Título

Anthropogenic Particles Study of Chihuahua-Mexico, Morphology and Elemental Composition

Autor

BALTER TRUJILLO NAVARRETE

FRANCISCO PARAGUAY DELGADO

ALFREDO CAMPOS TRUJILLO

Nivel de Acceso

Acceso Abierto

Licencia

http://creativecommons.org/about/cc0/

Materias

Anthropogenic particles - (MORPHOLOGY AND ELEMENTAL COMPOSITION) BIOLOGÍA Y QUÍMICA - (CTI) QUÍMICA - (CTI) OTRAS ESPECIALIDADES QUÍMICAS - (CTI) OTRAS - (CTI)

Resumen o descripción

The urban aerosol has been studied in general and there are few detailed analyzes that determine

the specific contribution of anthropogenic sources, we study ten industrial production process

located in Chihuahua, City. According to the permanent report by Air-Quality-Monitoring-

System about the particulate matter level from the city, it is close to the regulatory limit level and

missing information concerning the type of morphology and elemental composition of particles

size minor to 1.0 μm. The main goal of this study was to characterize the individual morphology

and elemental composition of anthropogenic particulate matter generated in this city. The

particles samples were collected during 2009 between June and August, the monitoring time was

around 20 minutes. We used Eight-Stage-Non-Viable-cascade-Impactor-Mark-II and selected

aerodynamic diameter 1.1μm for study in detailed. TEM-grid was placed at this stage to

collected sample; they were studied by transmission electron microscope model CM-200-

Philips® with elemental analysis system. The NIH ImageJ software was used for treatment and

analyses the acquired images. From 358 particles analyzed we determined mean values for

diameter of Feret (DF), compactness ratio (C), lacunarity (Lm and Lp), perimeter and density

fractal dimension (Dm and Dp). From data analyzed we can classify into four morphology types,

and they are spherical for polymeric, irregular shape for ceramic, cubic for metallic and

aggregates for fuel oil handling. The elemental composition is related with morphologies, we

find clearly typical morphologies categorically distinguishable.

Fecha de publicación

2010

Tipo de publicación

Memoria de congreso

Versión de la publicación

Versión enviada

Recurso de información

http://cimav.repositorioinstitucional.mx/jspui/handle/1004/1306

Formato

application/pdf

Idioma

Inglés

Repositorio Orígen

Fuente de Objetos Científicos Open Access

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