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Physicochemical Characterization and Evaluation of the Cytotoxic Effect of Particulate Matter (PM10)

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Abstract

Particulate matter arising from different sources affects air quality, representing a risk for human health and the environment. The Valle de Aburrá, Colombia, is facing serious air pollution conditions due to its geographical location and the continuous vehicle fleet growth. In this study, the chemical composition and morphology of the PM10 (particulate matter with aerodynamic diameter < 10 μm) collected at monitoring stations across the Valle de Aburrá, were studied by using thermogravimetric analysis (TGA), elemental analysis, scanning electron microscope/energy-dispersive X-ray spectrometer (SEM/EDS), and gas chromatography-mass spectrometry (GC–MS). Additionally, the potential of PM10-induced cytotoxic and oxidative effects was evaluated using peripheral blood mononuclear cells (PBMCs).

The PM10 from Valle de Aburrá has a chain morphology and particles of irregular shape; it is mainly composed of ashes (54.8%), followed by volatiles and fixed carbon. Furthermore, different metals were found in PM10, including Si, Fe, K, Na, Al, Cr, and Pt. On the other hand, the polycyclic aromatic hydrocarbon (PAH) analysis showed benz[a]anthracene levels at 6.71 ng cm−2 which may act as a potent carcinogen by generating various reactive metabolic intermediates leading to oxidative stress. These results are consistent with the cytotoxic effect and the production of ROS observed in PBMCs.

Finally, the results suggest that the PM10 of the Valle de Aburrá is mainly arising from construction waste transport, coal combustion to generate energy, and vehicles, representing a potential health risk for the citizens.

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Data Availability

The datasets used and/or analyzed during the current study will be available at figshare.com.

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Acknowledgements

The authors would like to thank Sistema de Alerta Temprana (SIATA) and the Área Metropolitana del Valle de Aburrá (AMVA). We also acknowledge Carlos David Hoyos and Laura Herrera Mejia for their support in collecting the PM10 samples. We acknowledge the help of Maria T. Rugeles for critically reading and reviewing the manuscript. Universidad de Antioquia UdeA, Universidad Cooperativa de Colombia, and Corporación Universitaria Remington.

Funding

Funding for this study was supported by Minciencias (Grant: 141580763047), Universidad Cooperativa de Colombia, and Corporación Universitaria Remington.

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Authors and Affiliations

Authors

Contributions

DMP, JFN, JPL, NAT, JCH: conceptualization, writing—original draft.

DMP, JDG, JCH: writing—original draft

DMP, JDG, JFN, JPL, NAT, JCH: writing—review and editing

DMP, JDG: investigation, formal analysis

Corresponding author

Correspondence to Juan C. Hernandez.

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Ethics approval

This study was performed in line with the principles of the Declaration of Helsinki. Approval was granted by the research ethics committee of the Universidad Cooperativa de Colombia (Act 003 of 2018).

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According to ethical guidelines, all healthy controls signed a written informed consent.

Competing Interests

The authors declare no competing interests.

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Marin-Palma, D., González, J.D., Narváez, J. et al. Physicochemical Characterization and Evaluation of the Cytotoxic Effect of Particulate Matter (PM10). Water Air Soil Pollut 234, 138 (2023). https://doi.org/10.1007/s11270-023-06155-5

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  • DOI: https://doi.org/10.1007/s11270-023-06155-5

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