Salud Pública de México

Spatial distribution of manganese concentration and load in street dust in Mexico City

Anahí Aguilera, Francisco Bautista, Avto Gogichaichvili, Margarita Eugenia Gutiérrez-Ruiz, Agueda E Ceniceros-Gómez, Norma Ruth López-Santiago

Resumen


Objective. To obtain a first indication of the distribution and extent of manganese (Mn) contamination in Mexico City. Mn concentration and load in street dust were analyzed in order to reveal the most contaminated areas. Materials and methods. 482 samples of street dust were analyzed through inductively coupled plasma-optical emission spec­troscopy. The contamination factor (CF), the geoaccumula­tion index (Igeo) and the spatial interpolations of the kriging indicator were calculated. Results. A slight influence of anthropogenic activities is detected on the Mn content of street dust. The highest levels of pollution by concentra­tion (Igeo=uncontaminated to moderately contaminated) are grouped towards the city’s north (industrial) and center (commercial and high traffic) areas. The areas with the high­est Mn load were located towards the east and northwest areas (Igeo=moderately contaminated). Conclusions. These findings will serve as a baseline to assess future variations in Mn content in Mexico City’s environment.


Palabras clave


manganese; environmental pollution; dust

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DOI: http://dx.doi.org/10.21149/10577

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Salud Pública de México es una publicación periódica electrónica, bimestral, publicada por el Instituto Nacional de Salud Pública (con domicilio en Avenida Universidad núm. 655, col. Santa María Ahuacatitlán, Cuernavaca, Morelos, C.P. 62100, teléfono 329-3000, página web, www.insp.mx), con ISSN: 1606-7916 y Reserva de Derechos al Uso Exclusivo con número: 04-2012-071614550600-203, ambos otorgados por el Instituto Nacional del Derecho de Autor. Editor responsable: Carlos Oropeza Abúndez. Responsable de la versión electrónica: Subdirección de Comunicación Científica y Publicaciones, Avenida Universidad núm. 655, planta baja, col. Santa María Ahuacatitlán, Cuernavaca, Morelos, C.P. 62100, teléfono 329 3000. Fecha de última modificación: 11 de abril de 2019. D.R. © por el sitio: Instituto Nacional de Salud Pública.

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