Avaliação das concentrações de BTEX de amostras de água do rio Lonqueador no município de Francisco Beltrão-PR

Abstract

BTEX are monoaromatic hydrocarbons of high environmental relevance, due to their high mobility and toxicity. They are compounds found in petroleum tables, the main one being gasoline and are classified as priority, and in this work they will seek to quantify BTEX in water samples. The quantification of BTEX concentrations in the samples was carried out by Gas Chromatography with photoionization and flame ionization detectors, carried out in the A3Q Labs laboratory located in the city of Cascavel, Paraná. Several factors directly affect the reduction in the quality of water resources, including population growth, urbanization, industrial expansion and the use and occupation of land with limited availability of drinking water for human consumption, threatening people's health and causing great social losses. The results obtained in the samples did not exceed the detection limit of the method, compared to the CONAMA resolution 430/2011 and Ordinance GM/MS nº88, the concentrations were well below the permitted level. In the Lonqueador River basin, 43 potential BTEX contaminating companies are identified, such as gas stations, mechanical accessories workshops and fuel distributors. In addition to greater soil permeability, water pollution is not apparent, and it is not possible to identify the presence of oil stains or other contaminants.