Display options
Cite
Causapé J, Orellana-Macías JM, Valero-Garcés B, et al. Influence of hail suppression systems over silver content in the environment in Aragón (Spain). II: Water, sediments and biota. Sci Total Environ. 2021;779:146403doi: 10.1016/j.scitotenv.2021.146403.
Causapé, J., Orellana-Macías, J. M., Valero-Garcés, B., & Vázquez, I. (2021). Influence of hail suppression systems over silver content in the environment in Aragón (Spain). II: Water, sediments and biota. The Science of the total environment, 779146403. https://doi.org/10.1016/j.scitotenv.2021.146403
Causapé, Jesús, et al. "Influence of hail suppression systems over silver content in the environment in Aragón (Spain). II: Water, sediments and biota." The Science of the total environment vol. 779 (2021): 146403. doi: https://doi.org/10.1016/j.scitotenv.2021.146403
Causapé J, Orellana-Macías JM, Valero-Garcés B, Vázquez I. Influence of hail suppression systems over silver content in the environment in Aragón (Spain). II: Water, sediments and biota. Sci Total Environ. 2021 Jul 20;779:146403. doi: 10.1016/j.scitotenv.2021.146403. Epub 2021 Mar 17. PMID: 33752012.
Copy Download .nbib Format: NLM
Share it on

Sci Total Environ. 2021 Jul 20;779:146403. doi: 10.1016/j.scitotenv.2021.146403. Epub 2021 Mar 17.

Influence of hail suppression systems over silver content in the environment in Aragón (Spain). II: Water, sediments and biota.

The Science of the total environment

Jesús Causapé, José María Orellana-Macías, Blas Valero-Garcés, Iciar Vázquez

Affiliations

  1. Instituto Geológico y Minero de España, 50006 Zaragoza, Spain. Electronic address: [email protected].
  2. Instituto Geológico y Minero de España, 50006 Zaragoza, Spain; Universidad de Zaragoza, 50006 Zaragoza, Spain.
  3. Instituto Pirenaico de Ecología (CSIC), 50059 Zaragoza, Spain.
  4. Instituto Geológico y Minero de España, 28760 Tres Cantos, Madrid, Spain.

PMID: 33752012 DOI: 10.1016/j.scitotenv.2021.146403

Abstract

The silver content in soils in the area in the surroundings of the Gallocanta Lake (Aragón, NE Spain) is lower than expected considering the estimated silver emission during the last 50 years by hail suppression systems. To understand the silver accumulation processes, selected water (4 surface, 3 groundwater), biota and sediment (6 surface sediments and 3 cores from Gallocanta and Campillo de Dueñas Lakes and Used Reservoir) samples have been analysed. An essay comparing the growth of wheat in pots with different silver iodide concentrations has been carried out. Finally, silver content in 7 tissues from two sheep that graze in areas both with and without hail suppression systems during 6-8 years were analysed. Our results show that after 50 years of silver iodide emissions to the atmosphere, silver accumulation in the waters and sediments of the lowlands, including some wetlands of high ecological value, has not been significant. Sediment cores did not show any peaks associated to silver emission. We propose that constant absorption of silver by plants could explain the low concentration in water and sediments. Crops and grass could accumulate the excess silver, as both wheat and sheep are able to absorb significant amounts of silver. These bio - accumulation processes could have helped to avoid a progressive environmental deterioration of the surroundings of the Gallocanta Lake. However, this hypothesis should be corroborated and quantified by further research on the analysis of natural and agricultural areas under the influence of hail suppression systems.

Copyright © 2021 Elsevier B.V. All rights reserved.

Keywords: Environmental assessment; Gallocanta Lake; Lake sediment; Plant absorption; Silver iodide

Conflict of interest statement

Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this pa

Publication Types