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Updated: Feb 14, 2026

A Modified QuEChERS-HPLC Method for Detection of Polycyclic Aromatic Hydrocarbons in Zebrafish Embryos Exposed to Fine Particulate Matter
Published on: June 13, 2025
Concentration, distribution and source apportionment of polycyclic aromatic hydrocarbons (PAH) in Poxim River
Michel R R Souza1, Ewerton Santos1, Jaiane S Suzarte1
1Universidade Federal de Sergipe, Departamento de Química, São Cristóvão, Sergipe, SE 491000-000, Brazil.
Abstract:
The individual concentrations, total amount and sources of 16 priority polycyclic aromatic hydrocarbons (PAH) in sediments collected along of the Poxim River, Aracaju, Brazil, were for the first time determined. The ΣPAH ranged between 2.2±1.5ngg-1 and 28.4±6.9ngg-1, with a mean value of 14.4±9.3ngg-1. The Pearson correlation test and Principal component analysis (PCA) were used to assess the correlation between the PAH, organic matter and grain size; and to differentiate the sampling stations. Diagnostic ratios presented predominance of pyrogenic sources. Therefore, the PAH quantified showed the influence of anthropogenic activities near of the Poxim River.
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