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

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 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.

journal_name

Mar Pollut Bull

authors

Barbosa JC,Santos LG,Sant'Anna MV,Souza MR,Damasceno FC,Alexandre MR

doi

10.1016/j.marpolbul.2016.01.037

subject

Has Abstract

pub_date

2016-03-15 00:00:00

pages

343-6

issue

1-2

eissn

0025-326X

issn

1879-3363

pii

S0025-326X(16)30036-4

journal_volume

104

pub_type

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