Heavy metals in soil: mobility as a criterion of environmental hazard

Authors

  • N. Makarenko National University of Bioresources and Nature Conservation of Ukraine , National University of Bioresources and Nature Conservation of Ukraine
  • V. Makarenko National University of Bioresources and Nature Conservation of Ukraine

DOI:

https://doi.org/10.31548/biologiya2019.02.044

Abstract

The article presents results of researchthe relationship between mobility of heavy metals and soil parameters for the subsequent forecast their environmental hazard.For the characteristics of mobile formsofheavymetalsinthesoilusedcomplexextractantstransportationgrossstockofheavy metals in soils were taken away by a mixture of H2SO4+HF, potentially mobile form -1, 0 N HCL, mobile- 0,1N HCL. Examinedthesoil, characteristicforzonesofPolissya, Forest-steppeandSteppeUkraine.

Itwasfoundthatonthebackgroundofincreasingthecontentofgrossformsofheavymetalsfrompodzolsoilstochernozemsmollic, theircontentsinmobileformsinthefuture. Theshareofmobileformsofmetals (m+ n) inthepodzolsoilranged 29.0-62.5 %, chernozemsmollic – 2.8-21.9 %.

Selected characteristics of the soil, the mobility of heavy metals contents of clay minerals (the < 0.001 mm), thecontentoforganicmatterinthesoil, soilpH.Dose inverse correlation was observed between the contents of clay minerals and the contents of mobile forms of heavy metals in the soil, r ranged from (-) 0.643 (-) 0.962.

It was shown that the actual danger of heavy metals you need to evaluate the contents of mobile forms, extract with 0.1 N acids, the potential is 1.0 N acids. Prediction of danger of heavy metals must take into account the parameters of soils: physical clay, organic matter and Ph.

Keywords: heavy metals, soil, mobility, environmental safety.

References

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Published

2019-03-15

Issue

Vol. 10 No. 2 (2019)

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