DOI: 10.1016/j.marpolbul.2016.05.022
Scopus记录号: 2-s2.0-84992361891
论文题名: Evaluation of anthropogenic contamination using sterol markers in a tropical estuarine system of northeast Brazil
作者: Frena M. ; Souza M.R.R. ; Damasceno F.C. ; Madureira L.A.S. ; Alexandre M.R.
刊名: Marine Pollution Bulletin
ISSN: 0025-326X
EISSN: 1879-3363
出版年: 2016
卷: 109, 期: 1 起始页码: 619
结束页码: 623
语种: 英语
英文关键词: Sediment
; Sewage contamination
; Sterols
Scopus学科分类: Agricultural and Biological Sciences: Aquatic Science
; Earth and Planetary Sciences: Oceanography
; Environmental Science: Pollution
英文摘要: The São Francisco River estuarine system, located in the Northeast coast of Brazil, has great economic, tourist and social importance. Its waters are used for activities such as agriculture, aquaculture, navigation and fishery, which supplies the surrounding communities. In this study, sterols markers were determined in twenty-eight sediment samples from São Francisco River estuary by gas chromatography - mass spectrometry (GC–MS). Sterol analysis was useful to distinguish between anthropogenic and biogenic organic matter (OM) sources in the studied area. Six sterols were quantified, suggesting different sources. Concentrations of fecal sterol (coprostanol) were lower than 500 ng g− 1, suggesting no indicative of severe sewage contamination.However, two stations showed concentrations around 100 ng g− 1 and the values for the coprostanol/(coprostanol + cholestanol) and coprostanol/cholesterol ratios indicates sewage contamination. The results in this study may be considered as baseline concentrations to be used as future reference for monitoring programs to prevent anthropogenic impacts. © 2016 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/86907
Appears in Collections: 过去全球变化的重建 全球变化的国际研究计划
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作者单位: Universidade Federal de Sergipe, Departamento de Química, Sergipe, São Cristóvão, SE, Brazil; Universidade Federal de Santa Catarina, Departamento de Química, Campus Universitário Trindade, Santa Catarina, Florianópolis, SC, Brazil
Recommended Citation:
Frena M.,Souza M.R.R.,Damasceno F.C.,et al. Evaluation of anthropogenic contamination using sterol markers in a tropical estuarine system of northeast Brazil[J]. Marine Pollution Bulletin,2016-01-01,109(1)