Journal
MARINE POLLUTION BULLETIN
Volume 82, Issue 1-2, Pages 183-188Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.marpolbul.2014.03.010
Keywords
Suape Estuary; Water monitoring; DDPHs; Carmopolis oil; UV-Fluorescence
Funding
- Conselho Nacional de Pesquisa (CNPq) [478589/2010-7]
- CNPq for the Brazilian Graduate Research Fellowship
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A fast paced industrial and port development has occurred at Suape Estuary, Northeast Brazil, but no information about hydrocarbon concentrations in water is available to this area. Considering that, the contamination level of Suape was determined by UV-Fluorescence in terms of dissolved and/or dispersed petroleum hydrocarbons (DDPHs), during wet and dry seasons. DDPHs ranged between 0.05 and 4.59 mu g L-1 Carmopolis oil equivalents and 0.01-1.39 mu g L-1 chrysene equivalents, indicating DDPHs close to a baseline contamination level. Some relatively high concentrations (>1 mu g L-1) were probably associated with shipyard operations (hull paintings and ship docking), pollutants remobilization by dredging operations, occasional industrial discharges and oil derivatives released by vessels. DDPHs concentrations were lower in the wet season suggesting that the increased dilution rates caused by rainfall dominated upon the wet deposition of atmospheric combustion-derived PAHs process. Results in this study may be used as baseline to further studies in this area. (C) 2014 Elsevier Ltd. All rights reserved.
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