Estudo da contaminação do solo a partir da degradação de bitucas de cigarros no município de Frederico Westphalen

Abstract

If we walk through the streets of any city in Brazil, we will find cigarette butts present on the ground, the same when compared to other waste that is also discarded, they seem to be harmless, but the population does not imagine the damage they are capable of causing. cause in the environment. Due to the inappropriate disposal of cigarette butts, they have the potential to cause a negative impact on the air, soil and water, due to their composition containing around 4,700 substances. Toxic substances end up being stored in filters and when they come into contact with water and soil they cause contamination. In view of this, the given study aims to develop soil and cigarette butt analyzes using atomic absorption spectrometry in order to identify the concentrations of Pb, Hg, Cr, Cd and Ni, collected in two locations (A and B) determined in the municipality of Frederico Westphalen. The concentrations found for butts in areas A and B were respectively 0.064 and 0.759 mg/kg for Lead, 0.949 and 1.387 mg/kg for Nickel, 1.063

and 1.875 mg/kg for Chromium. In soil analyzes the concentrations for samples without butts and with butts from Area A, the value of the element Lead was 12.844 and 4.901mg/kg, in B 15.502 and 8.783 mg/kg, in Chromium (A) 29.885 and 13.293 mg /kg, (B) 29.861 and 26.572, for Nickel it was (A) 28.097 and 27.969 mg/kg, (B) 18.674 and 39.204 mg/kg, while the Mercury concentrations for the soil and butts from both areas it was not possible to detect and for the Cadmium analyzes the values ​​were below the limit of quantification. Therefore, with the results obtained, it can be concluded that it cannot be defined exactly whether cigarette butts contaminate the soil, due to the higher values ​​in soils without butts, as it is not possible to say for what period the butts remained in contact. with the soils and these results may have been influenced by anthropogenic activities.