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Presence of Polycyclic Aromatic Hydrocarbons (PAHs) in Apple in Rural Terrains from Mexico City

  • Rutilio Ortiz Salinas
  • Gilberto Díaz González
  • Beatriz Schettino Bermudez
  • Rey Gutiérrez Tolentino
  • Salvador Vega y León
Article

Abstract

This paper describes PAH concentrations in apple crops that are growing in rural terrains in Mexico City. The concentrations of individual PAHs showed great variability, there being low and high molecular weight compounds in dry (high molecular weight for Tlahuac 7.06 μg/g and Milpa Alta 3.96 μg/g) and wet months (high molecular weight for Tlahuac 11.25 μg/g and Milpa Alta 12.05 μg/g). Some PAHs indicators and cross plot ratios Ant/(Ant + Phe) and Flu/(Flu + Pyr) define fossil fuels and vegetation combustion as the source of contamination over the cuticle of the apples. It is likely that deposition (dry and wet) is the principal source o f contamination over the apple surface. This study reveals the presence of PAHs in apples due to the high air contamination of Mexico City.

Keywords

Contamination Deposition PAHs 

Notes

Acknowledgments

This work was supported by the Metropolitan Autonomous University “Xochimilco” Campus. We also thank Eduardo Villegas for his part in sample treatment in the laboratory.

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Copyright information

© Springer Science+Business Media, LLC 2010

Authors and Affiliations

  • Rutilio Ortiz Salinas
    • 1
  • Gilberto Díaz González
    • 1
  • Beatriz Schettino Bermudez
    • 1
  • Rey Gutiérrez Tolentino
    • 1
  • Salvador Vega y León
    • 1
  1. 1.Laboratorio de Análisis Instrumental, Departamento de Producción Agrícola y AnimalUniversidad Autónoma Metropolitana Unidad XochimilcoCoyoacán, México D.F.Mexico

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