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Nanotechnology

Nanoparticles in Agricultural Soils: A Concern for Environment and Water Quality

Strategic Insights

— 1 min read

Researchers at the Swedish University of Agricultural Sciences have published a study highlighting the potential risks of colloids and nanoparticles leached from agricultural land on water bodies. The investigation used advanced X-ray micro-spectroscopy methods to analyze the speciation of phosphorus and sulfur in two fractions of leached particles. The findings suggest that colloids and nanoparticles are major carriers of potentially bioavailable nutrients, which can contribute to eutrophication of water bodies.

Key Takeaways:

  • The study revealed that colloids and nanoparticles leached from agricultural land are significant carriers of potentially bioavailable nutrients, including phosphorus and sulfur.
  • The research utilized multi-elemental synchrotron X-ray fluorescence (XRF) microscopy with multivariate spatial analysis and X-ray atomic absorption near-edge structure (XANES) spectroscopy at the P and S K-edges to analyze the speciation of P and S in two fractions of leached particles.
  • The study found that these nutrients can contribute to eutrophication of water bodies, highlighting the need for effective technologies to mitigate colloidal-driven eutrophication.
  • The research has implications for developing technologies to reduce the environmental impact of agricultural practices.
  • The collaboration among researchers from the Swedish University of Agricultural Sciences, including Gbotemi A. Adediran, Daniel Lundberg, Gunnar Almkvist, Ana E. Pradas Del Real, Wantana Klysubun, Stephen Hillier, Jon Petter Gustafsson, and Magnus Simonsson, demonstrated the importance of interdisciplinary research in understanding complex environmental issues.
  • The study was peer-reviewed and published in Water Research, a reputable scientific journal.

Statistics:

  • The study analyzed two fractions of leached particles, 0.45 and 0.007 mm, using XRF microscopy and XANES spectroscopy.
  • The research researchers used XRF microscopy to study the speciation of P and S in the two fractions of leached particles.
  • The study found that colloids and nanoparticles are major carriers of potentially bioavailable nutrients, with implications for water quality and environmental sustainability.
  • The research aims to develop effective technologies to mitigate colloidal-driven eutrophication of water bodies near agricultural land.

Sources:

  • "Micro and nano sized particles in leachates from agricultural soils: Phosphorus and sulfur speciation by X-ray micro-spectroscopy." Water Research, Volume 189, 2020, Article 116585, ISSN 0043-1354, https://doi.org/10.1016/j.watres.2020.116585.
  • NewsRx. New Nanoparticles Findings from Swedish University of Agricultural Sciences Outlined (Micro and nano sized particles in leachates from agricultural soils: Phosphorus and sulfur speciation by X-ray micro-spectroscopy). Agriculture Week. December 17, 2020; p 3239.

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