RESUMO
OBJECTIVE: To determine the presence of eggs, larva, cysts and oocysts of intestinal parasites in the soil of a suburb of Neuquén city during 1 year in order to evaluate their seasonal fluctuations in relation to climatic data and soil characteristics in the studied area. METHODS: A total of 107 soil samples were processed for parasite isolation by sedimentation and flotation methods during the four seasons of the year. Meteorological data were registered and physical, chemical and structural characteristics of the soil were analysed. RESULTS: About 28.9% of the soil samples were positive for at least one parasite form. Six protozoa species (cysts of Entamoeba sp., Enteromonas sp., Endolimax sp., Giardia sp., Iodamoeba sp. and coccidia oocysts) were recovered, but neither larvae nor eggs of human or animal helminths parasites were detected. The percentage of contaminated soil samples and the diversity of species showed a marked decrease in the warm and dry months of the summer. The soil was sandy, without vegetable cover, well drained, and with scarce organic matter content. CONCLUSION: The frequencies of parasite recovery and the number of species show seasonal fluctuations related to the rainfall. The importance of soil as a risk factor for the transmission of intestinal parasites in the studied area is conditioned by its structural characteristics, which prevent retaining the humidity, and by climatic variables. The interrelation of both factors determines unfavourable conditions that could explain the low level of contamination observed in soil as well as the absence of eggs and helminth larvae.
Assuntos
Reservatórios de Doenças , Estações do Ano , Solo/parasitologia , Animais , Argentina , Eucariotos/isolamento & purificação , Chuva , Fatores de Risco , Solo/análiseRESUMO
Se propone que el bioensayo realizado por el equipo de Profesionales, sea una rutina previa a la limpieza de envases contenedores de residuos especiales o peligrosos. Este trabajo fué solicitado por el yacimiento "Entre Lomas" de la empresa Petrolera Peréz Compac
Assuntos
Resíduos Perigosos , Meio Ambiente , Indústria de Petróleo e Gás , CongressoRESUMO
El presente trabajo es un estudio realizado con el objeto de determinar el grado de compromiso ambiental operado en la Colonia Agrícola (Neuquén), por efecto de la actividad petrolera que en este momento desarrolla una empresa del ramo. Los autores pertenecen a la UN del Comahue, Laboratorio de Investigaciones y Servicios en Control de Calidad Ambiental. Se tuvieron en cuenta aspectos legales, institucionales, económicos e informativos educativos, finalmente la incidencia en la gestión ambiental