scholarly journals Accumulation of heavy metals in aquatic vegetation of the Barguzin River

2020 ◽  
Vol 169 ◽  
pp. 01018
Author(s):  
Valentina G. Shiretorova ◽  
Svetlava V. Zhigzhitzhapova ◽  
Elena P. Dylenova ◽  
Larisa D. Radnaeva
Keyword(s):  
Heavy Metals ◽  
Aquatic Vegetation ◽  
Risk Assessments ◽  
Potamogeton Pectinatus ◽  
Environmental Standards ◽  
Baikal Lake ◽  
Nymphoides Peltata ◽  
Potamogeton Perfoliatus ◽  
Accumulation Of Metals ◽  
Hippuris Vulgaris

This study is devoted to the analysis of the distribution of heavy metals in the aquatic system of the Barguzin River. This is one of the largest rivers of the Baikal lake system. The element composition of the aerial scion of Potamogeton pectinatus L. (syn. Stukenia pectinata (L.) Borner), Potamogeton perfoliatus L., Hippuris vulgaris L. and Nymphoides peltata (S.G. Gmelin) O. Kuntze of the Barguzin River is studied in this research. One of the main results of the study is the establishment of the following sequence of the accumulation of metals in aquatic plants: Mn > Fe > Сu (Zn) > Сr > Ni > Сo > Pb > Cd > Hg. Hippuris vulgaris L. contains the highest concentration of the studied metals. Thus, this research provides one of the important steps for the development of regional environmental standards and environmental risk assessments.

Metals Removal and Recovery by Arthrobacter sp. Biomass

1992 ◽  
Vol 26 (9-11) ◽  
pp. 2149-2152 ◽  
Author(s):  
A. Grappelli ◽  
L. Campanella ◽  
E. Cardarelli ◽  
F. Mazzei ◽  
M. Cordatore ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Industrial Wastes ◽  
Gram Negative Bacteria ◽  
Gram Negative ◽  
Real Possibility ◽  
Metals Removal ◽  
Metal Capture ◽  
Accumulation Of Metals ◽  
Removal And Recovery

Experiments on the real possibility of employing microorganisms to capture inorganic polluting substances, mainly heavy metals from urban and industrial wastes, are running using bacteria biomass. Many strains of Arthrobacter spp., gram-negative bacteria, diffused in the soil also inacondition of environmental stresses, have been proved to be particulary effective in heavy metal capture (Cd, Cr, Pb, Cu, Zn). The active and passive processes in accumulation of metals by bacteria were studied. Our experiments have been done on fluid biomass and on a membrane both for practical use and for an easy recovery.

scholarly journals Heavy Metals Concentrations in Fish from Red Sea and Arabian Gulf: Health Benefits and Risk Assessments due to their Consumption

2015 ◽  
Vol 27 (12) ◽  
pp. 4411-4416 ◽  
Author(s):  
K.T. Kamal ◽  
K. Lotfi ◽  
K.D. Omar ◽  
R.E. Mohamed ◽  
K.M. Abueliz ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Red Sea ◽  
Arabian Gulf ◽  
Health Benefits ◽  
Risk Assessments

scholarly journals NIGHT MIGRATION COMPLEX OF ENDEMIC AMFIPOD AS AN INDICATOR OF ENVIRONMENTAL STATE BAIKAL LAKE

2020 ◽  
Author(s):  
V.V. Takhteev ◽  
◽  
D.A. Batranin ◽  
I.O. Eropova ◽  
E.B. Govorukhina ◽  
...  
Keyword(s):  
Organic Matter ◽  
Lake Baikal ◽  
Aquatic Vegetation ◽  
Pelagic Zone ◽  
Baikal Lake ◽  
Anthropogenic Eutrophication

With the ongoing anthropogenic eutrophication of the Lake Baikal there is an increase in the abundance not only of aquatic vegetation, but also organismsconsumers. As consumers of vegetable detritus are crustaceans – amphipods, which, by eating detritus, partially reduce the pollution of the lake with rotting organic matter. A significant increase in their number is evidenced by the increase in the abundance of amphipods in the nocturnal migratory complex in the coastal pelagic zone.

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.

Incorporating bioaccessibility into human health risk assessments of heavy metals in urban park soils

2012 ◽  
Vol 424 ◽  
pp. 88-96 ◽  
Author(s):  
Xiao-San Luo ◽  
Jing Ding ◽  
Bo Xu ◽  
Yi-Jie Wang ◽  
Hong-Bo Li ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Health Risk ◽  
Human Health ◽  
Human Health Risk ◽  
Risk Assessments ◽  
Urban Park ◽  
Health Risk Assessments

Concentrations of heavy metals in marine wild fishes captured from the southern sea of Korea and associated health risk assessments

2017 ◽  
Vol 52 (4) ◽  
pp. 527-536 ◽  
Author(s):  
Dong-Woon Hwang ◽  
Seong-Soo Kim ◽  
Seong-Gil Kim ◽  
Dong-Sun Kim ◽  
Tae-Hoon Kim
Keyword(s):  
Heavy Metals ◽  
Health Risk ◽  
Risk Assessments ◽  
Health Risk Assessments

Distributions of arsenic and other heavy metals, and health risk assessments for groundwater in the Guanzhong Plain region of China

2020 ◽  
Vol 181 ◽  
pp. 108957 ◽  
Author(s):  
Jiangbo Qiao ◽  
Yuanjun Zhu ◽  
Xiaoxu Jia ◽  
Ming'an Shao ◽  
Xiaoqian Niu ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Health Risk ◽  
Risk Assessments ◽  
Plain Region ◽  
Health Risk Assessments

The Accumulation of Metals in Caloplaca Aurantia Growing on Concrete Roof Tiles

1986 ◽  
Vol 18 (3) ◽  
pp. 257-263 ◽  
Author(s):  
J. Garty ◽  
Margalith Galun ◽  
Y. Hochberg
Keyword(s):  
Heavy Metals ◽  
Metal Concentration ◽  
Relative Content ◽  
Polluted Area ◽  
Accumulation Of Metals ◽  
High Concentrations ◽  
Heavily Polluted Area

AbstractThe lichen Caloplaca aurantia, when growing on concrete roof tiles, accumulates high concentrations of heavy metals. The uptake correlates with the ambient metal concentration. The results of lichen and substratum analyses of samples from a heavily polluted area indicate that the concentrations of metals in the lichen are many times higher than in the substratum. The relative content of the eight metals, Fe, Mn, Zn, Cu, Pb, Cr, Ni and Cd was determined. The content of Fe, Cr, Ni and Cd was not significantly different in the various tile zones sampled. Fe, Mn, Zn, Cu, Cr, Ni and Cd were mainly taken up by the lichen directly from the atmosphere. The uptake of these metals from the tile is almost negligible. The maximum uptake of Pb by C. aurantia from the tile glaze was 10.95°° of the total amount in the lichen. The presence of the lichen on the tiles prevents the penetration of Pb, Zn and Mn into the substratum.

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