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Atmospheric Metal Biomonitoring Along a Highway Near Atlantic Rainforest Environmental Protection Areas in Southeastern Brazil

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Abstract

Vehicles are quite possibly the main sources of particulate matter, and their emissions can cause damage to surrounding ecosystems. Traditional atmospheric monitoring, however, is expensive. Therefore, airborne biomonitoring is an alternative method that allows for air quality assessment. In this study, we evaluated air quality at a federal highway (BR-040) close to Atlantic Rainforest remnants by quantifying metals in biomonitor tissues by ICP-MS. Tillandsia usneoides and Tillandsia stricta plants were relocated to the investigation zone and collected after five months of exposure. Metal concentration profiles were evaluated using statistical analyses, namely exposure-to-reference (ER) ratios and enrichment factors (EF). Results indicate that V, Cr, Fe, Cu, Zn and Sn enrichment were observed in all study sites. The EF for Cr, Mn, Pb, Ni, Co, Cu, Zn, Cd, and Sn ranged from high to very high, indicating anthropogenic sources. Both species were effective atmospheric biomonitors, proving to be an important tool, mainly in areas where conventional monitoring is not possible.

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Acknowledgements

This study was financed in part by the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior – Brasil (CAPES) – Finance Code 001.The authors thank to CNPq and FAPERJ for research grants and financial support and Laboratório de Estudos de Poluição Atmosférica (LEPA) da Universidade Federal do Rio de Janeiro (UFRJ) for the contribution to the sampling of plants.

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All authors contributed to the study conception and design. Material preparation, data collection and analysis were performed by KB. The first draft of the manuscript was written by KB and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.

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Correspondence to Adriana Gioda.

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Beringui, K., Huamán De La Cruz, A.R., Maia, L.F.P.G. et al. Atmospheric Metal Biomonitoring Along a Highway Near Atlantic Rainforest Environmental Protection Areas in Southeastern Brazil. Bull Environ Contam Toxicol 107, 84–91 (2021). https://doi.org/10.1007/s00128-021-03185-9

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  • DOI: https://doi.org/10.1007/s00128-021-03185-9

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