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DOI	10.1016/j.marpolbul.2019.110607
	Distribution patterns of aliphatic hydrocarbons in sediments from a tropical estuarine system
	Gadelha L.G.; Frena M.; Damasceno F.C.; Santos E.; Sant`Anna M.V.S.; Vinhas M.A.; Barreto T.S.A.; Alexandre M.R.
发表日期	2019
ISSN	0025326X
卷号	149
英文摘要	The São Francisco River has historical and economic relevance to the development of Northeast Brazil. However, the dams and reservoirs located along the basin and anthropogenic activities have been affecting its estuary. Herein, 26 surface sediment samples were analyzed to access the origin and distribution of aliphatic hydrocarbons. Concentrations of these hydrocarbons ranged from 0.95 μg g−1 to 2.87 μg g−1 in the summer and from 0.22 μg g−1 to 1.49 μg g−1 in the winter. Diagnostic ratios and indexes indicate higher plants, bacteria, and petroleum as hydrocarbon sources. A positive correlation was also observed between ∑n-alkanes and total organic matter (0.25) and fine fraction (0.47) as well as a significant difference (p < 0.05) between long-chain n-alkanes in the two sampling periods. Although the concentrations found in this study were lower than those in the other impacted coastal zones, our results have indicated the possible presence of petroleum contamination mainly associated with the discharge of oil derivatives from boat activities. © 2019 Elsevier Ltd
英文关键词	Aliphatic hydrocarbons; Organic biomarkers; Sediments; São francisco river estuary
语种	英语
scopus关键词	Coastal zones; Estuaries; Gasoline; Natural gasoline; Paraffins; Reservoirs (water); Tropics; Aliphatic hydrocarbons; Anthropogenic activity; Distribution patterns; Hydrocarbon sources; Long chain n-alkanes; Petroleum contamination; Positive correlations; Total organic matter; Sediments; aliphatic hydrocarbon; alkane; organic matter; petroleum; aliphatic hydrocarbon; anthropogenic source; biomarker; concentration (composition); estuarine pollution; pollution monitoring; sediment pollution; Article; Brazil; coastal waters; controlled study; dam (barrier); economics; estuary; river basin; sediment; tropics; water supply; Brazil; Sao Francisco River; Embryophyta
来源期刊	Marine Pollution Bulletin
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/149458
作者单位	Universidade Federal de Sergipe, Departamento de Química, São Cristóvão, Sergipe SE 49100-000, Brazil; Universidade Federal de Santa Catarina, Departamento de Química, Campus Universitário Trindade, Florianópolis, Santa Catarina SC 88040-900, Brazil
推荐引用方式 GB/T 7714	Gadelha L.G.,Frena M.,Damasceno F.C.,et al. Distribution patterns of aliphatic hydrocarbons in sediments from a tropical estuarine system[J],2019,149.
APA	Gadelha L.G..,Frena M..,Damasceno F.C..,Santos E..,Sant`Anna M.V.S..,...&Alexandre M.R..(2019).Distribution patterns of aliphatic hydrocarbons in sediments from a tropical estuarine system.Marine Pollution Bulletin,149.
MLA	Gadelha L.G.,et al."Distribution patterns of aliphatic hydrocarbons in sediments from a tropical estuarine system".Marine Pollution Bulletin 149(2019).