Carcinogenic Polycyclic Aromatic Hydrocarbons in Vegetables Marketed in Mashhad: Levels, Dietary intakes, and Health Risk

Document Type : Research Paper

Author

Department of Health Education and Health Promotion, Faculty of Health, Mashhad University of Medical Sciences, Mashhad, Iran.

Abstract

Vegetables and fruit cultivation is a main food source for human population. However, different types of pollutants contaminate vegetables products like polycyclic aromatic hydrocarbons (PAHs). Human exposure to PAHs via potential food sources is not well investigated. Therefore, this study aimed to determine PAHs concentrations, dietary intakes, and health risks through the consumption of vegetables collected from urban areas in Mashhad, Iran.  Chemical analysis was conducted on 75 vegetable samples were collected from markets in Mashhad including three root and leafy vegetables. The human health risk assessment (HHRA) model was used to measure the dietary intake and lifetime health risk of PAHs through the consumption of vegetables. The concentrations of total PAHs were ranged from 0.564± 0.162 to 2.211± 0.834 μg kg −1 in all vegetables. The level of health risks of PAHs was below the acceptable risk level (HI < 1) for adults, while the health risk for children was higher than the acceptable risk level in some vegetable samples. Among the carcinogenic PAH congeners, BaA, Chr, and DbA were predominant for adult and children populations. Overall, the total health risk of PAHs for both groups was borderline or higher than the acceptable level of US EPA risk, suggesting the possibility of health risk for the adults and children to the PAHs via vegetable ingestion. Therefore, appropriate control measures and intervention programs need to be used to protect the health of the residents in this study area.

Keywords

References

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History

  • Receive Date: 21 November 2021
  • Revise Date: 02 December 2021
  • Accept Date: 12 December 2021

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