate enrichment factors (EF < 4), but Cu and Pb were highly enriched (EF = 28 and 6, respectively) at the Aratu harbor. Temporal changes in sediments were associated to different activities, namely Pb smelting, burning of fossil fuels, maritime traffic, petroleum related activities, inputs of domestic effluents, and changes in land uses. The effects of the implementation of environmental policies to improve the waters of the bay could not be identified in the evaluated cores. Keywords: Contamination; Sediment pollution record; Trace elements; Pb isotopes; Sedimentation rates; Todos os Santos Bay |
| first_indexed | 2024-09-23T10:57:27Z |
| format | Article |
| id | mit-1721.1/123813 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T10:57:27Z |
| publishDate | 2020 |
| publisher | Elsevier BV |
| record_format | dspace |
| spelling | mit-1721.1/1238132022-10-01T00:12:16Z Chronology of anthropogenic impacts reconstructed from sediment records of trace metals and Pb isotopes in Todos os Santos Bay (NE Brazil) Chronology of anthropogenic impacts reconstructed from sediment records of trace metals and Pb isotopes in Todos os Santos Bay (NE Brazil) Andrade, R.L.B. Hatje, V. Masqué, P. Zurbrick, Cheryl M Boyle, Edward A Santos, W.P.C. Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences Boyle, Edward The evolution of the impacts of anthropogenic activities in Todos os Santos Bay was evaluated by profiles of trace metals and Pb isotopes determined in sediment cores. Fluxes of metals increased up to 12, 4 and 2 times for Cu, Pb, and Zn, respectively, compared to those recorded in the beginning of the 20th century. Stable Pb isotopes identified a decommissioned lead smelter and burning of fossil fuels as the main sources of Pb. Most metals showed minor to moderate enrichment factors (EF < 4), but Cu and Pb were highly enriched (EF = 28 and 6, respectively) at the Aratu harbor. Temporal changes in sediments were associated to different activities, namely Pb smelting, burning of fossil fuels, maritime traffic, petroleum related activities, inputs of domestic effluents, and changes in land uses. The effects of the implementation of environmental policies to improve the waters of the bay could not be identified in the evaluated cores. Keywords: Contamination; Sediment pollution record; Trace elements; Pb isotopes; Sedimentation rates; Todos os Santos Bay 2020-02-14T18:28:06Z 2020-02-14T18:28:06Z 2017-12 2017-06 Article http://purl.org/eprint/type/JournalArticle 0025-326X https://hdl.handle.net/1721.1/123813 Andrade, R. L. B. et al. "Chronology of anthropogenic impacts reconstructed from sediment records of trace metals and Pb isotopes in Todos os Santos Bay (NE Brazil)." Marine Pollution Bulletin 125, 1-2 (December 2017): 459-471 © 2017 Elsevier en_US https://doi.org/10.1016/j.marpolbul.2017.07.053 Marine Pollution Bulletin Creative Commons Attribution-NonCommercial-NoDerivs License http://creativecommons.org/licenses/by-nc-nd/4.0/ application/octet-stream application/pdf Elsevier BV Prof. Boyle via Chris Sherratt |
| spellingShingle | Andrade, R.L.B. Hatje, V. Masqué, P. Zurbrick, Cheryl M Boyle, Edward A Santos, W.P.C. Chronology of anthropogenic impacts reconstructed from sediment records of trace metals and Pb isotopes in Todos os Santos Bay (NE Brazil) |
| title | Chronology of anthropogenic impacts reconstructed from sediment records of trace metals and Pb isotopes in Todos os Santos Bay (NE Brazil) |
| title_full | Chronology of anthropogenic impacts reconstructed from sediment records of trace metals and Pb isotopes in Todos os Santos Bay (NE Brazil) |
| title_fullStr | Chronology of anthropogenic impacts reconstructed from sediment records of trace metals and Pb isotopes in Todos os Santos Bay (NE Brazil) |
| title_full_unstemmed | Chronology of anthropogenic impacts reconstructed from sediment records of trace metals and Pb isotopes in Todos os Santos Bay (NE Brazil) |
| title_short | Chronology of anthropogenic impacts reconstructed from sediment records of trace metals and Pb isotopes in Todos os Santos Bay (NE Brazil) |
| title_sort | chronology of anthropogenic impacts reconstructed from sediment records of trace metals and pb isotopes in todos os santos bay ne brazil |
| url | https://hdl.handle.net/1721.1/123813 |
| work_keys_str_mv | AT andraderlb chronologyofanthropogenicimpactsreconstructedfromsedimentrecordsoftracemetalsandpbisotopesintodosossantosbaynebrazil AT hatjev chronologyofanthropogenicimpactsreconstructedfromsedimentrecordsoftracemetalsandpbisotopesintodosossantosbaynebrazil AT masquep chronologyofanthropogenicimpactsreconstructedfromsedimentrecordsoftracemetalsandpbisotopesintodosossantosbaynebrazil AT zurbrickcherylm chronologyofanthropogenicimpactsreconstructedfromsedimentrecordsoftracemetalsandpbisotopesintodosossantosbaynebrazil AT boyleedwarda chronologyofanthropogenicimpactsreconstructedfromsedimentrecordsoftracemetalsandpbisotopesintodosossantosbaynebrazil AT santoswpc chronologyofanthropogenicimpactsreconstructedfromsedimentrecordsoftracemetalsandpbisotopesintodosossantosbaynebrazil |