2005
DOI: 10.1590/s0303-76572005000200005
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Estudo comparativo entre as poeiras respiráveis de basalto e gnaisse na produção de brita nas regiões de Londrina e Curitiba, no estado do Paraná, e sua influência para os trabalhadores

Abstract: Este trabalho visa à análise comparativa entre as poeiras de basalto e gnaisse em empresas produtoras de brita nas regiões de Londrina e Curitiba, no estado do Paraná, através de avaliações ambientais apoiadas por análises químicas, petrográficas e morfoscópicas das rochas e das poeiras. Utilizou-se bomba de amostragem individual, munida com filtros de PVC, para coleta de partículas respiráveis nos trabalhadores e posterior análise por difração de raios-X para determinação de sílica livre cristalizada. As anál… Show more

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“…Basalt dust is generated during basalt mining to obtain aggregates for civil construction (gravel production from basalt). 17 Due to the reduced particle size, there is currently no application for the dust. Basalt consists of silicon, aluminum, and iron minerals in the form of pyroxenes (augite), plagioclases, and magnetite.…”
Section: Methods Of Characterizationmentioning
confidence: 99%
See 1 more Smart Citation
“…Basalt dust is generated during basalt mining to obtain aggregates for civil construction (gravel production from basalt). 17 Due to the reduced particle size, there is currently no application for the dust. Basalt consists of silicon, aluminum, and iron minerals in the form of pyroxenes (augite), plagioclases, and magnetite.…”
Section: Methods Of Characterizationmentioning
confidence: 99%
“…Basalt is an eruptive igneous rock and its processing generates large quantities of a byproduct in the form of a powder. Basalt dust is generated during basalt mining to obtain aggregates for civil construction (gravel production from basalt) 17 . Due to the reduced particle size, there is currently no application for the dust.…”
Section: Introductionmentioning
confidence: 99%