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Polycyclic aromatic hydrocarbon determination (PAHs) transported by storm water drainage in the Pelotas region and its levels in São Gonçalo Channel

MELINA S. HALL, GISSELE O. MONTENEGRO, GLAUCO R. BETEMPS, BERNARDO S. VAZ, PEDRO J. SANCHES FILHO*
*Corresponding author
Instituto Federal Sul-Rio-Grandense, Campus Pelotas
Praça Vinte de Setembro, 455 CEP 96015-360 – Centro, Pelotas – RS, Brazil

KEYWORDS: PAHs, runoff, sediment, urban drainage.
ABSTRACT:
The pollution in aquatic environments can be indicated by high concentrations of PAHs. This study is aimed to evaluate the possible sources of contamination of PAHs in the São Gonçalo channel sediments collected from the areas of receipt rainwater systems. It was possible to identify sources of contamination and hydrocarbon levels in points studied. The PAHs concentrations found were considered relatively high, in the point located within the Pepino Channel, near the arrival at the São Gonçalo Channel, confirming the impact of urban runoff in the city's drainage system and how and its consequent impact on water resources.


INTRODUCTION

The São Gonçalo channel is located in the city of Pelotas in Rio Grande do Sul state and is considered as one of several contaminants entry point coming from human actions (1). The urban areas rely on the system of runoff canals to capture rainfall water that promote urban runoff, process dragging contaminants that i ...
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