Issues:
Sections:
Issue 95
GENERAL BIOLOGY
UDK: 631.416.8(470.67)
THE EXPERIENCE OF STUDYING THE SOILS OF THE SULAK LOWLAND FOR HEAVY METAL CONTENT
BIARSLANOV Akhmed Biysoltanovich,
AZIEVA Dzhamilat S.,
SHIKHALIEV Alibek Z.
The paper presents data on the study of the gross content of heavy metals in the soils of the Sulak lowland. The research has been carried out by one of the most common methods of monitoring heavy metals - the atomic absorption spectrometry. No Zn and Cd have been found in the studied soils, and a single case occurred in the meadow soils at the depth of 5-15 cm. The Zn content is 8.05 mg/kg. It is revealed that the content of gross forms of heavy metals in the root horizons of the studied soils is quite low and varies depending on the type of the soil. It has been established that manganese has the highest content among heavy metals. Meadow salt marsh soils are characterized by high concentration of manganese 155.0-179.7 mg/kg, and the same element in the light chestnut soils is 25.47-54.30 mg/kg and meadow chestnut - 85-96.56 mg/kg. The study shows that the concentration of heavy metals in the light chestnut soil decreases in the following order: Mn > Ni > Pb >Cu > Co, in the meadow salt marsh soil Mn > Zn > Ni > Cu > Pb> Co, in the meadow chestnut soil Mn > Ni > Pb > Cu > Co. As a result, it has been found that the soil contamination in terms of heavy metals does not exceed the maximum permissible concentrations.
Pages: 38 - 44
Date: 23.12.2024