Elemental composition of dust aerosols near cement plants based on the study of samples of the solid phase of the snow cover

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Daria A. Volodina ◽  
Anna V. Talovskaya ◽  
Anna Yu. Devyatova ◽  
Alexey V. Edelev ◽  
Egor G. Yazikov

Abstract This study is focused on the quantification of dust load on snow cover and chemical elements content in the solid phase of snow cover in the impacted areas of cement plants (the south of Western Siberia). Applying the instrumental neutron activation analysis, we identified chemical composition in the samples of the solid phase of snow cover. The results demonstrated that the dust load corresponded to the permissible pollution levels in the living zones. Dust pollution level varied from moderately hazardous to highly hazardous in the north-western impacted zone of the cement plants and raw material open pits. It was found that the predominant chemical element is Ca, as well as a group of rare-earth (Yb, Tb, Sm, La, Ce, etc.) elements in the solid phase of snow cover from the impacted zone of the cement plants.

Heritage ◽  
2021 ◽  
Vol 4 (4) ◽  
pp. 2853-2875
Author(s):  
Marianna A. Kulkova ◽  
Maya T. Kashuba ◽  
Aleksandr M. Kulkov ◽  
Maria N. Vetrova

Transition to the Early Iron Age was marked by the appearance of innovations such as iron technology and changes in the lifestyle of local societies on the territory of the North-Western Pontic Sea region. One of the most interesting sites of this period is the Glinjeni II-La Șanț fortified settlement, located in the Middle Dniester basin (Republic of Moldova). Materials of different cultural traditions belonged to the Cozia-Saharna culture (10th–9th cc. BC) and the Basarabi-Șoldănești culture (8th–beginning of 7th cc. BC) were found on this site. The article presents the results of a multidisciplinary approach to the study of ceramic sherds from these archaeological complexes and cultural layers as well as raw clay sources from this area. The archaeometry analysis, such as the XRF-WD, the thin section analysis, SEM-EDX of ceramics, m-CT of pottery were carried out. The study of ancient pottery through a set of mineralogical and geochemical analytic methods allowed us to obtain new results about ceramic technology in different chronological periods, ceramic paste recipes and firing conditions. Correlation of archaeological and archaeometry data of ceramics from the Glinjeni II-La Șanț site gives us the possibility to differ earlier and later chronological markers in the paste recipes of pottery of 10th–beginning of 7th cc. BC in the region of the Middle Dniester basin.


Światowit ◽  
2019 ◽  
Vol 56 (1) ◽  
pp. 99-109
Author(s):  
María Irene Ruiz de Haro

In space, the Castreña culture was located in the north-western part of the Iberian Peninsula, whereas in time it stretched from the Late Bronze Age to the beginning of the Roman period. This study focuses specifically on the invention and use of the spinning bowl in the Castreña culture. Theoretical and conceptual tools will enable tackling this item with a rigid research methodology and help answer the question of why the invention of the spinning bowl and the innovations in processing of flax yarn production occurred, and how they were transmitted to other areas in the forms of innovation or technical loan. To explain its presence within the limits of this geography and chronology, the use of Linum usitatissimum L. is discussed. This specific raw material is closely related to the entire innovation process on the one hand, and on the other opens an avenue for research into its function within the technical chain of the creation of linen thread or yarn.


2021 ◽  
Author(s):  
Dmitriy Belyanin ◽  
Yuliya Vosel ◽  
Kseniya Mezina ◽  
Mikhail Melgunov ◽  
Vladimir Dobretsov

<p>Revealing background concentrations of chemical elements and radionuclides in the surface components of the environment exposed to constant atmospheric processes is the first step towards detecting areas with their abnormally high concentrations of natural and man-made character. In this work, we present the results of studying the content of trace elements and microparticles in the snow cover accumulated during the 2018-2019 winter season in the Novy Urengoy region. Samples were taken along the roads using a rare sampling grid over the entire depth of the snow cover. In laboratory conditions, after the snow melted, the solution was filtered. The results of mass spectrometric measurements of the trace element concentrations in the filtrates show that their composition is homogeneous and does not vary slightly at the sampling points. Evaluation of the prevailing directions of backward air-mass trajectories was computed using the HYSPLIT model.</p><p>This work was supported by the Russian Science Foundation grant (project No 18-77-10039). Analytical studies were carried out at the Center for multi-elemental and isotope research SB RAS.</p>


2020 ◽  
Vol 163 ◽  
pp. 05011
Author(s):  
Marina Opekunova ◽  
Anatoly Opekunov ◽  
Stepan Kukushkin ◽  
Sergey Lisenkov

This study describes the changes in the chemical composition of soil waters under the influence of natural and anthropogenic factors in the area of development of oil and gas condensate fields in the north of Western Siberia. The concentration of chemical elements (Na, K, Ca, Cu, Zn, Fe, Pb, Cd, Ni, Co, Cr, Ba, Sr, Cd, and Mn) in soils, ground and soil waters was determined. Pollution of soil water and soil is local in nature and it is characteristic of areas located in the immediate vicinity of industrial facilities. A set of indicators is proposed for assessing the transformation of natural complexes under the influence of oil and gas production. The increased pH values, concentrations of petroleum hydrocarbons, nitrates, chlorides, sodium, potassium, calcium, barium, strontium, iron and manganese, as well as zinc, vanadium, cobalt and nickel are observed. In the impact zones in soil waters and soils. Mechanical disturbances of the soil and vegetation cover lead to an increase in defrost, secondary waterlogging and are accompanied by an increase in the migration of chemical elements in the catenary structure of landscapes.


2020 ◽  
Vol 19 (7) ◽  
pp. 164-175
Author(s):  
Lyubov L. Kosinskaya

Purpose. The earliest sites with different variants of flat-bottomed ceramics in the forest zone of Trans-Urals and Western Siberia date back to the 7th – the beginning of the 6th millennium BC. To understand the process of neolithization, it is important to ascertain the succession of their lithic industries with previous Mesolithic. Results. A review of the Early Neolithic stone inventory reveals two distinct areas in the forest zone. The northern one (Lower Ob, Surgut Ob and Konda basin) is characterized by three technologies: direct percussion flaking and block-on-block knapping of quartz, with inexpressive rarely retouched tools such as scrapers and scaled pieces; percussion-abrasive technique for polished knives, arrowheads, adzes and axes; punch technique for flint inset bladelets, without any arrowheads. Although investigated Mesolithic sites are not numerous in this area, it is clear that the first two technologies arose in the North since that time, when the microblade technique was the dominant one. Lithic assemblages of Early Neolithic settlements in the southern forest zone (Middle Trans-Urals) are generally analogous to the local Mesolithic. The latter included the microblade industry similar to the northern one but supplemented by polished axes. In the Early Neolithic it was completed by arrowheads (tanged points). The inventory of Early Neolithic sites in the Ob-Irtysh forest-steppe region with similar flat-bottomed ceramics almost exclusively contains the flint blade industry resembling the Mesolithic one of the area. Conclusion. Therefore, it is possible to trace traditions and innovations in stone-processing based on three groups of features. These are the types of available stone raw material and their own appropriate technologies, the preservation degree of microblade industry, the nomenclature and typology of implements. According to these traits, in each of the three districts, the Early Neolithic stone industry inherited traditions of the local Mesolithic, but developed in its own way.


2020 ◽  
Vol 37 (4) ◽  
pp. 182-198
Author(s):  
S. V. Ivanova

Specific feature of the cultural-historical genesis of the North-Western Pontic Region at the turn of the 4th to the 3rd mill. BC is manifested by relations of its population with a foreign cultural environment. This concerns, first and foremost, the Budzhak culture that is a component of the Pit-Grave (Yamna) cultural-historical region. The Budzhak culture represents connections with the Carpathian and Danube, the Corded Ware and the Globular Amphora cultures. The contacts were reflected in two aspects: imports, imitations and parallels in the Budzhak pottery and the occurrence of the Yamna burials found in other territories. Some forms of pottery and elements of its dйcor are rather surprisingly similar to central European groups of the Corded Ware culture. The analysis of the mainland culture of the Budzhak population enables us to assume the existence of contacts with the Corded Ware culture circle as early as in the first half of the 3rd mill. BC. The current state of research on the movement of Yamna cultural aspect towards west is also discussed in the paper. The recent genetic analysis results the link of Yamna and Corded Ware populations. They were treated as the evidence of direct massive migration of Steppe people into Central Europe. Archaeological data supporting this concept are few if any. The westernmost enclaves of Yamna culture rather indicate limited intrusion of specialized groups aimed at control of exchange routs and raw material extraction places. It is suggested that formation of Balkan-Carpathian variant of Yamna cultural-historical community is connected to the expansion of the tribes of the Budzhak culture of the North-West Pontic region. The western group of Yamna-Budzhac culture is distinctively different from «core» Yamna by typology of pottery while both aspects share the similar burial rites. The information obtained as a result of many years of excavations of barrows of the North-Western Pontic Region allow defining the Budzhak culture not only as a unique structural entity within the Yamna cultural-historical area but also as a mobile community opened to «cultural dialogue» and capable of long-distance migrations. Indications of that include imports, imitations, derivatives in the material complex, as well as the population’s westward movement to the Central European and Balkan-Carpathian Region.


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