RESUMO
Passive diffusion samplers were employed in San Miguel (Buenos Aires Metropolitan Area) for a preliminary air pollution monitoring. The highest loads were observed in downtown, compared with an urban background site. Total suspended particulate matter (TSPM) varied from 0.257 to 0.033 mg cm(-2) month(-1); dust was examined for particle nature and size distribution. A similar trend was observed for nitrogen dioxide (NO2) and TSPM spatial distribution, suggesting that traffic is the major pollution source. Sulphur dioxide (SO2) values were low and rather homogeneous. Levels for the investigated pollutants are below EPA's guide line values. Geographic (flat area, near to Rio de La Plata) and climatologic factors (rainfalls and variable wind directions) contribute to disperse pollutants.
Assuntos
Poluentes Atmosféricos/análise , Poluição do Ar/análise , Monitoramento Ambiental/instrumentação , Dióxido de Nitrogênio/análise , Dióxido de Enxofre/análise , Argentina , Difusão , Monitoramento Ambiental/métodos , Microscopia , Tamanho da Partícula , Estudos de AmostragemRESUMO
The authors report the study of eight children with discitis diagnosed through clinical, neurological and orthopedic evaluation. The evidence of self limiting inflammation or infection of the intervertebral disk space and of soft tissue were available by image studies. Findings with routine roentgenograms, computed tomography and magnetic resonance imaging are discussed.
Assuntos
Discite/diagnóstico , Adolescente , Pré-Escolar , Feminino , Humanos , Lactente , Imageamento por Ressonância Magnética , Masculino , Tomografia Computadorizada por Raios XRESUMO
Os autores apresentam o estudo de oito crianças com diagnóstico de discite estabelecido através da avaliaçäo clínica, neurológica e ortopédica. A comprovaçäo de alteraçöes inflamatórias em um espaçäo discal, vertebral e em tecidos moles foi possível em estudos por imagem, sendo discutidos aqueles obtidos por radiologia convencional, tomografia computadorizada e ressonância magnética