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Heavy Metals, Sources, and Potential Risk Assessment of PM2.5 in the Vicinity of a Lead Smelter in Indonesia

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Abstract

This study aims to characterize the heavy metals in fine particulate matter PM2.5 in the vicinity of a lead smelter industry in Lamongan, Indonesia. The samples were collected using a dichotomous Gent stacked filter unit sampler. Eighteen elements were identified using energy-dispersive X-ray fluorescence (ED-XRF) for source identification and potential risk assessment. PM2.5 concentrations ranged from 7.3 to 30.6 µg/m3 with black carbon attributed to 19% of the mass. Pb was found as the dominant heavy metal, with an average concentration of 0.46 µg/m3, followed by other elements S, K, Fe, and Zn. Pb is attributed to an average of 2.7% of PM2.5. From principal component analysis (PCA), it was found that the potential sources were associated with lead smelter, biomass burning, road dust, vehicles, metal industry, and shipping emission. The results suggested that the lead smelter and metal industry have a major influence on the study area. The health risk assessment was carried out using the hazard quotient (HQ) and excess lifetime cancer risk (ELCR) for Pb, Cr, and Ni. The HQ value and the ELCR value of Pb were found to be slightly higher than the permissible acceptable level. The ELCR value of 1.81 × 10–6 indicates that approximately two cases of cancer per 1000,000 adult population at Lamongan may occur due to Pb contamination. To minimize the health risks, exposure to heavy metals in PM2.5 should be avoided as possible and the policy interventions should be implemented to control the lead smelter as major source of Pb pollutants in Lamongan, East Java.

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Data availability

The data that support the findings of this study are available at the BRIN repository, but restrictions apply to the availability of these data, which were used under license for the current study.

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Acknowledgements

The authors acknowledge the financial support from the Nuclear Energy Research Organization for this study. The authors acknowledged to Regional Cooperative Agreement Research Organization (RCARO) for the research contract RCARP01/RC2 to support this research.

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Contributions

DDL wrote the original draft, finalize the manuscript, visualization of data, data processing, data curation, data analysis, interpretation, and submitted the manuscript. MS designed and supervised. DPDA, RM, and FF were involved in the sample collection. IK and DKS carried out sample preparation and measurement, and ED and SK assisted in data management. Neither author has any conflicts of interest. DDL and MS are the main contributors to this article.

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Correspondence to Diah Dwiana Lestiani.

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The authors declare that they have no conflicts of interest related to this work.

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Lestiani, D.D., Santoso, M., Kurniawati, S. et al. Heavy Metals, Sources, and Potential Risk Assessment of PM2.5 in the Vicinity of a Lead Smelter in Indonesia. Aerosol Sci Eng 7, 283–293 (2023). https://doi.org/10.1007/s41810-023-00179-4

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  • DOI: https://doi.org/10.1007/s41810-023-00179-4

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