scholarly journals Geoecological Assessment of the State of Coastal Waters and Bottom Sediments of the Lake Baikal and Its Tributaries (West Coast)

2021 ◽  
Vol 37 ◽  
pp. 103-114
Author(s):  
M. S. Yanchuk ◽  
Keyword(s):  
Heavy Metals ◽  
Lake Baikal ◽  
Bottom Sediments ◽  
Coastal Waters ◽  
Cobalt Content ◽  
Petroleum Products ◽  
The State ◽  
Western Coast ◽  
Low Degree ◽  
Sediment Bottom

This article presents the results of assessing the quality of coastal waters of the western coast of Lake Baikal and the rivers flowing into it (Kuchulga, Khorga, Sarma, Kurma). To assess the state of coastal waters, the following parameters were determined: the hydrogen index, the content of nitrogen-containing substances, phosphates, petroleum products, and heavy metals. Concentrations of heavy metals were found in the bottom sediments. The research was conducted in the summer period of 2016–2017. The lake shore under consideration is experiencing a high anthropogenic load due to the residential and recreational facilities located there. As a result of the study, it was found that, for most of the considered parameters, the water of the lake and its tributaries meet the established sanitary and hygienic standards. The excess of the MPC of the fishery in terms of the content of copper and lead in the water of the lake and its tributaries was determined. On the basis of the obtained data, a map-scheme of the distribution of nitrogen-containing substances in the study area was constructed. The concentrations of metals in the bottom sediments are also set at the level allowed by sanitary standards. There was a slight excess of the background values for the cobalt content in the samples of bottom sediments taken from the coastal waters of the lake and the Sarma River. To assess the degree of contamination of surface waters with heavy metals, the pollution coefficient for the sediment bottom was calculated, according to which the water bodies under consideration have a low degree of HM contamination.

scholarly journals Migration of heavy metals in system of coastal soil – bottom sediments – plants of the Khodtsa river during summer mean water in 2019

2020 ◽  
Vol 2020 (2) ◽  
pp. 67-74
Author(s):  
Zhanna Sergeevna Makakhaniuk ◽  
Valentina Mikhailovna Zubkova ◽  
Lyubov Anatolievna Rozumnaya
Keyword(s):  
Heavy Metals ◽  
Bottom Sediments ◽  
Aquatic Vegetation ◽  
River Mouth ◽  
Petroleum Products ◽  
Small River ◽  
Laboratory Research ◽  
Intermediate Point ◽  
Higher Aquatic Vegetation ◽  
Environmental Monitoring System

The article describes the purpose of the work, which is determining the distribution and relationships between the composition of pollutants in coastal soil, bottom sediments and higher aquatic vegetation in the small river Khodtsa. There have been presented the data of the laboratory research based on the results of the field work onselecting samples, on concentration of toxicants (cadmium, lead, iron, nitrogen, ammonium and petroleum products) in deposit media, as well as in Carex aquatilis plants of the small river Hodza. This plant species is limiting throughout the river due to the low intensity of biological absorption. The studies were carried out during the summer low water season in 2019 on the river section from the source (Elektrostal city) to the river mouth in the area of Pavlovsky Posad. In all the studied objects there have been found increased concentrations of iron. In the coastal ground and bottom sediments the pollution with heavy metals is manifested to a much greater extent: at the source and intermediate point. Petroleum products and ammonia nitrogen are distributed unevenly in space. A correlation analysis of the experimental data obtained in the components of the environment of the studied territory (the Khodtsa river) was performed. In general, the highest measurement results are observed in the upper reaches of the small river Khodtsa in the industrial city of Elektrostal. The obtained data on the heavy metals migration in the system “сoastal ground – bottom sediments – higher aquatic vegetation” of the small river Khodtsa can be successfully used as indicators an environmental monitoring system and serve as the basis for organizing further research, as well as for developing a strategy for environmental management and environmental protection in the Moscow Region.

scholarly journals ASSESSMENT OF THE MODERN STATE OF THE BOTTOM SEDIMENTS IN PORT TEMRYUK

2021 ◽  
Vol 49 (1) ◽  
pp. 53-67
Author(s):  
R. R. Agletdinov ◽  
I. Yu. Matasova
Keyword(s):  
Heavy Metals ◽  
Bottom Sediments ◽  
Statistical Processing ◽  
Petroleum Products ◽  
Water Area ◽  
Modern State ◽  
Sea Of Azov ◽  
The Sea Of Azov

The article analyzes the dynamics of changes in the content of petroleum products and a number of heavy metals (Fe, Cu, Zn, Pb, Cd) in the bottom sediments of the port of Temryuk in 2016–2020. Fluctuations in the concentrations of petroleum products in the soil from 88 to 413 mg/kg, iron – 8.4–41.0 mg/kg, copper – 13.6–116.0 mg/kg, zinc – 58.2–415.0 mg/kg, lead – 14.0–55.3 mg/kg, cadmium from less than 0.1 to 0.2 mg/kg were revealed. The geochemical features of the bottom sediments of the port of Temryuk relative to the sediments of the Sea of Azov are determined. Statistical processing of the obtained data made it possible to determine the correlation between the concentration of the substances in question in the soils of the studied water area.

scholarly journals ACCUMULATION OF HEAVY METALS IN BOTTOM SEDIMENTS OF THE VOLGA RIVER

2020 ◽  
pp. 169-178
Author(s):  
Олег Алексеевич Тихомиров ◽  
Наталья Евгеньевна Сердитова
Keyword(s):  
Heavy Metals ◽  
Bottom Sediments ◽  
The State ◽  
Volga River ◽  
Upper Volga ◽  
Tver Region ◽  
Geochemical Assessment

В статье рассматриваются вопросы накопления тяжелых металлов в донных отложениях реки Волги в пределах Тверской области. Анализируются основные источники загрязняющих веществ. Дается характеристика концентраций тяжелых металлов в воде и донных отложениях. Приводится эколого-геохимическая оценка состояния донных грунтов Верхней Волги и Иваньковского водохранилища. The article deals with the accumulation of heavy metals in the bottom sediments of the Volga River within the Tver region. The main sources of pollutants are analyzed. The characteristics of the concentrations of heavy metals in water and bottom sediments are given. An ecological and geochemical assessment of the state of bottom soils of the Upper Volga and Ivankovskoye reservoir is given.

Ecotoxicological Studies on the Kilian Branch and Delta of the River Danube

1990 ◽  
Vol 22 (5) ◽  
pp. 35-38
Author(s):  
L. P. Braginsky ◽  
F Ya Komarovsky ◽  
P. N. Linnik ◽  
O. V. Maslova ◽  
E. P. Shcherban
Keyword(s):  
Heavy Metals ◽  
Organochlorine Pesticides ◽  
Bottom Sediments ◽  
Petroleum Products ◽  
Complex Compounds ◽  
Danube River ◽  
Predatory Fish ◽  
High Molecular Weight Complex ◽  
River Danube ◽  
Pesticides In Water

Amounts of priority toxicants (heavy metals, petroleum and petroleum products, surfactants, phenols, organochlorine pesticides) in water, bottom sediments, macroinvertebrates, fish, and birds of the Kilian branch and delta of the River Danube were studied from 1978 to 1985. The bottom sediments and larger organisms were shown to be highly polluted by pesticide residues and heavy metals. In the water, organochlorine pesticides were almost completely adsorbed on suspended particles, while metals were found both in solution and in the suspended phase, forming high-molecular-weight complex compounds. Accumulation coefficients for DDT in the higher links of trophic chains (i.e., predatory fish, fish-eating birds) were 105 to 106. Danube river water was found have both acute and chronic toxicity, which was confirmed by biotesting on planktonic crustaceans. Toxicity varied in time and was of a pulsed character.

Content of the Heavy Metals in Water and Bottom Sediments of the Ingulets River

2008 ◽  
Vol 44 (5) ◽  
pp. 105-110 ◽  
Author(s):  
I. M. Malakhov ◽  
A. O. Bobko ◽  
T. M. Aliokhina
Keyword(s):  
Heavy Metals ◽  
Bottom Sediments

INFLUENCE OF THE ECOLOGICAL STATE OF THE SEREPOK RIVER (VIETNAM) ON ACCUMULATION OF HEAVY METALS IN ORGANS OF FISH

2017 ◽  
pp. 98-105
Author(s):  
Ngo The Cuong ◽  
Tran Hoan Quoc ◽  
Svetlana Vasilievna Zolotokopova
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
River Water ◽  
Bottom Sediments ◽  
Heavy Metal Concentration ◽  
Industrial Areas ◽  
Industrial Regions ◽  
Cadmium Lead ◽  
Sarotherodon Galilaeus ◽  
Water Bottom

The article focuses on the study of change of containing heavy metals (zinc, copper, iron, cadmium, lead, arsenic) in the abiotic and biotic components of the Serepok river (Vietman) influenced by wastewater discharge from industrial areas. Heavy metal content was determined in the river water and bottom sediments in the four zones: above and within the boundaries of industrial regions Xoa Phu and Tam Thang and in two water reservoirs situated below the boundaries of those industrial areas. Tilapia Galilean ( Sarotherodon galilaeus ), Hemibagrus ( Hemibagrus ), and sazan ( Cyprinus carpio ) caught in these areas were the hydrobionts under study in which liver, gills, skeleton and muscles accumulation of heavy metals was detected. In the organs of fish caught in the river within industrial region, heavy metals concentration was 3-7 times higher. The greatest concentration of heavy metals was found in the liver and gills of fish caught in the boundaries of industrial regions, the least concentration was in the muscles. In most cases, significant correlation between heavy metal concentration in organs of fishes and in river water, bottom sediments has been revealed.

Distribution and Contamination Status of Heavy Metals in the Surface Sediments along Western Coast of Bali Strait, Banyuwangi

2018 ◽  
Vol 1 (2) ◽  
Author(s):  
Defri Yona ◽  
Syarifah Hikmah Julinda Sari ◽  
Anedathama Kretarta ◽  
Citra Ravena Putri Effendy ◽  
Misba Nur Aini ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Metal Pollution ◽  
Contamination Factor ◽  
Pollution Index ◽  
Western Coast ◽  
Sampling Locations ◽  
Accumulation Index ◽  
Geo Accumulation Index ◽  
Geo Accumulation

This study attempted to analyze the distribution and contamination status of heavy metals (Cu, Fe and Zn) along western coast of Bali Strait in Banyuwangi, East Java. Bali Strait is one of the many straits in Indonesia with high fisheries activities that could potentially contributed to high heavy metal pollution. There were five sampling areas from the north to south: Pantai Watu Dodol, Pantai Kalipuro, Ketapang Port, Pantai Boom and Muncar as the fish landing area. Heavy metal pollution in these locations comes from many different activities such as tourism, fish capture and fish industry and also domestic activities. Contamination factor (CF), geo-accumulation index (Igeo) and enrichment factor (EF) of each heavy metal were calculated to obtain contamination status of the research area. The concentrations of Fe were observed the highest (1.5-129.9 mg/kg) followed by Zn (13.2-23.5 mg/kg) and Cu (2.2-7.8 mg/kg). The distribution of Cu, Fe and Zn showed variability among the sampling locations in which high concentrations of Cu and Zn were higher in Ketapang Port, whereas high concentration of Fe was high in almost all sampling locations. According to the pollution index, contamination factors of Cu, Fe and Zn were low (CF < 1 and Igeo < 1). However, high index of EF (> 50) showed high influence of the anthropogenic activities to the contribution of the metals to the environment. This could also because of the high background value used in the calculation of the index due to the difficulties in finding background value from the sampling areas.Keywords: heavy metals, pollution index, contamination factor, geo-accumulation index, Bali Strait

PROBLEM OF HEAVY METAL SURFACE SEDIMENT CONTAMINATION IN THE EASTERN GULF OF FINLAND

2017 ◽  
Author(s):  
N Derugina ◽  
N Derugina ◽  
А Grigoriev ◽  
A Grigoriev ◽  
Дарья Рябчук ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Bottom Sediments ◽  
Late Holocene ◽  
Sediment Contamination ◽  
Gulf Of Finland ◽  
Slow Decline ◽  
Contamination Levels ◽  
The Gulf Of Finland ◽  
Neva Bay

This project defines the pre-industrial quantities of heavy metals in sediment sequences of the Late Holocene from the Eastern Gulf of Finland. A comparative analysis reveals differences and similarities in the current concentrations of heavy metals in bottom sediments and pre-industrial levels. It is found that the maximum concentrations of heavy metals in the bottom sediments of the Gulf of Finland and Neva Bay occurred in the period of 1950-1990. Since the 1990s, the trend has been a slow decline in the contamination levels; however, the concentrations of some heavy metals in bottom sediments remain high.

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