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Human health risk associated to particulate matter and polycyclic aromatic hydrocarbon levels and their relation with preponderant sources in Gran La Plata, Argentina

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Abstract

Levels of suspended particulate matter (PM) of both fractions PM10 and PM2.5 in ambient air were monitored in three areas of Gran La Plata: industrial, urban, and residential (2017–2019). Associated polycyclic aromatic hydrocarbons (PAHs) and nitropolycyclic aromatic hydrocarbons (NPAHs) to PM were also determined and possible emission sources were identified. Assessment of health risk to PM exposure and associated compounds was realized. Results showed a decrease in levels of PM10 in each area along the period studied, especially in the industrial area. Decreases in PM2.5 levels were also observed in urban and residential areas over the years, although the trend is not as marked as with PM10 levels. Then, PM2.5 levels in the industrial area have remained practically constant. The 89% of both PM10 and PM2.5 annual mean exceeds the WHO reference values. The presence of most of the 16 US EPA priority PAHs studied was found with a detection frequency greater than 60% and it was possible to identify the importance of the contributions of vehicular emissions as predominant sources of PAH emission. From the calculations of the risk of contracting cancer throughout life (LCR), in the case of adults, the US EPA limits were not complied in the industrial and urban areas and in both fractions of PM. From the evaluation of the burden of disease (EBD), the calculated relative risks of mortality were very similar for the studied districts, being the relative risk in La Plata slightly lower, about 3–5%, than those in Berisso and Ensenada.

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Acknowledgements

The authors would like to thank the Instituto de Desarrollo e Investigaciones Pediátricas (IDIP) and Universidad Tecnológica de La Plata (UTN) for their support to the present study.

Availability of data and materials

The datasets used and analyzed during the current study are available from the corresponding author on reasonable request.

Funding

This research is supported by the Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), the Ministerio de Ciencia, Tecnología e Innovación (MINCyT), the Comisión de Investigaciones Científicas de la Provincia de Buenos Aires (CIC PBA), and the Universidad Nacional de La Plata (UNLP).

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JECL and AA were major contributors in writing the manuscript. All authors read and approved the final manuscript.

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Correspondence to Daniela Giuliani.

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The authors declare no competing interests.

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Responsible Editor: Lotfi Aleya

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Giuliani, D., Colman Lerner, J.E. & Porta, A. Human health risk associated to particulate matter and polycyclic aromatic hydrocarbon levels and their relation with preponderant sources in Gran La Plata, Argentina. Environ Sci Pollut Res 28, 35226–35241 (2021). https://doi.org/10.1007/s11356-021-13138-8

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  • DOI: https://doi.org/10.1007/s11356-021-13138-8

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