Seasonal distribution of aliphatic hydrocarbons in the Vaza Barris Estuarine System, Sergipe, Brazil

Marine Pollution Bulletin
José Carlos S BarbosaMarcelo R Alexandre

Abstract

The seasonal assessment of anthropogenic activities in the Vaza Barris estuarine river system, located in the Sergipe state, northeastern Brazil, was performed using the aliphatic hydrocarbon distribution. The aliphatic hydrocarbon and isoprenoid (Pristane and Phytane) concentrations ranged between 0.19 μg g(-1) and 8.5 μg g(-1) of dry weight. Data were analyzed using Kruskal-Wallis test, with significance level set at p<0.05, and no seasonality distribution change was observed. The Carbon Preference Index (CPI), associated with <SIGMA> n-alkanes/n-C16, Low Molecular Weight/High Molecular Weight ratio (LMW/HMW) and Terrigenous to Aquatic Ratio (TAR) suggested biogenic input of aliphatic hydrocarbons for most samples, with significant contribution of higher plants.

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Citations

Oct 4, 2016·Environmental Science and Pollution Research International·Morgana FrenaMarcelo R Alexandre
Jun 25, 2020·Bulletin of Environmental Contamination and Toxicology·L C SousaJ A M Corrêa
Aug 12, 2021·Bulletin of Environmental Contamination and Toxicology·Júlia ArduimPedro José Sanches Filho

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