scholarly journals Intensity of Soil Pollution by Toxic Substances Depending on the Degree of Its Washout

2021 ◽  
Vol 24 (3) ◽  
pp. 52-57
Author(s):  
Oleksandr Tkachuk ◽  
Victoria Verhelis
Keyword(s):  
Heavy Metals ◽  
Humus Content ◽  
Significant Degree ◽  
Toxic Substances ◽  
Erosion Processes ◽  
Horizontal Migration ◽  
Mobile Phosphorus ◽  
Mobile Forms ◽  
Study Results ◽  
Contamination Of Soils

A significant degree of ploughness of agricultural lands of Ukraine has led to increased erosion and the creation of soils of varying degrees of washout, which leads to dehumification and contamination of soils with toxic substances. Therefore, the purpose of the study was to establish the features of horizontal migration and accumulation of heavy metals of lead, cadmium, copper, and zinc, trace elements of boron and manganese, radionuclides of caesium and strontium on podzolic heavy loamy chernozems with varying degrees of washout: non-eroded, weak and medium washout, conditioned by the development of erosion processes. During the study, spectrophotometric, colorimetric, gamma-spectrometric, and radiochemical methods were used to determine the content of toxic substances in the soil. The study results showed that on slightly washed soils, the content of humus is 12.9% less, easily hydrolysed nitrogen – 13.3%, mobile forms of phosphorus – 51.1%, mobile potassium – 34.9% less than on slightly washed soils. The humus content on medium-washed soil was 8.8% less than on lightly washed soil, easily hydrolysed nitrogen – 14.3% less, mobile phosphorus – 15.3% more, mobile potassium – 42.9% more. A strong horizontal migration of mobile lead forms in washed podzolic heavy loamy chernozem was established, which increases with increasing degree of soil washout with the content of mobile lead forms on medium-washed soil by 24% more than on non-eroded soil. The same dependence was established on the content of mobile forms of zinc in the soil, with their predominance on medium-washed soil by 17 %, compared to non-washed. The content of mobile forms of copper is lower on slightly washed soil, compared to non – washed soil by 5%, boron – 18.8% less on non-washed soil, compared to medium-washed, and the content of mobile forms of manganese increases by 3.3% from slightly to medium-washed soil. It was also found that the concentration of caesium decreased by 25.6% on medium-washed soils, compared to non-washed ones

scholarly journals Monitoring of technogenic soil pollution in manufacture

2021 ◽  
Author(s):  
B.E. Gubasheva ◽  
M.A. Khassenova ◽  
E.K. Akkereyeva
Keyword(s):  
Heavy Metals ◽  
Soil Cover ◽  
Humus Content ◽  
Gas Processing ◽  
Mobile Forms ◽  
West Kazakhstan ◽  
A Chain ◽  
Ph Level ◽  
The City

The growth of production zones in the city of Aksai in the West Kazakhstan region leads to contamination of the soil cover, which, in turn, causes a chain reaction of pollution. Due to soil contamination, soil moisture and the underground surface are polluted. As a result, the processes in the soil change, the vital activity of plants, animals and microorganisms are disrupted. The article presents data on the study of changes in soil cover under the influence of human activity. The results of the conducted studies on the determination of the humus content and pH level, the content of heavy metals in technogenically disturbed soils in the adjacent territory of the natural gas processing enterprise are presented. The obtained data on the gross content and mobile forms of heavy metals indicates that the maximum permissible concentration level for these pollutants is not exceeded.

scholarly journals SOIL MONITORING IN THE ZONE OF INFLUENCE OF ASPHALT-CONCRETE PLANT

2019 ◽  
pp. 4-7
Author(s):  
A.D. Shakirova ◽  
A.A. Islamova
Keyword(s):  
Heavy Metals ◽  
Significant Degree ◽  
Chloride Ions ◽  
Chemical Pollution ◽  
Soil Monitoring ◽  
Physico Chemical ◽  
State Study ◽  
Republic Of Bashkortostan ◽  
Zone Of Influence ◽  
Contamination Of Soils

This article deals with the contamination of soils by oil products, chloride ions and heavy metals in the territory of the asphalt plant. The analysis of soil samples for the content of heavy metals was carried out by gravimetric and fluorometric methods. The soil is able to absorb technogenic impurities and also accumulate contaminants, including heavy metals, which, if excess, exhibit toxic properties, slowly breaking down under natural conditions and entering the cycle of trophic chains. The analysis of the selected soil sample was carried out in the laboratory of environmental monitoring of physico-chemical pollution of the environment in Birsk, Republic of Bashkortostan. Research shows there is an excess in majority of the investigated parameters are observed in the territory of the asphalt plant. The totality of the results of the soil state study in the area adjacent to the asphalt plant revealed a considerable level of soil contamination corresponding to significant degree of technogenic depletion. In its turn it speaks of the operation of technological equipment and a long working life.

scholarly journals CONTENT OF HEAVY METALS IN SOILS OF OIL-POLLUTED AREAS OF PRE-CARPATHIAN

2021 ◽  
pp. 83-88
Author(s):  
V. Lopushnyak ◽  
H. Hrytsulyak ◽  
O. Tonkha ◽  
O. Menshov ◽  
O. Pikovsʹka ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Sewage Sludge ◽  
Heavy Metal Contamination ◽  
Petroleum Products ◽  
Podzolic Soils ◽  
Mobile Forms ◽  
Test Soil ◽  
Contamination Of Soils ◽  
Lead Nickel ◽  
Heavy Metals In Soils

The article highlights the results of research on the content of heavy metals in sod-podzolic soils of oil-contaminated areas of Ivano-Frankivsk region. Contamination of soils with petroleum products causes severe ecological consequences for ecosystems. The aim of the research was to study the peculiarities of the accumulation of heavy metals in the soil, underground part and vegetative mass of sylphia perforated in the conditions of cultivation in oil-contaminated areas. The content of mobile forms of heavy metals in soils did not exceed the norms in all variants of the experiment. During the cultivation of Sylphia perfoliatum, it grew in a number: cadmium → nickel → cobalt → lead. The concentration of heavy metals in the soil was determined, which reflects the change in the content of the element in the test soil relative to the content of metals in the background soil. The coefficients of concentration of mobile forms of heavy metals in oil-contaminated soil for the cultivation of perforated sylphia for the application of fertilizers based on sewage sludge and compost based on them increased in a number: cobalt → lead → nickel → cadmium. Peculiarities of heavy metals accumulation in the vegetative mass of perforated sylphia have been established. Indices of intra-tissue heavy metal contamination of the root system of sylphia perforated with the introduction of sewage sludge increase in the following series: cadmium → nickel → lead → cobalt. The maximum indices of contamination of sylphia roots permeated with cadmium, nickel and cobalt are observed for the introduction into the soil of ERUs at a rate of 40 t / ha and N10P14K58, lead – for the application of compost at a rate of 30 t/ha and N30K55. The lowest indices of intratissue contamination with heavy metals of the roots of sylphia perfoliatum were noted for the application of fertilizer N60P60K60.

scholarly journals The effect of organic fertilizers on the physico-chemical and agrochemical properties of sod-podzolic soils

2021 ◽  
Vol 5 (47) ◽  
pp. 21-21
Author(s):  
Vladimir Sedykh ◽  
Vitaliy Savich ◽  
Oleg Efimov ◽  
Vasily Rashkovich
Keyword(s):  
Heavy Metals ◽  
Podzolic Soil ◽  
Humus Content ◽  
Organic Fertilizers ◽  
Chicken Manure ◽  
Podzolic Soils ◽  
Physico Chemical ◽  
Mobile Forms ◽  
Agrochemical Properties ◽  
Chemical Soil

Studies of the effect of litter chicken manure applied in doses of 500-1000 t/ha showed a significant increase in the humus content in soils up to 2.8-5.2%, led to an increase in the content of thermophilic microflora in soils up to 12 · 105 CFU/ g, to an increase in the content of mobile phosphates up to 1200 mg/kg. However, the content of mobile forms of heavy metals (Pb, Zn, Cu, Ni) also increased. The increase in humus content in soils positively correlated with the content of mobile phosphates (r up to 0.5). Keywords: SOD-PODZOLIC SOIL, FERTILIZERS, CHICKEN MANURE, AGROCHEMICAL AND PHYSICO-CHEMICAL SOIL PROPERTIES

scholarly journals Increasing soil fertility as an important factor in ensuring food security of the state

2021 ◽  
Vol 273 ◽  
pp. 05010
Author(s):  
Galina Pyrchenkova ◽  
Vladimir Sedikh ◽  
Elena Radchenko
Keyword(s):  
Heavy Metals ◽  
Humus Content ◽  
Water Soluble ◽  
Chicken Manure ◽  
Hydrothermal Conditions ◽  
Podzolic Soils ◽  
Manure Compost ◽  
Complexing Capacity ◽  
Mobile Forms ◽  
Poultry Droppings

The influence of chicken manure compost with sawdust in doses from 100 to 1000 t/ha on soil properties was studied on the sod-podzolic soils where the poultry farms of the Moscow region are located. An increase in pH, the humus content, the content of water-soluble forms of NPK in soils and an increase in the complexing capacity of soils were found. The authors define the correlation of the content of mobile forms of heavy metals in the sod-podzolic soils fertilized with poultry droppings with soil pH, the content of humus and mobile phosphates in them. The permissible doses of manure introduced into the soil as fertilizer are determined by the combination of properties, processes and soil regimes, relief, groundwater level, and hydrothermal conditions of the territory. The introduction of droppings into soils contaminated with heavy metals increased their mobility due to complex formation. A positive effect of the use of humates from chicken droppings on the bioproductivity of plants is defined. The article considers the necessity of controlling the quality of the water and air environment when regulating the composition and doses of application of chicken manure compost.

scholarly journals Geochemical characteristics for the soil deposits within the municipal waste disposal areas by the environment study results

2020 ◽  
Vol 35 (3) ◽  
pp. 5-21
Author(s):  
Oleksandr M. Trofymchuk ◽  
Iryna V. Kuraeva ◽  
Oleksandr T. Azimov ◽  
Sergii P. Karmazinenko ◽  
Kateryna S. Zlobina
Keyword(s):  
Soil Layer ◽  
Chemical Properties ◽  
System Capacity ◽  
Trophic Chain ◽  
Toxic Substances ◽  
Leachate Treatment ◽  
Disposal Facility ◽  
Mobile Forms ◽  
Study Results ◽  
Soil Deposits

As a result of the analytical research and result of the previous stages of study it was found the significant contamination of the soil layer by the heavy metals (HMs) within the Landfill area No 5 for the municipal solid waste (MSW) disposal and the surrounding areas. It was revealed also the negative its effect on the contents of these pollutants in the soil of adjacent buffer zone, which is under the influence of north-eastern, northern, and north-western parts of the Landfill. This is a result of 34 years of the operation of the MSW disposal facility, when there were operating troubles. That caused by the breach of operating procedures of the covering the garbage storages by the isolating layers of dirt, intermittent work of the leachate treatment system, capacity exceeded, etc. Therefore, the soils within the Landfill’s boundaries and also in the buffer its zone have been contaminated by the different toxic substances, in particular by the HMs. So, soil deposits of the Landfill have got the maximum exceed of background contents for cooper, lead, nickel, and tin by from several to ten times, at the same time, beyond its contour – by 2–3 times. The negative changes of physical-chemical properties of soils of the humus horizon is revealed by the comparison with the proper indications for the soil samples collected in the sites adjacent to the Landfill and directly on its territory. The buffer coefficient of soil of this horizon (Cb) is twice as lower for the technogenic polluted soils within the MSW disposal facility than for the background sites for their is equal to the value of Cb=55. The contents of mobile forms for the HMs in the soil formations of the Landfill No 5 in the comparison with the background values increase 2 times for cooper and zinc, as well 8 times for lead. It is the content of the mobile forms that affects the migration of the HMs in the trophic chain “soil – solution – biota”.

scholarly journals The Effect of Biohumus on Increasing of the Fertility Gray-Brown Soils in Mountainous Shirvan

2020 ◽  
Vol 6 (12) ◽  
pp. 100-104
Author(s):  
E. Abasova
Keyword(s):  
Mineral Nutrition ◽  
Humus Content ◽  
Soil Layer ◽  
Toxic Substances ◽  
Control Option ◽  
Mobile Forms ◽  
Agrochemical Properties ◽  
Humus State ◽  
Phosphorus And Potassium ◽  
Soil Buffering

The introduction of biohumus into degraded gray-brown soils contributed to the improvement of their agrophysical and agrochemical properties. The density of the arable horizon has decreased by 0.02–0.16 g/cm3, the content of water-resistant aggregates, providing an optimal water-air regime, has doubled. The introduction of biohumus can solve the problem of soil overconsolidation. The research results show that when biohumus is introduced into gray-brown soils in an amount of 3.0, 4.0 and 5.0 m/ha, certain changes occur in the humus content according to its introduction, that is, an increase in the humus content in the arable soil layer compared to with the control option was −0.33, 0.51 and 0.62%. Regular use of biohumus will allow to suspend the process of soil dehumification and improve the conditions of the humus state of the soil, as well as the mineral nutrition of plants, leads to an increase in total nitrogen, mobile forms of phosphorus and potassium, which participate and contribute to an increase in soil buffering and prevent the entry of toxic substances into plants.

scholarly journals Estimation of erodization of the irrigated soil cover in the Priazov zone

2021 ◽  
pp. 29-33
Author(s):  
Liliya Andreyevna Mityayeva ◽  
Yuliya Yuryevna Ariskina
Keyword(s):  
Soil Cover ◽  
Humus Content ◽  
Soil Layer ◽  
Field Studies ◽  
Comparative Assessment ◽  
Analysis And Evaluation ◽  
Erosion Processes ◽  
Rostov Region ◽  
Mobile Phosphorus ◽  
Sampling Points

The article considers the assessment of the degree of eroded irrigated soil cover based on field studies conducted in 2018 and 2020 in the Kuibyshev district of the Rostov region. Analysis and evaluation of diagnostic indicators of erosion processes was carried out in 12 point samples from the 0-20 cm soil layer. The main diagnostic indicators of the studied area are: humus content; mobile phosphorus and exchange potassium. A comparative assessment of the degree of site erosion is presented. It is noted that in 2018 there are medium-eroded areas (the area where the wells are located 2, 3, 8, 9, 11, 12), and in 2020, uneroded and slightly eroded soils are already observed on the site, which indicates that agro-reclamation measures are being taken to prevent negative processes. In 2018, the highest humus content was observed in well 6 (130.78 t/ha), and the lowest-in well 11 (85.54 t/ha). The lowest humus content for 2020 was found in well 8 (78.78 t/ha), the highest-in well 12 (91.78 t/ha), which corresponds to 2 and 1 degrees of erosion. In 2018 the availability of mobile phosphorus in the surveyed area is high, with the exception of sampling points 8 (22.29 mg / kg), 9 (15.71 mg/kg) and 12 (19.15 mg/kg), which corresponds to the degree of soil cover erosion from 0 to 3. The lowest values of exchange potassium are observed in 2018, which is typical for leaching of the main nutrients during irrigation. Further monitoring studies of the soil cover should be carried out systematically to assess the degree of erosion hazard during irrigation, which will serve as a basis for developing models and forecasts of changes in soil fertility.

scholarly journals Factors affecting heavy metals accumulation in potato tubers / Czynniki wpływające na akumulację metali ciężkich w bulwach ziemniaka

2015 ◽  
Vol 26 (3) ◽  
pp. 54-59 ◽  
Author(s):  
Janette Musilova ◽  
Judita Bystricka ◽  
Alena Vollmannova ◽  
Beata Volnova ◽  
Alzbeta Hegedusova
Keyword(s):  
Heavy Metals ◽  
Humus Content ◽  
Critical Value ◽  
P Value ◽  
Potato Tubers ◽  
Factors Affecting ◽  
Plant Foods ◽  
Heavy Metals Accumulation ◽  
Ph Values ◽  
Mobile Forms

Abstract Soil is one of the most important sources of plant foods’ contamination by heavy metals which enter into human and animal organisms via the food chain. From the observed metals (Zn, Cu, Ni, Pb, Cd) the enhanced total contents of Cd and contents of mobile forms of Pb were determined. Especially mobile forms of Pb in soil (0.100-0.295 mg∙kg-1), higher than the critical value, represent a risk resulting in the high content of Pb in potatoes (0.244-0.855 mg∙kg-1 FM). The high significant correlations between soil and potatoes in values of Pb content and were between soil pH values and Pb content in potatoes were confirmed in two from three potato cultivars (P-value < 0.01). No correlation was confirmed between humus content in soil and Pb content in potatoes.

Bioremediation of Heavy Metals and Other Toxic Substances by Microorganisms

2021 ◽  
pp. 285-329
Author(s):  
Dhaneshwar Padhan ◽  
Pragyan Paramita Rout ◽  
Ritesh Kundu ◽  
Samrat Adhikary ◽  
Purbasha Priyadarshini Padhi
Keyword(s):  
Heavy Metals ◽  
Toxic Substances
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