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Selenium in Hungary. The rock-soil-human system.

F Gondi1, G Pantó, J Fehér

  • 1Hungarian Academy of Sciences, Laboratory for Geochemical Research, Budapest.

Biological Trace Element Research
|December 1, 1992
PubMed
Summary
This summary is machine-generated.

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Hungarian soils and human selenium (Se) levels are low. This study investigated selenium geochemistry in Hungarian rocks and soils, revealing low Se content, particularly in agricultural areas. Human serum samples also indicated a low average Se status across the population.

Area of Science:

  • Geochemistry
  • Environmental Science
  • Human Health

Background:

  • Limited data exists on selenium (Se) status in Hungarian rock-soil systems.
  • Understanding Se geochemistry is crucial for assessing regional human health implications.
  • Previous investigations into Hungarian Se levels have been insufficient.

Purpose of the Study:

  • To characterize the main features of Se geochemistry in Hungarian rock-soil systems.
  • To assess the human Se status in Hungary through serum analysis.
  • To develop a method for future systematic regional Se investigations.

Main Methods:

  • Stream sediment and rock-soil profile sampling across Hungary.
  • Extraction of mobile selenium fractions from soil samples.

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  • Analysis of human serum samples from blood donors in urban and rural districts.

    • Main Results:

    • Hungarian rock-soil systems, particularly acid igneous rocks and young sediments (loess, sand), exhibit low selenium content.
    • Agricultural areas, often situated on these low-Se formations, are identified as critical.
    • Mean serum selenium levels in the studied Hungarian population were found to be low.

    Conclusions:

    • Hungarian geological formations and associated soils are generally deficient in selenium.
    • The human population in Hungary, based on serum analysis, exhibits a low selenium status.
    • The study provides a foundation for systematic regional selenium investigations in Hungary.