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The Influence of Environmental Polycyclic Aromatic Hydrocarbons (PAHs) Exposure on DNA Damage among School Children in Urban Traffic Area, Malaysia

Author

Listed:
  • Nur Hazirah Hisamuddin

    (Department of Environmental and Occupational Health, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia (UPM), Serdang 43400, Malaysia)

  • Juliana Jalaludin

    (Department of Environmental and Occupational Health, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia (UPM), Serdang 43400, Malaysia)

  • Suhaili Abu Bakar

    (Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia (UPM), Serdang 43400, Malaysia)

  • Mohd Talib Latif

    (Department of Earth Sciences and Environment, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, Bangi 43600, Malaysia)

Abstract

This study aimed to investigate the association between particulate PAHs exposure and DNA damage in Malaysian schoolchildren in heavy traffic (HT) and low traffic (LT) areas. PAH samples at eight schools were collected using a low volume sampler for 24 h and quantified using Gas Chromatography-Mass Spectrometry. Two hundred and twenty-eight buccal cells of children were assessed for DNA damage using Comet Assay. Monte-Carlo simulation was performed to determine incremental lifetime cancer risk (ILCR) and to check the uncertainty and sensitivity of the estimated risk. Total PAH concentrations in the schools in HT area were higher than LT area ranging from 4.4 to 5.76 ng m −3 and 1.36 to 3.79 ng m −3 , respectively. The source diagnostic ratio showed that PAHs in the HT area is pyrogenic, mainly from diesel emission. The 95th percentile of the ILCR for children in HT and LT area were 2.80 × 10 −7 and 1.43 × 10 −7 , respectively. The degree of DNA damage was significantly more severe in children in the HT group compared to LT group. This study shows that total indoor PAH exposure was the most significant factor that influenced the DNA damage among children. Further investigation of the relationship between PAH exposure and genomic integrity in children is required to shed additional light on potential health risks.

Suggested Citation

  • Nur Hazirah Hisamuddin & Juliana Jalaludin & Suhaili Abu Bakar & Mohd Talib Latif, 2022. "The Influence of Environmental Polycyclic Aromatic Hydrocarbons (PAHs) Exposure on DNA Damage among School Children in Urban Traffic Area, Malaysia," IJERPH, MDPI, vol. 19(4), pages 1-18, February.
    • Handle: RePEc:gam:jijerp:v:19:y:2022:i:4:p:2193-:d:749911
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    References listed on IDEAS

    as
    1. Nor Ashikin Sopian & Juliana Jalaludin & Suhaili Abu Bakar & Titi Rahmawati Hamedon & Mohd Talib Latif, 2021. "Exposure to Particulate PAHs on Potential Genotoxicity and Cancer Risk among School Children Living Near the Petrochemical Industry," IJERPH, MDPI, vol. 18(5), pages 1-20, March.
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