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Thermal paper as a potential source of bisphenol A for humans and the environment: migration and ecotoxicological impact

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Abstract

The objective of this work was to evaluate thermal paper (TP) tickets used in Argentina as a potential source of bisphenol A (BPA) that could impact humans and the environment. BPA in TP was measured by HPLC ranging from 11.1 to 30.5 mg BPAg−1. In order to estimate the impact on humans, dermal BPA estimated daily intake was calculated as being 79.3 ± 19.5 μgd−1 for workers and 1.6 ± 0.4 μgd−1 for the general population. To evaluate TP’s impact on the environment, BPA migration from TP to water and soil was studied. In the case of water, 99.6% of the BPA tickets content migrated in 30 h, while 78.0% moved into the soil in 96 h. BPA degradation kinetics in soil and water were also carried out; while in soil 61.9% of BPA degraded in 120 h, no degradation was observed up to 120 h in tap or river water.

Additionally, ecotoxicological effects of BPA on the earthworm Eisenia andrei, a representative terrestrial indicator, were studied performing bioassays on lethality, avoidance, and reproductive and enzymatic activity. BPA showed to be very toxic to E. andrei (LC50 value in contact paper test of 17 μgcm−2, 95% confidence interval 6–46 μgcm−2, 24 h exposure) and also caused an increase of total cocoons for earthworms exposed to 10 and 50 mg BPA kg−1 soil. Evasion response was observed at a concentration of 50 mg BPA kg−1 soil, while no effect was observed on cholinesterases, carboxylesterases, and glutathione S-transferases activities (1, 10, and 50 mg BPA kg−1 soil). Finally, a simple BPA degradation technology using water peroxide and radish (Raphanus sativus) tissue as catalyst was explored as a simple and domestic potential treatment to avoid BPA migration to the environment.

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Acknowledgements

SN thanks UNGS for a postgraduate fellowship. GB and GF thank CONICET for a postdoctoral and doctoral fellowship respectively. JMM is a CONICET member.

Data availability

All data generated or analysed during this study are included in this published article (and its supplementary information files). Any experimental detail needed can be electronically required to the corresponding authors.

Funding

This work has been financially supported by the Universidad Nacional de General Sarmiento and CONICET (PIO-UNGS 2015-2016 14420140100012CO).

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SN: Investigation, field studies, and method development. EB: Investigation, field studies, and method development. GFF: Investigation, field studies, and method development. CI: Investigation, field studies, and method development. GB: Investigation, field studies, method development, and paper review. SB: Conceptualization, investigation, field studies, original draft writing, editing, and general supervision. JMM: Conceptualization, investigation, field studies, original draft writing, editing, general supervision, and funding acquisition.

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Correspondence to Silvana Basack or Javier M. Montserrat.

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The authors declare no competing interests.

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Nasello, S., Beiguel, É., Fitó-Friedrichs, G. et al. Thermal paper as a potential source of bisphenol A for humans and the environment: migration and ecotoxicological impact. Environ Sci Pollut Res 29, 53382–53394 (2022). https://doi.org/10.1007/s11356-022-19561-9

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  • DOI: https://doi.org/10.1007/s11356-022-19561-9

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