Avaliação da relação entre a disponibilidade de chumbo, baixo rendimento acadêmico e agressividade em estudantes

• Autor(a) principal: Tavares, Letícia Fátima da Silva [UNIFESP]
• Data de Publicação: 2016
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: Repositório Institucional da UNIFESP
• Texto Completo: https://sucupira.capes.gov.br/sucupira/public/consultas/coleta/trabalhoConclusao/viewTrabalhoConclusao.jsf?popup=true&id_trabalho=3775707; https://repositorio.unifesp.br/handle/11600/47747
• topic: Saturnism; Neurotoxicity; Academic performance; Aggressiveness; Lead; Saturnismo; Neurotoxicidade; Rendimento acadêmico; Agressividade; Chumbo

This study was conducted to quantify lead in the school environment and nails of students between 11 and 15 years of the city of Diadema - SP and the correlation between this data and socio-behavioral profile of these students. The focus was the neurocognitive system, where it aimed to verify the existence of correlation between the levels of lead present in the school environment and nails of students, and low academic achievement levels and aggressiveness of the same. A control group of students from the city of Varginha - MG was also analyzed in order to compare the lead of availability at school and nails of the students, in addition to academic performance and aggressiveness thereof to academic performance and aggressiveness of Diadema students - SP, always correlating this data to lead poisoning. The lead of this analysis the environment have been carried out by Fluorescence Spectroscopy portable X-ray and biological samples (nails) collected were quantified by Atomic Absorption Spectroscopy in Graphite Furnace. They were also applied social and behavioral questionnaires acquired by Achenbach System of empirically based Assessment (ASEBA) that are suitable for the needs of this study. The questionnaires were applied to students, parents and teachers of these students investigated, in order to correlate behavioral attitudes, academic performance and lead contamination levels. Lead concentrations found in the school environment were in the range 10-12089 mg kg -1 to school in Diadema - SP and in the range 0-1000 mg kg-1 for school Varginha - MG. In nails, lead concentrations were found in the range 0,11 to 16,74 ± 0,001-0,57 mg Pb / g nail in the school of Diadema - SP and 0,22 to 11,36 ± 0,00 ? 0,73 g Pb / g nail in school Varginha - MG. According to the behavioral methodology, students of Diadema - SP exhibit more aggressive behavior and poorer cognitive performance compared to students Varginha - MG. We hope, with this work, contribute to the development of public policies that assist in the elimination of lead contamination especially in children and adolescents, with lead as one of the possible causes for the low academic performance and aggressiveness of the same.