scholarly journals Bioaccumulation of heavy metals in the dice snake Natrix tessellata (Reptilia, Colubridae) from ecosystems of different anthropogenic loads in modern conditions of the steppe Dnieper area

2019 ◽  
Vol 30 (2) ◽  
pp. 113-117
Author(s):  
S. V. Yermolenko ◽  
V. Ya. Gasso ◽  
A. M. Hagut ◽  
I. A. Hasso ◽  
V. A. Spirina
Keyword(s):  
Heavy Metals ◽  
Trace Elements ◽  
Bone Tissue ◽  
Thermal Power ◽  
Zinc Content ◽  
Atomic Absorption Spectrophotometry ◽  
Natural Ecosystems ◽  
Lead Zinc ◽  
Nature Park ◽  
Cadmium Lead

We studied the peculiarities of bioaccumulation and distribution of heavy metals (cadmium, lead, zinc and copper) in the bone tissue, liver and kidneys of the dice snake Natrix tessellata (Laurenti, 1768) inhabited ecosystems under different anthropogenic loads in 2015-2016. Mature individuals were caught in anthropogenically transformed ecosystems of the sanitary-protective zone of the Dniprovska Thermal Power Plant (SPZ DTPP) (48.402°N, 35.111°E, n = 7), coastal ecosystems of the National Nature Park «Velykyi Luh» (47.443°N, 35.149°E, n = 8) and in the Maiorka gully ecosystems (48.260°N, 35.170°E, n = 7). The gross content of metals in the organs of N. tessellata was determined after their dry ashing in a muffle furnace. Determination of the trace elements was performed by atomic absorption spectrophotometry. Among the studied trace elements, zinc has the highest concentrations in the liver, kidneys and bones of N. tessellata. The kidneys and liver are characterized by such amount of concentrations: Zn> Cu> Pb> Cd, but bone tissue has the following ratio Zn> Pb> Cu> Cd. The highest concentration of cadmium is found in the kidneys, and the lowest one – in the bones of snakes. There are the highest contents of lead and copper in the snakes’ liver, but the lowest in the kidneys and bones. The lead bioaccumulations in organs of snakes from different ecosystems are dissimilar. Zinc content in bones is higher than in kidneys and liver, but the lowest concentration is found in the kidneys. It has been found that the highest contents of toxic metals (Cd, Pb) were in the kidneys and liver of the snakes dwelled in the SPZ DTPP ecosystems in comparison with both studied natural ecosystems. In addition, snakes caught in anthropogenically transformed ecosystems of SPZ DTPP are characterised by increased zinc content in all studied organs and enlarged copper concentration in the kidneys. Considering the obtained results on the metals bioaccumulation, the dice snake can be considered as a potential bio-indicator of environmental pollution by heavy metals.

scholarly journals Influence of Bottom Sediments Physicochemical Characteristics on Distribution of Microelements in the Crimean Shelf Water Areas

2020 ◽  
Author(s):  
E. A. Kotelyanets ◽  
K. I. Gurov ◽  
◽  
Keyword(s):  
Heavy Metals ◽  
Trace Elements ◽  
Spatial Distribution ◽  
Organic Carbon ◽  
Bottom Sediments ◽  
Clay Fraction ◽  
Zinc Content ◽  
Physicochemical Characteristics ◽  
Water Area ◽  
Pollution Level

The paper presents the results of studies of the Kalamitsky Bay bottom sediments pollution level with microelements and heavy metals (Pb, Zn, Cu, Ni, Co, Cr, V, As, Sr, Ti, Fe, Mn) in comparison with the content of these microelements and heavy metals in the Balaklava Bay sediments. The paper analyzes data obtained during expeditions on the R/V Professor Vodyanitsky in the Kalamitsky Gulf in August 2011 (seaward part) and on the R/V Rioni in September 2012 (coastal area) as well as in the Balaklava Bay in October 2018. Content of microelements and heavy metals in bottom sediments of the studied water areas was determined by the X-ray fluorescence method using Spectroscan MAX-G device. For the water area of the Kalamitsky Gulf, the features of the studied trace element spatial distribution are considered, groups of trace elements with different spatial distribution patterns are identified. The correlation analysis determined influence of physicochemical characteristics of the sediments on distribution and accumulation of trace elements. In the water area of the Kalamitsky Gulf, a statistically significant correlation was observed of nickel, iron and zinc content with the clay fraction; dependance of increased concentrations of zinc, nickel and chrome on the content of organic carbon and predominance of lead in highcarbonate sediments. For the Balaklava Bay, the maximum positive values of correlations with the pelitic-silty fraction were noted for iron, manganese, vanadium and chrome; organic carbon correlates with chrome, iron, nickel and copper, whereas carbonates correlate with strontium. Similar patterns were observed earlier in the Sevastopol region bays, Feodosiya Gulf and Kerch Strait.

scholarly journals CONCENTRATION OF HEAVY METALS IN WATER FLOWS IN THE AREA OF UNALSKY TAILING DUMP AND ARDON RIVER

2018 ◽  
Vol 13 (2) ◽  
pp. 113-122 ◽  
Author(s):  
Dzerassa N. Chigoeva ◽  
Inna Z. Kamanina ◽  
Svetlana P. Kaplina
Keyword(s):  
Heavy Metals ◽  
Production Capacity ◽  
Chemical Pollution ◽  
Environmental Disaster ◽  
Tailing Dump ◽  
Maximum Permissible Concentrations ◽  
History Of ◽  
Lead Zinc ◽  
Domestic Use ◽  
Cadmium Lead

The long history of development of deposits of lead-zinc ores of the Sadonsky mining region led to the formation of extensive halos of chemical pollution of surface watercourses. Aim. The aim of this study is to monitor surface watercourses in the area of the Unalsky tailing dumps and the Kholst deposit by points of sampling of 1992-2004. Sampling was conducted in the summer of 2016. Methods. The content of heavy metals of 2 and 3 hazard classes (Pb, Cd, Ni, Zn and Cu) was studied by atomic absorption. The contribution of the Unaldon River and Unalsky tailing dump to the pollution of the Ardon River. Results. The highest content of cadmium, lead and zinc, significantly exceeding the maximum permissible concentrations (MPC) in the water bodies of cultural and domestic use is found in the Ardon River down from the Unalsky tailing dump. The flow of heavy metals into the Unaldon River with adit waters compared with the observation period of 1992-2004 decreased noticeably. In conditions of a reduction in the production capacity of mining and processing enterprises, the leaching of heavy metals from mountain dumps and excavations make an insignificant contribution to the pollution of the Ardon River in comparison with the Unalsky tailing dump. Conclusion. The state of the Ardon River down from the discharge from the tailing dump corresponds to the "environmental disaster" category. The condition of the rivers Mayramdon and Unaldon according to the content of heavy metals corresponds to a "relatively satisfactory" type.

scholarly journals The Effects Of Heavy Metals On The Morphological And Biochemical Composition Of The Blood Of Young Cattle Taking Into Account Of Breed Features

2020 ◽  
Author(s):  
Rustem B. Temiraev ◽  
Yusup A. Yuldashbaev ◽  
Susanna K. Cherchesova ◽  
Sofia F. Lamarton ◽  
Valentina S. Gappoeva ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Bone Tissue ◽  
Biochemical Composition ◽  
Group Iii ◽  
Black And White ◽  
Group I ◽  
White Breed ◽  
Long Time ◽  
Young Cattle ◽  
Cadmium Lead

AbstractHeavy metals can selectively accumulate in certain organs and remain in them for a long time. As a result, the accumulation of metal in one or another organ may cause strongest intoxication of the animal. The purpose of the research is to study the morphological and biochemical composition of the blood of young cattle of different breeds of the dairy and dairy-and-beef direction of productivity fed in the technogenic zone in the RNO-Alania diets with a high content of heavy metals. According to the principle of analogues, taking into account the breed, origin, age, sex and body weight, 4 groups of 10 animals each of different breed were formed: Group I - black and white, Group II - Danish Red, Group III - Swiss, and Group IV - Simmental. The experimental material was statistically processed using the Microsoft Excel software for mathematical analysis. With a tendency of unreliable differences in morphological indices of blood, in diminishing numbers of erythrocytes and hemoglobin, the test breeds should be arranged in the following order: Simmental → Swiss → Red Danish → Black and White. At the same time, as compared to the animals of the black-and-white breed, the young cattle of the Simmental breed showed the best level of intermediate metabolism, which resulted in an increase in total protein and sugar in the blood, which indicates an improvement in their protein and energy metabolism; an increase in the content of albumin in the liquid internal medium and γ-globulins;an increase inconcentration oftotal lipids in serum, respectively, while reducing the level of cholesterol, which indicates an improvement fat metabolism in animals; a significant (P <0.05) decrease in blood saturation with cadmium, lead and zinc, respectively, by 26.8, 48.8 and 30.6%. The highest content of these elements was noted in the wool, then in decreasing order: in bone tissue → liver → muscle tissue → lungs → kidneys. Moreover, between the level of heavy metals in muscles, liver and lungs, on the one hand, and in the wool, bone tissue and kidneys, on the other hand, there was an inversely proportional relationship.

INFLUENCE OF TEHNOGENIC CONTAMINATION ON INDEXES OF THE STATE OF FREE-RADICAL OXIDIZATION AND MICRONUTRIENTN STATUS FOR WORKERS OF THE FILLINGS STATIONS, RESIDENTS OF KHMAO – YUGRA

2017 ◽  
pp. 39-42
Author(s):  
V.I. Korchin ◽  
Yu.S. Makaeva ◽  
T.Ya. Korchina ◽  
E.A. Shagina
Keyword(s):  
Heavy Metals ◽  
Antioxidant Activity ◽  
Trace Elements ◽  
Free Radical ◽  
Chemical Elements ◽  
The State ◽  
Toxic Chemical ◽  
Antioxidant Defence ◽  
Low Concentration ◽  
Cadmium Lead

Тhe analysis of metabolic violations and microelement disbalance is presented for the workers of the fillings stations on territory of KHMAO – Yugra. The expressed changes are set in the processes of oxidizing stress and antioxidant defence. In the hairs was registered the meaningful exceeding of concentration of toxic chemical elements (cadmium, lead) and iron possessing pro-oxidant properties on a background reliable to low concentration of the universal antagonist of heavy metals – by a calcium and trace elements possessing antioxidant activity (selenium, zinc) – in the organism.

ZINC AND MANGANESE CONTENTS OF MICRO-DISSECTED PANCREATIC ISLETS OF SOME RODENTS

1977 ◽  
Vol 86 (3) ◽  
pp. 570-577 ◽  
Author(s):  
Niilo Havu ◽  
Gillis Lundgren ◽  
Sture Falkmer
Keyword(s):  
Heavy Metals ◽  
Guinea Pig ◽  
Pancreatic Islets ◽  
Guinea Pigs ◽  
Graphite Furnace ◽  
Chinese Hamster ◽  
Zinc Content ◽  
Wistar Rat ◽  
Atomic Absorption Spectrophotometry ◽  
Absorption Spectrophotometry

ABSTRACT By a flameless atomic absorption spectrophotometry procedure, using a graphite furnace, it was possible to assay the contents of zinc and manganese in micro-dissected pancreatic islets of several rodents. Interest was focused upon the islets of guinea-pigs, due to the fact that guinea-pig insulin lacks a histidine residue in the B10 position of the molecule which normally binds zinc (or other heavy metals) in the hexamer formation, probably involved in the storage of insulin. Both the zinc and manganese contents were too low in the guinea-pig islet parenchyma to be reasonably involved in the storage of insulin in the β-granules. Instead, it was suggested that guinea-pig insulin, like hagfish insulin, might crystallize without access to zinc or other heavy metals. Low zinc and manganese contents were also observed in newborn and diabetic guinea-pigs. The islet zinc content was high in the Wistar rat, the Chinese hamster, and the spiny mouse. No significant amounts of manganese were found in any of these kinds of islet parenchyma.

scholarly journals Quality of Commercial Coffees: Heavy Metal and Ash Contents

2018 ◽  
Vol 2018 ◽  
pp. 1-7 ◽  
Author(s):  
Mariana Teixeira Pigozzi ◽  
Flávia Regina Passos ◽  
Fabrícia Queiroz Mendes
Keyword(s):  
Heavy Metals ◽  
Atomic Absorption Spectrophotometry ◽  
Ash Content ◽  
Flame Atomic Absorption Spectrophotometry ◽  
Absorption Spectrophotometry ◽  
Flame Atomic Absorption ◽  
Brazilian Legislation ◽  
Cadmium Lead ◽  
Ground Coffee

This study aimed to quantify the ash content and to determine the concentration of heavy metals in roasted ground coffee and their respective infusions. The ash content was determined by incineration of the samples, and the quantification of heavy metals was performed by flame atomic absorption spectrophotometry for the following metals: cadmium, lead, copper, chromium, nickel, and zinc. According to the ash analysis, 15% of the roasted ground coffee samples were within the standards established by the legislation of the state of São Paulo, which has set an ash content of below 5%. In the roasted ground coffee samples, the Cd, Cu, Ni, and Zn contents did not exceed the limit established by Brazilian legislation. In several samples, both Pb and Cr were found in high levels, exceeding the limits established by Brazilian legislation. In the infusions of roasted ground coffee, the Cd, Cu, Cr, and Ni contents were below the detection limit of the equipment. Zn was found in all infusions and Pb was only detected in seven coffee infusion samples. Overall, the concentrations of heavy metals found in the commercially roasted ground coffee and their respective infusions are lower than the limits recommended by the official inspection agencies and, thus, are suitable for consumption.

scholarly journals Ecological assessment of heavy metal pollution of groundwater in Kyiv region

2021 ◽  
pp. 88-97
Author(s):  
I. Shumigay ◽  
O. Yermishev ◽  
N. Маnіshеvskа
Keyword(s):  
Heavy Metals ◽  
Trace Elements ◽  
Drinking Water ◽  
Human Body ◽  
Total Concentration ◽  
Environmental Pollutants ◽  
Zinc Content ◽  
Chemical Pollution ◽  
Long Term Effects ◽  
Human Environment

In recent years, as a result of intense anthropogenic impact, the composition of groundwater has changed markedly. Despite the relatively high protection of groundwater from pollution, the content of pollutants is detected in significant quantities. One of the priority groups of chemical pollution is heavy metals, which belong to an important group of environmental pollutants. Depending on the forms of being in the water, they differ in their chemical and biological activity. Currently, determining the quality of groundwater, identification of trace elements is a topical issue. This article presents the results of research on the content of trace elements in groundwater. Analysis of the content of heavy metals in the wells of Kyiv region during 2020 shows that a significant excess of water pollution by heavy metals is not observed. Taking into account the current MPC, a small excess of iron and zinc content was noted in Volodarskyi district. Heavy metals are known to have mutagenic, toxic effects and affect the intensity of biochemical processes. But the toxicity of trace elements is determined not by their total concentration in water, but by the forms of finding. Therefore, the presence of VM in drinking water samples is highly undesirable, as there will be a constant supply of chronic doses to the human body. As a result, it became necessary to calculate the total pollution of heavy metals, groundwater samples in Kyiv region. In addition, the ecological state of the environment is directly related to changes in the internal human environment. It is the deficiency or excess of certain microelements in drinking water or non-observance of its stable chemical composition in certain areas that from time to time outbreaks of diseases, the cause of which is difficult to establish. Heavy metals that can be found in drinking water are very harmful to human health. The most dangerous Cd, Pb, because on the one hand their man-made accumulation in the environment is quite high, and on the other — these elements have a significant affinity for physiologically important organic compounds and can inhibit the most important metabolic processes, inhibit growth and development. Their long-term effects on the human body can lead to the development of cancer, damage to organs, the nervous system, and in extreme cases, to death, as noted in the publication.

scholarly journals Monitoring of heavy metal contamination of soil and plants (for example, Potentilla tanacetifolia Willd. ex Schlecht.) of natural ecosystems in Chita urban areas

2018 ◽  
Vol 7 (1) ◽  
pp. 110-115
Author(s):  
Galina Yurievna Samoilenko ◽  
Evgeniy Aleksandrovich Bondarevich ◽  
Natalia Nikolaevna Kotsyurzhinskaya ◽  
Igor Anatolyevich Boriskin
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Urban Areas ◽  
Heavy Metal Contamination ◽  
Soil Samples ◽  
Natural Ecosystems ◽  
High Concentration ◽  
Mobile Forms ◽  
Zinc Cadmium ◽  
Cadmium Lead

The paper presents data on the content of gross and mobile forms of zinc, cadmium, lead and copper in the soils of Chita and its surroundings. The paper contains a comparative analysis of the accumulation (Kn) and movement (KP) coefficients of these microelements in organs ( Potentilla tanacetifolia Willd. ex Schlecht.), relative to their gross content and mobile forms in soils. The authors have revealed that soil samples of the studied sites contain unequal gross amount of heavy metals. In some points (6 and 3) the content of cadmium and zinc exceeded the Mac, that is why such soils have been attributed to heavily polluted. The index of biological activity on mobile forms of heavy metals in all sites significantly exceeded the same index on gross forms. It was found that Potentilla tanacetifolia are accumulators of heavy metal ions. Aboveground bodies accumulate and absorb cadmium and copper especially intensively, thus the content of mobile forms of these metals in the soil is insignificant. Excessive adsorption of trace elements in the phytomass of plants can be connected with surface contamination. According to the content of zinc and lead, the accumulation values in the organs of P. tanacetifolia were characterized by small coefficient values, against the background of their high concentration in the soil.

scholarly journals Studies of Soils and Vegetation on Non-ferrous Metallurgy Slag Dumps

2021 ◽  
Vol 12 (1) ◽  
pp. 040-046
Author(s):  
Ekaterina Zolotova ◽  
Keyword(s):  
Heavy Metals ◽  
Ferrous Metallurgy ◽  
Floristic Composition ◽  
Metallurgical Industry ◽  
Ore Deposits ◽  
Copper Smelting ◽  
Natural Ecosystems ◽  
Copper Ore ◽  
Lead Zinc ◽  
Heavy Pollution

The metallurgical industry is one of the major pollution sources of natural ecosystems. Now the slag dumps of non-ferrous industries occupy huge areas all over the world. The purpose of this literature review was to assess the knowledge degree of the soils and vegetation formed on the non-ferrous metallurgy slag dumps. Most of the research was carried out for the dumps of the copper-smelting (including old dumps) and lead-zinc industries, the dumps of the nickel and aluminum industries have been studied to a lesser extent. The composition of non-ferrous metallurgy slags, the issues of soil pollution with heavy metals, their bioavailability were discussed. The influence of heavy pollution on the biodiversity of pioneer plant communities on the slag dumps of non-ferrous metallurgy and the floristic composition for abandoned copper ore deposits are noted. The experience of Russian scientists in the reclamation of an aluminum sludge dump and Chinese scientists in the reclamation of zinc production slag dumps are considered. The possibility of introducing waste from the copper smelting slag recycling waste into natural ecosystems was discussed. The analysis of literature revealed gaps in knowledge about the gradual formation of the soil and vegetation on man-made landscapes, about the plant biodiversity in conditions of heavy pollution, ways of their adaptation, and the heavy metals accumulation by different plant species.

Determination of trace quantities of heavy metals in food by anodic voltammetry. Determination of cadmium, lead and copper in beer

1985 ◽  
Vol 50 (5) ◽  
pp. 1141-1146 ◽  
Author(s):  
Alireza Aliakbar ◽  
Milan Popl
Keyword(s):  
Heavy Metals ◽  
Atomic Absorption ◽  
Simplex Method ◽  
Atomic Absorption Spectrophotometry ◽  
Sample Treatment ◽  
Optimum Conditions ◽  
Absorption Spectrophotometry ◽  
Cadmium Lead ◽  
Anodic Voltammetry

The optimum conditions for the determination of Cd, Pb, and Cu in beer were sought by the factorial design and the simplex method approaches. Two methods of sample treatment were used, viz. mineralization and mineralization combined with ashing. The values obtained, 0.32 μg l-1 for Cd, 15.6 μg l-1 for Pb, and 64.7 μg l-1 for Cu, were compared with those obtained by atomic absorption spectrophotometry.

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