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Chemical composition and risk assessment of spring barley grown in artificially contaminated soil

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Abstract

A model contaminated system was developed to determine mechanisms of napthalene bioaccumulation and effect on the mineral composition of spring barley grain and straw grown in the Calcari-Endohypogleyic Luvisol. The soil was mixed with green waste compost and spiked with naphthalene which concentration varied from 0 to 500 ppm. Obtained results indicate that naphthalene additive at the concentration rate from 100 to 500 ppm reduced spring barley germination. The significant lower weight of green mass per pot, one plant weight and mass of 1000 grains were observed in the amendment with the highest naphthalene concentration (500 ppm). It was determined the daily intake (ED) of 16PAHs via spring barley grain and incremental lifetime cancer risks (ILCR). Estimated ED and ILCR of 16PAHs via spring barley ranged from 1.00 to 3.78 ng day−1 and 3.79 to 14.3 × 10−5 respectively. It should be noted that obtained results are higher around 10 times compared to previous studies performed using wheat grain. This study presents the mechanisms of naphthalene bioaccumulation and effect on the mineral composition of the most common agricultural plant spring barley grain and straw. Spring barley grain was found to have a higher content of nitrogen (N), boron (B) and phosphorous (P), whereas straw had a higher content of potassium (K), sodium (Na), chromium (Cr) and calcium (Ca).

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The data and materials that support the findings of this study are openly available on request.

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Acknowledgements

K. Barčauskaitė would like to thank COST Action 19116 Trace metal metabolism in plants - PLANTMETALS.

Funding

Part of this work was carried out with the support of core facilities of RECETOX Research Infrastructure, grant number LM2015051, funded by Ministry of Education, Youth and Sports of the Czech Republic under the activity “Projects of major infrastructures for research, development and innovations” and by Research Council of Lithuania under grant number 09.3.3.-LMT-K-712-07-0086.

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Karolina Barčauskaitė carried out the research, data analysis, visualization and wrote the original draft. Romas Mažeika performed supervision and revisions of the manuscript.

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Correspondence to Karolina Barčauskaitė.

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The authors declare that they have no conflict of interest.

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Responsible Editor: Gangrong Shi

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Barčauskaitė, K., Mažeika, R. Chemical composition and risk assessment of spring barley grown in artificially contaminated soil. Environ Sci Pollut Res 28, 21684–21695 (2021). https://doi.org/10.1007/s11356-020-12074-3

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  • DOI: https://doi.org/10.1007/s11356-020-12074-3

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