Título

Atmospheric Distribution of PAHs and Quinones in the Gas and PM1 Phases in the Guadalajara Metropolitan Area, Mexico: Sources and Health Risk

Autor

VALERIA OJEDA CASTILLO

ALBERTO LOPEZ LOPEZ

Leonel Hernández Mena

MARIO ALFONSO MURILLO TOVAR

José de Jesús Díaz Torres

IVAN YASSMANY HERNANDEZ PANIAGUA

Jorge del Real Olvera

Elizabeth León Becerril

Nivel de Acceso

Acceso Abierto

Licencia

http://creativecommons.org/licenses/by-nc-nd/4.0

Referencia de publicación

doi: https://doi.org/10.3390/atmos9040137

Materias

MEDICINA Y CIENCIAS DE LA SALUD - (CTI) MEDICINA Y CIENCIAS DE LA SALUD - (CTI)

Resumen o descripción

"Polycyclic aromatic hydrocarbons (PAHs) and quinones in the gas phase and as submicron particles raise concerns due to their potentially carcinogenic and mutagenic properties. The majority of existing studies have investigated the formation of quinones, but it is also important to consider both the primary and secondary sources to estimate their contributions. The objectives of this study were to characterize PAHs and quinones in the gas and particulate matter (PM1) phases in order to identify phase distributions, sources, and cancer risk at two urban monitoring sites in the Guadalajara Metropolitan Area (GMA) in Mexico. The simultaneous gas and PM1 phases samples were analyzed

using a gas chromatography–mass spectrometer. The lifetime lung cancer risk (LCR) due to PAH exposure was calculated to be 1.7 10􀀀3, higher than the recommended risk value of 10􀀀6, indicating a potential health hazard. Correlations between parent PAHs, criteria pollutants, and meteorological parameters suggest that primary sources are the main contributors to the S8 Quinones concentrations in PM1, while the secondary formation of 5,12-naphthacenequinone and 9,10-anthraquinone may contribute less to the observed concentration of quinones. Additionally, naphthalene, acenaphthene, fluorene, phenanthrene, and anthracene in PM1, suggest photochemical degradation into unidentified

species. Further research is needed to determine how these compounds are formed."

Editor

MDPI

Fecha de publicación

abril de 2018

Tipo de publicación

Artículo

Versión de la publicación

Versión publicada

Recurso de información

http://ciatej.repositorioinstitucional.mx/jspui/handle/1023/709

Formato

application/pdf

Fuente

Atmosphere 2018, 9, 137.

Idioma

Inglés

Audiencia

Bibliotecarios

Estudiantes

Investigadores

Sugerencia de citación

Ojeda-Castillo, V.; López-López, A.; Hernández-Mena, L.; Murillo-Tovar, M.A.; Díaz-Torres, J.D.J.; Hernández-Paniagua, I.Y.; Del Real-Olvera, J.; León-Becerril, E. Atmospheric Distribution of PAHs and Quinones in the Gas and PM1 Phases in the Guadalajara Metropolitan Area, Mexico: Sources and Health Risk. Atmosphere 2018, 9, 137.

Repositorio Orígen

Repositorio Institucional de CIATEJ

Descargas

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