Influence of the Tengutinsky Oil-extracting Complex on Soils of the Reserve «Black Earth»

Buluktaev, Aleksey; Sangadzhieva, L. Kh.; Davaeva, Ts. D.

doi:10.18500/1816-9775-2015-15-4-109-114

CBE

2015

DOI: 10.18500/1816-9775-2015-15-4-109-114

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Influence of the Tengutinsky Oil-extracting Complex on Soils of the Reserve «Black Earth»

Aleksey Buluktaev¹,

L. Kh. Sangadzhieva²,

Ts. D. Davaeva³

Abstract: Изв. Сарат. ун-та. Нов. сер. Сер. Химия. Биология. Экология. 2015. Т. 15, вып. 4 Научный отдел 110 of heavy metals in brown semidesertic soils are determined.

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Changes in Salt Composition of Oil Contaminated Black Soils

Булуктаев

2018

Ûg Ross.: èkol. razvit.

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Aim. The Republic of Kalmykia is rich in fossils minerals, the main of which are oil, gas, condensate, etc. The republic includes three main morphostructures: the Caspian lowland, the Ergeninskaya Upland and the Kuma-Manych depression. The Caspian lowland, in turn, is divided into the Sarpinskaya lowland and the Black Lands. Practically all hydrocarbon production fields are concentrated in the territory of the Black Lands. In this regard, the most acute for this area are issues of environmental management and problems associated with the seepage of petroleum products into the environment. In the present work, was investigated the problem of soil contamination within the Nadezhdinsky, North-Kamyshansky, Tengutinsky, Bairskoye and Sostinsky oil deposits. Methods. The soil composition of the deposits is due to the complexity and is characterized by a light granulometric composition and, in most cases, salinity. The soils were analyzed for the content of Са2+, Mg2+and Na+cations, НСО3-, CI-and SO42anions as well as their pH values. Results. Contamination of soils with oil and petroleum products leads to deterioration of its physical and chemical properties, salinity increase, soil alkalinization; soils saturated with oil products, lose the ability to retain moisture, they are characterized by lower values of hygroscopic moisture, water permeability and moisture capacity. Conclusions. The study revealed that the oil pollution of the Black Lands leads to a change in the quality of salinity; the content of sodium and chlorine ions increases in the oil-contaminated soils.

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Changes in Salt Composition of Oil Contaminated Black Soils

Булуктаев

2018

Ûg Ross.: èkol. razvit.

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Oil sludge barns as objects of accumulated environmental damage and sources of public health risks

May

Maksimova

Termulaeva

et al. 2022

Hygiene and Sanitation

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Introduction. The research is vital given the task to quantify public health risks caused by objects of accumulated environmental damage. A health risk is a criterion to establish what objects of accumulated environmental damage should be considered priority ones for elimination. Our research goal was to assess and characterize public health risks caused by oil sludge barns located in Argun municipal district in Chechnya, Russian Federation to determine whether this object of accumulated environmental damage should be considered a priority for elimination. The object is typical for this type of waste storage. Materials and methods. Our research concentrated on examining oil sludge barns with the total volume of wastes exceeding one hundred thirty thousand cubic meters. They were located within a settlement less than 50 meters away from the closest residential area. Approximately 40.2 thousand people permanently reside in a zone exposed to the analyzed object. We collected and analyzed background data on the object and performed wide-scale instrumental measurements of soils, drinking water, ambient air and food in the zone influenced by the object. Overall, we accomplished more than 400 tests to estimate safety and quality of soils, drinking water from non-centralized water supply sources and ambient air. Results. We established soils, drinking water from non-centralized water supply sources, and ambient air to be polluted with chemicals typical for oil sludge barns in the zone located next to the object, the closest residential area included. Major risk factors were oil products and their specific components, heavy metals (copper, arsenic, cadmium, and lead), and benz(a)pyrene. The total health risk for people living in the closest settlements was rated as “high”. Limitations. All the obtained estimates, health risk rates included, describe oil sludge barns located in a zone with specific geological and climatic-geographic conditions and in close proximity to residential areas. Conclusion. Assigning the analyzed object into a “high risk category” allows considering it a priority for elimination and it is mandatory to include it in the list of objects that should be eliminated immediately. After the object is eliminated, this territory is aimed for housing development. With bearing this in mind, it seems advisable to perform comparative control examinations of the environment after all the works on eliminating the accumulated environmental damage have been completed.

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Influence of the Tengutinsky Oil-extracting Complex on Soils of the Reserve «Black Earth»

Abstract: Изв. Сарат. ун-та. Нов. сер. Сер. Химия. Биология. Экология. 2015. Т. 15, вып. 4 Научный отдел 110 of heavy metals in brown semidesertic soils are determined.

Cited by 2 publications

References 0 publications

Changes in Salt Composition of Oil Contaminated Black Soils

Changes in Salt Composition of Oil Contaminated Black Soils

Oil sludge barns as objects of accumulated environmental damage and sources of public health risks

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