scholarly journals Anthropogenic Transformation of Ecological Conditions and Pollutants Transport along the Amur River Length

Author(s):  

The tendency of the maintenance of several pollutants’ high concentrations along the Amur River was shown. The cases of extremely high levels of water pollution were considered. The state of some parts along the Amur River was estimated as critical and interjacent from the equilibrium to the crisis and critical state. The average perennial values of priority pollutants volume inflows 5–15 times exceeded the permissible MPC values. Herewith the increasing of pollutants concentration in the aquatic environment downstream occurred.

2019 ◽  
Author(s):  
A.A. Kovalenko

В условиях антропогенного воздействия на окружающую среду и несбалансированного природопользования может происходить снижение самоочищающей способности реки Амур и ухудшение качества воды. Водопользование в бассейне реки осуществляется со стороны трёх государств: России, Монголии и Китая. Основными источниками поступления загрязняющих веществ в Амур с российской стороны являются предприятия деревообрабатывающей промышленности, машиностроение, цветная металлургия, добыча полезных ископаемых, производство электроэнергии. Снижение качества воды происходит также за счет недостаточной степени очистки сточных вод. Трансграничное положение изучаемого водного объекта, разница демографических потенциалов России и Китая и активное техногенное воздействие со стороны сопредельных территорий обусловливает актуальность настоящего исследования, целью которого является оценка многолетней изменчивости химического состава и качества воды на протяжении реки Амур. Исследование проведено на основе многолетних (20002017 гг.) гидрохимических данных Государственной системы наблюдений за состоянием и загрязнением окружающей среды Росгидромета в пунктах наблюдений на р. Амур: с. Черняево, гг. Благовещенск, Хабаровск, КомсомольскнаАмуре и НиколаевскнаАмуре. Рассмотрен химический состав воды на различных участках реки и проведена оценка качества воды по гидрохимическим показателям. Построены графики временной изменчивости значений удельного комбинаторного индекса загрязненности воды (УКИЗВ). Анализ многолетних данных показал, что на всех исследуемых участках реки концентрации хлоридов, сульфатов и нитратов не превышают предельно допустимые концентрации. Выявлены характерные загрязняющие вещества, содержание которых превышает нормативы ПДК более, чем в половине случаев. Это органические вещества, азот аммонийный, соединения железа, меди, цинка, никеля, марганца, фенолы и нефтепродукты. Наблюдается увеличение содержания некоторых загрязняющих веществ вниз по течению реки. В целом качество воды реки Амур на различных участках характеризуется 3м ( загрязненная и очень загрязненная ) и 4м классами качества ( грязная ). В динамике выражена общая положительная тенденция незначительного снижения уровня загрязненности воды.The title of the article is longterm variability of chemical composition and quality of water along the Amur river. As the title implies the article describes the chemical composition of water in different parts of the river and the water quality by hydrochemical parameters. A mention should be made that under the conditions of anthropogenic press on the environment and unbalanced use of natural resources, the ecological potential of the water ecosystem of the Amur River is depleted and the quality of water decreases. The transboundary position of the studied water object, the difference in the demographic potentials of Russia and China determines the relevance of this paper. The purpose of the work is to assess the longterm variability of the chemical composition and water quality along the Amur River. It should be noted that this research is based on longterm (20002017) Hydrochemical information. The state system of observers for the state and environmental pollution of Roshydromet at observation points along the river: c. Chernyaevo, the city of Blagoveshchensk, Khabarovsk, KomsomolskonAmur and NikolaevskonAmur. As a result, the analysis of longterm data showed that the concentrations of chlorides, sulphates and nitrates do not exceed the maximum permissible concentrations on all the studied river sections. Identified characteristic pollutants, the content of which exceeds the MPC standards in more than half of the cases. There is an increase in the content of some pollutants downstream of the river. In general, the water quality of the Amur River at different sites is characterized by the 3rd (polluted and very polluted) and 4th quality classes (dirty).


2010 ◽  
Vol 37 (4) ◽  
pp. 471-480 ◽  
Author(s):  
A. M. Nikanorov ◽  
V. A. Bryzgalo ◽  
L. S. Kosmenko ◽  
O. S. Reshetnyak

2020 ◽  
Vol 19 (8) ◽  
pp. 9-34
Author(s):  
Andrey S. Zuev

This article discusses the main facts about one of the leaders of the nomadic Ewenkis of Transbaikalia  Gantimur, who in 1666/67 left Qing empire and got through the process of naturalization in Russia. The author criticizes the narrative that is widespread in the state and local historical works and genealogical writings. According to it, Gantimur belonged to the Manchu ruling elite and allegedly participated in 1655 in the attack on the Russian Komarsky ostrog (fortress), located on the right bank of the Amur. Based on the analysis of a broad range of archival and published sources (petitions of Gantimur and his descendants, reports of Russian explorers and administrators, diplomatic documents drawn up during the Russian-Manchu negotiations) and historical research, it is shown, how this narrative appeared and became prevalent. The author proves that this historical myth does not correspond to real facts and was fabricated by the grandchildren of Gantimur in order to improve their status in the Russian social hierarchy and increase wealth. This article concludes by arguing that Gantimur was not part of the Manchu elite and did not take part in the Manchu campaigns on the Amur river.


2021 ◽  
Vol 895 (1) ◽  
pp. 012003
Author(s):  
D V Andreeva

Abstract The results of the layer-by-layer research of a river ice cores by using spectral and microbiological methods were presented. The impact of the mercury on sulfate-reducing bacteria activity from different layers of ice that had been sampled in March 2016 in the lower Amur River in Khabarovsk city was found. It was found that mercury concentration range of 0.0005-0.001 mg/l stimulated the sulfate-reducing bacteria activity, which were into the ice throughout the study area of the Amur River. To a large extent, this effect was typical for the ice that was sampled in the right bank of the Amur River near Khabarovsk city, where mercury pollution of the aquatic environment had been detected repeatedly. The activity of biogeochemical processes into the ice determined by high concentrations of organic substances, by the pollution of the aquatic environment with mercury during the ice cover formation, and by the abundance of cultivated heterotrophic and sulfate-reducing bacteria. During the ice drift and ice melting, the secondary pollution with toxic substances of various genesis of the aquatic environment occurs, which can have a negative impact on a hydrobionts.


2019 ◽  
Vol 56 (3) ◽  
pp. 484-487 ◽  
Author(s):  
Valentina Constanta Tudor ◽  
Dorina Nicoleta Mocuta ◽  
Ruxandra Florina Teodorescu ◽  
Dragos Ion Smedescu

Soil pollution with plastics represents a great threat to plants, animals, but especially to humans, as a very small quantity of the plastic which is discarded daily is recycled or incinerated in waste facilities, much of it reaching landfills where their decomposition lasts up to 1000 years and during this time the toxic substances penetrate the soil and the water. If, initially, the pollution with plastics has been identified and recognized in the aquatic environment, recent studies show that plastics residues exist in huge quantities in the soil. The present study focuses on the analysis of factors that pollute soil, so the various studies that have been carried out claim that soil pollution with plastic is much higher and increases in an aggressive manner, being estimated to be 4 to 23 times higher than water pollution with plastics, and the accumulation of microplastics in the soil has a negative impact on soil biota. Thus, once the plastic material accumulates in the soil, it is assimilated to organic matter and the mineral substitutes of the soil and persists for several hundred years.


2016 ◽  
Vol 43 (5) ◽  
pp. 791-802 ◽  
Author(s):  
A. M. Nikanorov ◽  
L. I. Minina ◽  
V. A. Bruzgalo ◽  
L. S. Kosmenko ◽  
M. Yu. Kondakova ◽  
...  

2017 ◽  
Vol 189 (3) ◽  
pp. 193-207 ◽  
Author(s):  
NickolaiA. Bochkarev ◽  
ElenaI. Zuykova ◽  
SergeyA. Abramov ◽  
ElenaV. Podorozhnyuk ◽  
DmitryV. Politov

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