scholarly journals Insoluble Particles in the Snowpack of the Ob River Basin (Western Siberia) a 2800 km Submeridional Profile

Atmosphere ◽  
2020 ◽  
Vol 11 (11) ◽  
pp. 1184
Author(s):  
Vladimir P. Shevchenko ◽  
Sergey N. Vorobyev ◽  
Ivan V. Krickov ◽  
Andrey G. Boev ◽  
Artyom G. Lim ◽  
...  
Keyword(s):  
Western Siberia ◽  
Hydrocarbon Production ◽  
River Catchment ◽  
Ob River ◽  
Insoluble Particles ◽  
Melted Snow ◽  
Natural Archive ◽  
Production Areas ◽  
The City ◽  
Snow Samples

Snowpack exhibits properties that make it a unique natural archive of airborne pollution. The data on insoluble particles in the Ob River catchment (Western Siberia) snowpack are limited. Insoluble particles in the snowpack of Western Siberia were studied at 36 sites on a 2800 km submeridional profile from the city of Barnaul to Salekhard in February 2020. Snow samples were collected over the full depth of the snow core, from the surface of the snow cover to the boundary with soil, except for the lower 1–2 cm. After the filtration of melted snow through a 0.45-µm membrane, the particle composition was studied using a scanning electron microscope with an energy microprobe. In the background areas, the concentration of insoluble particles in the snow was below 2 mg/L. Significantly higher particle concentrations were encountered near cities and hydrocarbon production areas. Particulate matter in snow mainly consists of biogenic and lithogenic particles mixed with anthropogenic particles (ash and black carbon aggregates). The proportion of anthropogenic particles increases near cities and areas of active hydrocarbon production.

Aquatic vegetation (Lemnetea, Potametea) of the Ob river floodplain (within the limits of Aleksandrovskiy district of Tomsk region)

2008 ◽  
pp. 68-75 ◽  
Author(s):  
G. S. Taran
Keyword(s):  
Western Siberia ◽  
Aquatic Vegetation ◽  
Ceratophyllum Demersum ◽  
River Floodplain ◽  
Ob River ◽  
Tomsk Region ◽  
Potamogeton Natans

In the Ob river floodplain between the mouths of its tributaries Vakh and Tym (within the limits of Aleksandrovskiy district of Tomsk region), phytocoenoses belonging to 9 associations and 2 communities of Braun-Blanquet classification vegetation classes are listed. Class Lemnetea is represented by associations Ricciocarpetum natantis (Segal 1963) Tx. 1974, Lemnetum trisulcae Soó 1927, Stratiotetum aloidis Miljan 1933; class Potametea is done by asso­ciations Potametum perfoliati Koch 1926, Myriophylletum sibirici Taran 1998, Myriophylletum verticillati Soó 1927, Potametum graminei Koch 1926, Potametum pectinati Carstensen 1955, Nymphoidetum peltatae (All. 1922) Bellot 1951, as well as Sagittaria natans and Potamogeton natans—Ceratophyllum demersum communities. The syntaxa distribution in Western Siberia and adjoining territories is characterized.

scholarly journals Dynamics of mercury content changes in snow in the heating season on the example of the city of Siedlce

2019 ◽  
Vol 30 (1) ◽  
pp. 19-24
Author(s):  
Joanna Jabłońska ◽  
Mariusz Kluska
Keyword(s):  
Mercury Content ◽  
Housing Development ◽  
Pollution Monitoring ◽  
Hard Coal ◽  
The European Union ◽  
Housing Developments ◽  
Clean Air ◽  
The Individual ◽  
The City ◽  
Snow Samples

Abstract The paper presents the results of research on the content of mercury in snow samples with the use of isotachophoresis. Snow samples were collected in December 2017 as well as in January and February 2018. Samples were collected in Siedlce in places where the individual heating of houses, mainly by hard coal, was visible. The highest mean content of mercury amounting to 0.36 μg/dm3 of water was determined in the snow samples collected in January 2018 in the Żwirowa housing development, and the lowest – 0.25 μg/dm3 in two housing developments: Nowe Siedlce and Topolowa, also collected in January. The snow samples collected in the Żwirowa housing development were characterised by the highest contamination with mercury compared to all the other samples collected for the analysis. The research is a continuation of pollution monitoring in the town of Siedlce in connection with the European Union recommendations on environmental protection and the ‘clean air’ programme implemented in Poland.

scholarly journals The «red snow» of the Polar Urals (Western Siberia)

2019 ◽  
Vol 16 ◽  
pp. 00022
Author(s):  
Yuriy Naumenko
Keyword(s):  
Sea Level ◽  
Plant Communities ◽  
Western Siberia ◽  
West Siberia ◽  
Polar Urals ◽  
Snow Samples ◽  
The Polar Urals

Pink-red colored snow fields were sampled in the area of Ochety Lake (the Polar Urals, West Siberia) at the altitude of 272 m above the sea level in August 2019. Zygospores of Chlamydomonas nivalis prevailed in plant communities. Altogether, 9 species of algae have been discovered in snow samples: 7 species of Cyanoprokaryota, 1 species of Bacillariophyta and 1 species of Chlorophyta.

scholarly journals Formation of the organizational-managerial model of renovation of urban territories

2018 ◽  
Vol 196 ◽  
pp. 04029 ◽  
Author(s):  
Dmitriy Topchiy ◽  
Andrey Tokarskiy
Keyword(s):  
Urban Areas ◽  
Urban Infrastructure ◽  
Comprehensive Analysis ◽  
Social Needs ◽  
Added Value ◽  
Special Role ◽  
The Social ◽  
Urban Territories ◽  
Production Areas ◽  
The City

The pace of modern urban development dictates special requirements for the structure of zoning and the designation of the territories of megacities. Formed requirements for the objects of residential and recreational areas, urban infrastructure and communications facilities. A special role in the issue of improving the comfort of the urban environment, is the process of renovation of production areas. One of the main principles of urban planning is the location of production in the outskirts of cities and settlements. However, with the development of urban areas, once located at the disposal of production, are surrounded by residential and administrative-office blocks. This “neighborhood” not only causes discomfort to residents, but also creates an excessive environmental burden on the environment. In addition, the territory of the city, and especially large megacities, have a much higher cadastral value of land, and, therefore, create an additional tax burden on production, as added value to the output. All these elements make the products uncompetitive, especially in comparison with similar products produced outside the metropolitan area. Thus, the process of output of production beyond the city limits is actually cyclical and uninterrupted. Territories that remain after the withdrawal of production facilities are subject to comprehensive analysis, taking into account the social needs of the city, and further renovation.

scholarly journals Archaeology of Tara in the context of Siberia’s accession to the Russian state (based on 2007–2019 studies)

2020 ◽  
Vol 15 ◽  
pp. 89-93
Author(s):  
S. F. Tataurov ◽  
Keyword(s):  
Western Siberia ◽  
Cultural Aspects ◽  
Russian State ◽  
History Of ◽  
The Military ◽  
The City ◽  
Archaeological Excavations

The article considers the materials of the archaeological excavations of the city of Tara as a source on the history of the accession of Western Siberia to the Russian state in the end of XVI–XVIII centuries. The analysis of finds testifying to the role of the city in the military, commercial, economic and cultural aspects of this process is given.

scholarly journals Historical Water Supply System of the City of Brno—Social-Environmental Consequences

Water ◽  
2021 ◽  
Vol 13 (24) ◽  
pp. 3550
Author(s):  
David Honek ◽  
Milena Forejtníková ◽  
Miloš Rozkošný ◽  
Aleš Vyskočil
Keyword(s):  
Water Quality ◽  
Wastewater Treatment ◽  
Water Supply ◽  
Industrial Development ◽  
River Flow ◽  
Water Quality Monitoring ◽  
Supply System ◽  
Water Supply System ◽  
River Catchment ◽  
The City

This paper provides a detailed look into the historical development of the water supply system of a big industrial city and its impact on the river environment and needs of the wastewater treatment system. The city of Brno, Czech Republic, was chosen for this study because it has a long history in the field of water supply, and the city has changed rapidly over the last 200 years. The city’s development necessitated an adaptation of drinking water sources, most significantly the use of the Březová nad Svitavou facility, which resulted in a change of condition of the Svitava River. The notable decrease in river flow, aided by industrial development of settlements within the Svitava River catchment between 1850 and 1950, strongly contributed to the spread of river pollution. However, the construction of wastewater treatment plants during recent decades led to a restoration of river quality and, consequently, of the entire environment of the Svitava River catchment. This paper also presents a view on activities connected with the long term surface water quality monitoring and improvement with regard to water quality conditions in spring areas and the river network influenced by the water supply system.

scholarly journals STUDIES OF MACROZOOBENTHOS IN THE UPPER OB RIVER CATCHMENT

2020 ◽  
pp. 55
Author(s):  
Ольга Николаевна Вдовина ◽  
Любовь Васильевна Яныгина ◽  
Дмитрий Михайлович Безматерных ◽  
Olga Vdovina ◽  
Lyubov Yanygina ◽  
...  
Keyword(s):  
River Catchment ◽  
Ob River

scholarly journals Distribution of Yellow Wagtail Forms Motacilla flava – Complex in the North of Western Siberia, Russia

2017 ◽  
Vol 10 (1) ◽  
pp. 1-9
Author(s):  
Mikhail G. Golovatin ◽  
Vasiliy A. Sokolov
Keyword(s):  
Western Siberia ◽  
Northern Taiga ◽  
Yamal Peninsula ◽  
Yellow Wagtail ◽  
Forest Tundra ◽  
Ob River ◽  
North East ◽  
The North ◽  
Taiga Forest ◽  
Shrub Tundra

On the basis of the materials obtained from the studies carried out from 2000 to 2015, we present the data on distribution of the Yellow Wagtail forms in the north of Western Siberia, i.e. within the overlapping boundaries of the ranges of a complex set of several polytypical forms – Motacilla flava sensu lato. Four forms have been identified here: two forms from the group of Western Yellow Wagtails (M. f. thunbergi and M. f. beema & flava) and two forms from the group of Eastern Yellow Wagtails (M. t. plexa and M. t. tschutschensis). Western “black-headed” form M. f. thunbergi is spread in the area of the northern taiga, forest tundra and south shrub tundra within the Ob River basin, while eastern “black-headed” form M. t. plexa is found in the shrubby tundra and further to the east from the Ob River in forest tundra and northern taiga. Western “light headed” wagtails M. f. beema & flava spread as far as 65º05'N along the floodplain of the Ob River. Eastern “light-headed” wagtail M. t. tschutschensis penetrates the Taz peninsula and, through the anthropogenic sites, the north-east coast of the Yamal Peninsula, i.e. the Sabetta area as far as 71º14'N. The entire range of the Yellow Wagtail is characterized by the interchange of zones inhabited by “black-headed” (without the expressed eyebrows on males) and “light-headed” (with notable eyebrows on males or white-headed) forms from the north to the south.

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