scholarly journals ELEMENTAL HOMEOSTASIS IN WISTAR RATS AS A MANIFESTATION OF ADAPTATION IN AN EXPERIMENT WITH METAL LOADING IN THE FORM OF MICRO- AND NANOPARTICLES

2021 ◽  
Vol 17 (2) ◽  
pp. 27-32
Author(s):  
I.M. Andrusyshyna
Keyword(s):  
Trace Elements ◽  
Chemical Elements ◽  
Animal Experiments ◽  
Intraperitoneal Administration ◽  
Metal Salts ◽  
Free T4 ◽  
Biological Media ◽  
Endocrine Organs ◽  
Elemental Homeostasis ◽  
Al2o3 Nps

Relevance. In recent years, various methods have been widely used to determine the state of adaptation.One of the mechanisms providing adequate adaptation reactions and resistance of the organism to the action of hazardous environmental factors is an increase in the number of intra- and intersystem connections between the content of macronutrients  and  trace elements, as a means of reliable functioning of the organism. Objective. To reveal the typical stages of adaptation of the organism of rats in different conditions of the action of metals by studying the correlation dependences between the content of  macronutrients  and  trace elements in various biological media and assessing the degree of adaptation of the elemental system. Materials and methods. Determination of the content of 14 chemical elements in whole blood and endocrine organs was performed using microwave mineralization of samples and was determined by the OES-ICP method on an Optima 2100 DV device.  The assessment of their ratios and the analysis of correlations between the elements and  the assessment of the degree of resistance of the organism by calculating the index - the degree of adaptation of the elemental system of the organism (A) according to the formula of R.M. Baevsky were carried out. Results. The degree of a, sti of experimental animals to the action of Al and Ag, Cr and Mn compounds was estimated according to the proposed by R. M. Baevsky et al. [4] the formula, taking into account the correlations between of macronutrients  and  trace elements in biological media (degree of adaptation - A). During intraperitoneal administration of metal salts, they were characterized by a stress stage for Al and Cr, the training stages corresponded to a change in the balance of elements under conditions of Mn salt administration. No significant violations of adaptation were found under the conditions of Ag action. Under the conditions of oral administration of metal salts, the degree of adaptation was higher for Ag and Al compounds, the stress stage was characterized by the effect of Mn and Cr salts on elemental homeostasis. Comparison of the action of NPs metal showed a greater adaptation to the action of NPs of Al and Ag oxides and worse to the action of NPs of Mn and Cr citrates. Sex differences in adaptation of animals to the action of metal salts were also revealed. Thus, in males exposed to Al, adaptation was characterized by a training stage, while in females the response to Ag action corresponded to the stress stage. The latter gives grounds to assert that the thyroid gland is more sensitive to Ag than in males. Correlation dependences between the content of metals and hormones in animals, exposed to compounds Ag, Al, Cr, Mn, showed a multidirectional effect of Ag and Al on the correlation between the content of metal and hormone I-TG If a direct correlation was found in the control between the content of metals in the blood and free T4 for animals of all groups, and in the experiment only under the condition of exposure to Al and Cr. For the hormone C-peptide (insulin precursor), a significant correlation was found. The bond was found only under the condition of exposure to Al and Mn. Conclusions. For the first time, an approach was applied to assessing the adaptation of an organism in terms of the balance of macronutrients  and  trace elements  as an intermediate link in the adaptation process of the endocrine system in animal experiments. Comparison of the action of metal NPs showed a greater adaptation to the action of NPs of Al and Ag oxides and worse to the action of NPs of Mn and Cr citrates. Comparison of the effects of MC effect of metal nitrates and NPs of their oxides and hydrates according to the degree of adaptation of the elementary system indicates a higher toxicity of AgNO3, Al (NO3) 3, while the degree of adaptation under the action of NPs Mn-Ctr and Cr-Ct indicates their higher toxicity. Females were found to be more sensitive to Ag2O NPs than males, and the opposite effect was found under the conditions of Al2O3 NPs. The data obtained testify in favor of the existing ideas about the higher toxicity of metals in the form of nanoparticles compared to microparticles, that is, NPs of manganese and chromium citrates are more toxic.

DISTRIBUTION OF DISSOLVED CHEMICAL ELEMENTS IN THE YENISEI RIVER ESTUARY AND ADJACENT WATER AREA OF THE KARA SEA

2017 ◽  
Author(s):  
Alla Savenko ◽  
Alla Savenko ◽  
Oleg Pokrovsky ◽  
Oleg Pokrovsky ◽  
Irina Streletskaya ◽  
...  
Keyword(s):  
Trace Elements ◽  
River Runoff ◽  
Major Ions ◽  
Chemical Elements ◽  
River Estuary ◽  
Water Area ◽  
Kara Sea ◽  
Yenisei River ◽  
Adjacent Water ◽  
The Yenisei River

The distribution of dissolved chemical elements (major ions, nutrients, and trace elements) in the Yenisei River estuary and adjacent water area in 2009 and 2010 are presented. These results were compared to the data obtained during previous hydrochemical studies of this region. The transport of major cations (Na, K, Mg, Ca) and some trace elements (Rb, Cs, Sr, B, F, As, Mo, U) in the estuary follows conservative mixing. Alkalinity also belongs to conservative components, however this parameter exhibits substantial spatial heterogeneity caused by complex hydrological structure of the Yenisei Bay and adjoining part of the Kara Sea formed under the influence of several sources of desalination and salty waters inflow. Concentrations of Pmin, Si, and V in the desalinized waters of photic layer decrease seaward owing to uptake by phytoplankton. The losses of these elements reach 30–57, 30, and 9% of their supply by river runoff, respectively. The content of dissolved phosphates and vanadium in the intermediate and near-bottom layers of the Yenisei River estuary strongly increases with salinity due to regeneration of precipitated organic matter, whereas silica remineralization is much less pronounced. Barium is characterized by additional input of dissolved forms in the mixing zone in the quantity comparable to that carried out by river runoff. This may be caused by its desorption from river suspended matter due to ion exchange. The transport of dissolved Al and Mn in the estuarine zone is probably controlled by the coagulation and flocculation of organic and organomineral colloids, which is indicated by a decrease in the concentration of these elements at the beginning of the estuary (31 and 56%, respectively) followed by a stable concentration further seaward.

scholarly journals Relation among geochemical elements in soil and red chicory as a tool for geographical origin identification.

2021 ◽  
Author(s):  
Elena Marrocchino ◽  
Serena Di Sarcina ◽  
Carlo Ragazzi ◽  
Carmela Vaccaro
Keyword(s):  
Trace Elements ◽  
Geographical Origin ◽  
Chemical Elements ◽  
Accurate Determination ◽  
Analytical Techniques ◽  
Food Products ◽  
Geochemical Data ◽  
Protected Designation Of Origin ◽  
Po Delta

<p>The identification of the geographical origin of food products is important for both consumers and producers to ensure quality and avoid label falsifications. Determination and authentication of the geographical origin of food products throughout scientific research have become recently relevant in investigations against frauds for consumer protection. Advances in methods and analytical techniques led to an increase in the application of fingerprinting analysis of foods for identification of geographical origin. Since in organic material the inorganic component is more stable than the organic one, several studies examined trace elements, suggesting the potential application for determination of geographical origin. Moreover, the studies on territoriality are based on the hypothesis that chemical elements detected in plants and in their products reflect those contained in the soil and, within these studies, the geographical features of the production area, such as the soil type and the climate, are considered relevant factors affecting the specific designation, so an accurate determination of geographical origin would be necessary to guarantee the quality and territoriality of the products.</p><p>In this light, two varieties of red chicory from the southern Po Delta area have been characterized together with the soil. The two inspected red chicory varieties (long-leaves and round-leaves) are cultivated in a well-defined area in the southern part of Po Delta, in an area sited around Massenzatica (Municipality of Mesola, Province of Ferrara, NE of Italy). Sampling was undertaken between October and December 2020 and samples were collected from a randomized field. Together with the red chicory also roots and soils have been collected in order to analyze each part and correlate the geochemical data obtained using ICP-MS and XRF techniques.</p><p>Purpose of this study is to establish a method to identify the geographical origin and the results confirm that some major and trace elements could be used as geochemical markers according to the geological areas. These elements, therefore, could be useful to establish geochemical fingerprints for testing the origin of this product and create a protected designation of origin label.</p>

A Comprehensive Review of Minerals, Trace Elements, and Heavy Metals in Saffron

2022 ◽  
Vol 23 ◽  
Author(s):  
Sayyed Mohammad Ali Noori ◽  
Mohammad Hashemi ◽  
Sajjad Ghasemi
Keyword(s):  
Heavy Metals ◽  
Trace Elements ◽  
Inductively Coupled Plasma ◽  
Chemical Elements ◽  
Absorption Spectrometry ◽  
Atomic Emission ◽  
Emission Spectrometry ◽  
Inductively Coupled ◽  
Wide Range ◽  
The World

Abstract: Saffron is one of the most expensive spices in the world, and its popularity as a tasty food additive is spreading rapidly through many cultures and cuisines. Minerals and heavy metals are minor components found in saffron, which play a key role in the identification of the geographical origin, quality control, and food traceability, while they also affect human health. The chemical elements in saffron are measured using various analytical methods, such as techniques based on spectrometry or spectroscopy, including atomic emission spectrometry, atomic absorption spectrometry, inductively coupled plasma optical emission spectrometry, and inductively coupled plasma mass spectrometry. The present study aimed to review the published articles about heavy metals and minerals in saffron across the world. To date, 64 chemical elements have been found in different types of saffron, which could be divided into three groups of macro-elements, trace elements, and heavy metals (trace elements with a lower gravity/greater than five times that of water and other inorganic sources). Furthermore, the chemical elements in the saffron samples of different countries have a wide range of concentrations. These differences may be affected by geographical condition such as physicochemical properties of the soil, weather and other environmental conditions like saffron cultivation and its genotype.

scholarly journals Prospects of rational security chicken-broilers with mineral substances

2017 ◽  
Vol 19 (79) ◽  
Author(s):  
S. M. Medvid ◽  
A. V. Hunchak ◽  
B. V. Gutyj ◽  
I. B. Ratych
Keyword(s):  
Trace Elements ◽  
Growth And Development ◽  
Broiler Chickens ◽  
Chemical Elements ◽  
Normal Growth ◽  
The Body ◽  
Physical Aspect ◽  
Organic Form ◽  
Geochemical Environment ◽  
Specific Stimulation

The article summarizes the literature data on the provision of the needs of the birds organism to vital or essential trace elements. It is indicated that taking into account the high intensity of growth of broiler chickens, it is important for them to provide not only high-grade protein nutrition but also the creation of a suitable mineral balance. The importance of the natural geochemical environment for the normal growth and development of the bird organism is determined by the possibility of using biogenic chemical elements and their mixtures, through which it is possible to achieve a certain normalization of the basic and intermediate metabolism and to replenish the diet of scarce microelements. The need for animals in the microelements are provided at the expense of their receipt with food and water. In the west region of Ukraine, Iron, Copper, Cobalt, Manganese and Zinc are limiting microelements and their content in feed does not provide the daily requirement for stimulating the growth and development of chicken-broilers in order to enrich the feedstuffs with scarce biometals, as a rule,use salts of various chemical compounds (sulfates, carbonates, chlorides, oxides). However, they are less effective in comparison with microelements in organic form. It is stated that that methionates, glicinates or lysates of microelements affect more effectively metabolic processes. As an alternative to the use of antibiotics in poultry farming. It is promising to use nanoacqualates of biogenic and biocidal metals that can not only to counter the intestinal microflora, but also to stimulate assimilation processes in the body of the bird. Feature of the action of the organic form of the complex of trace elements, madeon the basis of nanotechnology is the ability of various particles of biometals located in a solution or a suspension in the form of atoms, electrons and even smaller particles, to exhibit the same properties that are characteristic of electrons in the classical physical aspect. The positive effect of trace elements in nano-aqua form is manifested as a result of synergy a combination of nonspecific biophysical activation and specific stimulation of the flow metabolic reactions in the bird organism. The article gives a number of positive ones results on the use of nanocarticles, both individual bioelements and their complex for the purpose of intensification of digestive processes in the body of broilers, assimilation nutrient feed, which ultimately reflects on productive qualities bird.

scholarly journals Trace elements and oxygen isotopes of gem spinels in marble from the Luc Yen - An Phu areas, Yen Bai province, North Vietnam

2018 ◽  
Vol 40 (2) ◽  
pp. 165-177 ◽  
Author(s):  
Pham Van Long ◽  
Gaston Giuliani ◽  
Anthony E. Fallick ◽  
Andrian J. Boyce ◽  
Vincent Pardieu
Keyword(s):  
Trace Elements ◽  
Stable Isotope ◽  
Oxygen Isotopes ◽  
Genetic Model ◽  
Chemical Elements ◽  
Isotope Geochemistry ◽  
Isotope Composition ◽  
Stable Isotope Geochemistry ◽  
Oxygen Isotopic ◽  
North Vietnam

Trace elements investigated by electron microprobe analysis (EMPA) have been combined with oxygen isotopic composition of pink, red and other colored spinels (blue, purple, brown, orange, lavender) hosted by marbles and found in placers from Luc Yen and An Phu deposits, Yen Bai province, North Vietnam. The deposits are those from Nuoc Ngap, Cong Troi, Bai Son and different placers from the An Phu area. Trace elements such as Fe-Zn-Cr-V in red and pink gem spinels permit to separate those from Cong Troi and those from the others deposits of the An Phu area. Spinels from Cong Troi have low to extremely low Zn (< 500 ppm) and high Fe contents (3,000 to 16,000 ppm) while those from An Phu area are Zn-rich (up to 11,000 ppm). Iron is the dominant element for the other colored spinels whereas Zn, Cr and V contents are extremely variable. The Bai Son blue spinel is Fe-rich (5,000 to 7,200 ppm) with some V (950 to 1,830 ppm), Cr (270 to 480 ppm), Co (240 to 400 ppm) and Ni (550 to 950 ppm). The O-isotope composition of the whole spinels ranges between 12.1 and 24.2‰ (n = 25). Within each deposit, the range of δ18O values for red, pink and colored spinels is usually similar. However, the red and pink spinels from An Phu present two distinct sets of δ18O values, respectively between  13.2 to 17.0‰  (n = 7) and 22.5< δ18O < 24.2 (n = 5). Those from Cong Troi are from 14.8 to 17.7‰ (n = 3) and their range overlaps that of An Phu. The use of O-isotopes is not useful for distinguishing between the deposits, but the low to extremely low Zn content of the Cong Trois spinels is a discriminant. The variation of δ18O values (12.1 <δ18O < 24.2‰) of the whole spinels indicates that the oxygen isotopic compositions of the metamorphic fluids were probably buffered by the local δ18O values of the impure host marbles.ReferencesChauviré B., Rondeau B., Fritsch E., Ressigeac Ph., Devidal J.-L., 2015. Blue spinel from the Luc Yen district of Vietnam. Gems & Gemology, 51, 2-17.D'Ippolito V., Andreozzi G.B., Hålenius H., Skogby H., Hametner K., Günther D., 2015. Colour mechanisms in spinel: cobalt and iron interplay for the blue colour. Physics and Chemistry of Minerals, 42, 431-439.Garnier V., 2003. Les gisements de rubis associés aux marbres de l’Asie Centrale et du Sud-est: genèse et caractérisation isotopique. PhD thesis INPL, Nancy, France, 373p.Garnier, V., Ohnenstetter, D., Giuliani, G., Maluski, H., Deloule, E., Phan Trong Trinh, Pham Van Long, Hoang Quang Vinh, 2005. Age and significance of ruby-bearing marbles from the Red River shear zone, northern Vietnam. The Canadian Mineralogist, 43, 1315-1329.Garnier V., Giuliani G., Ohnenstetter D., Fallick A.E., Dubessy J., Banks D., Hoang Quang Vinh, Lhomme Th., Maluski H., Pêcher A., Bakhsh K.A., Pham Van Long, Phan Trong Trinh, Schwarz D., 2008. Marble-hosted ruby deposits from central and Southeast Asia: towards a new genetic model. Ore Geology Reviews, 34, 169-191.Giuliani G., Fallick A.E., Garnier V., France-Lanord Ch., Ohnenstetter D., Schwarz D., 2005. Oxygen isotope composition as a tracer for the origins of rubies and sapphires. Geology, 33(4), 249-252.Giuliani G., Fallick A.E., Boyce A.J., Pardieu V., Pham Van Long, 2017. Pink and red spinels in marble: trace elements, oxygen isotopes, and sources. The Canadian Mineralogist, 55, 743-761.Hauzenberger C.A., Häeger T., Baumgartner L.P., Hofmeister W., 2001. High-grade metamorphism and stable isotope geochemistry of N-Vietnamese gem-bearing rocks. In: Proceedings of the Workshop on gems and minerals of Vietnam, Hanoi, 124-138.Hauzenberger C.A., Bagola C., Häeger T., Muellen C., Nguyen Ngoc Khoi, Le Thi Thu Huong, 2014. Mineralogy and petrology of the An Phu marble hosted spinel and corundum deposit, Luc Yen, N-Vietnam. In Proceedings of the 4th International Gem and Jewelry Conference, Chiang Mai, Thailand, 76-78.Kleišmantas A., Daukšyte A., 2016. The influence of Vietnam and Sri Lanka spinel mineral chemical elements on colour. Chemija, 27, 45-51.Kretz R., 1983. Symbols for rock-forming minerals. American Mineralogist, 68, 277-279.Le Thi Thu Huong, Häeger T., Hofmeister W., Hauzenberger C., Schwarz D., Pham Van Long, Wehmeister U., Nguyen Ngoc Khoi, Nguy Tuyet Nhung, 2012. Gemstones from Vietnam: An update. Gems & Gemology, 48, 158-176.Malsy A., Klemm L., 2010. Distinction of gem spinels from the Himalayan mountain belt. Chimia, 64(10), 741-746.Malsy A., Karampelas S., Schwarz D., Klemm L., Armbruster T., Tuan Do Anh, 2012. Orangey-red to orangey-pink gem spinels from a new deposit at Lang Chap (Tan Huong - Truc Lau), Vietnam. The Journal of Gemmology, 33, 19-27.Pham Van Long, Hoang Quang Vinh, Garnier V., Giuliani G., Ohnenstetter D., Lhomme,T., Schwarz D., Fallick A.E., Dubessy J., Phan Trong Trinh, 2004. Gem corundum deposits in Vietnam. Journal of Gemmology, 29, 129-147.Pham Van Long, Pardieu V., Giuliani G., Nguy Tuyet Nhung, Pham Thi Thanh Hien, Pham Duc Anh, Nguyen Ngoc Khoi, Hoang Quang Vinh, 2014. Gemmological characteristics of spinel from Luc Yen, Yen Bai. Journal of Geology, 340, 29-36.Pham Van Long, Pardieu V., Giuliani G., 2014. Update on gemstone mining in Luc Yen, Vietnam. Gems & Gemology, 49, 233-245.Pouchou J.L., Pichoir F., 1991. Quantitative analysis of homogeneous or stratified microvolumes applying "PAP" In Electron Probe Quantification (K.F.J. Heinrich & D.E. Newbury eds.). Plenum Press, New York, USA, 31-75.Valley J.W., 1986. Stable isotope geochemistry of metamorphic rocks. Reviews in Mineralogy, 16, 445-481.Yui T.F., Khin Zaw, Wu C.-M., 2008. A preliminary stable isotope study on Mogok ruby, Myanmar. Ore Geology Reviews, 34, 182-199.

scholarly journals Multistages mineralization and transformation of terrigenous rocks in the Vyun ore field, Yana-Kolyma metallogenic belt, Northeast Asia: insight from the sedimentary, diagenetic and hydrothermal sulfides and geochemistry of ore-hosting rocks

2021 ◽  
Vol 906 (1) ◽  
pp. 012041
Author(s):  
Lena Polufuntikova ◽  
Valery Fridovsky ◽  
Yaroslav Tarasov ◽  
Maksim Kudrin
Keyword(s):  
Trace Elements ◽  
Middle Jurassic ◽  
Chemical Elements ◽  
Northeast Asia ◽  
Upper Triassic ◽  
Terrigenous Rocks ◽  
Metallogenic Belt ◽  
Oxygen Conditions ◽  
Hydrothermal Sulfides ◽  
Epigenetic Processes

Abstract The article presents the results of studying the sulfidization zone of the Charky-Indigirka thrust fault within the Vyun ore field in the Upper Adycha sector of the Yana-Kolyma metallogenic belt. The purpose of the research is to study the composition and distribution of basic and trace elements in terrigenous rocks of the Upper Triassic and Middle Jurassic, as well as in distal metasomatites on the territory of the Vyun ore field. The petrochemical features of weakly altered terrigenous rocks, conditions of their formation and changes of composition during epigenetic processes were analyzed. Three generations of pyrite were identified: diagenetic Py1, metamorphogenic Py2 and metasomatic Py3. Typomorphic trace elements and variations of their distribution in pyrites were determined. Composition analyses of weakly altered sedimentary rocks of the Upper Triassic (V/(V+Ni)=0.5-0.8, V/Cr=0.1-2.9 and Ni/Co=2.5-10.3) and Middle Jurassic (V/(V+Ni)=0.7-0.9, V/Cr=0.2-2.0 and Ni/Co=1.3-8.8) yielded the conclusion that changes in oxygen conditions to disoxic and anoxic, as well as the enrichment of terrigenous material with ore elements, lead to the formation of authigenic sulfide mineralization at the early stages of the sedimentary strata formation. The subsequent multistage development of the territory was accompanied by an active migration of chemical elements, their input and redistribution.

scholarly journals Influence of the Indicators of Carbohydrate Metabolism on the Elemental Status

2021 ◽  
Author(s):  
Olga Marshinskaia ◽  
Tatiana Kazakova ◽  
Svetlana Notova ◽  
Maksim Molchanov
Keyword(s):  
Diabetes Mellitus ◽  
Trace Elements ◽  
Toxic Elements ◽  
Normal Values ◽  
Chemical Elements ◽  
Serum Parameters ◽  
Glucose Levels ◽  
Icp Ms ◽  
Elemental Status ◽  
Elevated Glucose

This study examined the elemental status of the hair and blood biochemistry of young men in the Orenburg region (n=38) with different glucose levels. Estimation of the element status was carried out through the study of the chemical composition of the hair by ICP-AES and ICP-MS. It was found that the studied serum parameters (Ca, Mg, Fe, P cholesterol, thyroxine, TSH and testosterone) were within normal values, and no statistically significant differences were obtained when comparing the groups. The concentration of chemical elements in the hair of the men in each group was in the range of physiologically acceptable values for this region. In the group with elevated glucose levels, there was a tendency for the men to have lower values of Ca and Mg, and higher levels of K, Na, P and a number of toxic elements (Al, Cd, Sn, Hg, Pb). Keywords: elemental status, trace elements, diabetes mellitus, metabolism

scholarly journals Influence of the concentrations of essential and toxic elements in the blood serum on the indicators of sperm quality in Arabian purebred stallions

2022 ◽  
Vol 42 ◽  
pp. 01019
Author(s):  
V. V. Kalashnikov ◽  
A. M. Zaitsev ◽  
M. M. Atroschenko ◽  
O. A. Zavyalov ◽  
A. N. Frolov ◽  
...  
Keyword(s):  
Trace Elements ◽  
Reproductive Health ◽  
Blood Serum ◽  
Toxic Elements ◽  
Chemical Elements ◽  
Sperm Quality ◽  
Optimal Range ◽  
Essential And Toxic Elements ◽  
The Relationship ◽  
Qualitative Characteristics

Analysis of trace elements in blood serum can be an important tool for monitoring micronutrient supply in stallions in order to maintain reproductive health. In this regard, the purpose of this study was to determine the relationship between the concentrations of macro- and microelements in the blood serum of stud stallions with the qualitative characteristics of fresh sperm and sperm after cryopreservation and thawing. The studies were carried out on purebred Arabian stallions (n=50). As a biomaterial for studies, we used blood serum, fresh and thawed sperm after cryopreservation. The elemental composition of seminal plasma was determined by 25 chemical elements Co, Cr, Cu, Fe, I, Mn, Se, Zn Ca, K, Mg, P, B, Li, Si, V Na, Ni, Sn, Hg, Sr, Al, As, Cd, Pb) by ICP-DRC-MS methods. It was found that the concentrations of Mg and Co in the blood serum positively correlate with the qualitative characteristics of the sperm of Arabian purebred stallions. Wherein, the optimal range of concentrations of Mg in the blood serum, typical for stallions with relatively high indicators of sperm quality, is 22.64 to 27.05 μg/g; Co – 0.001 to 0.0015 μg/g.

DISTRIBUTION OF DISSOLVED CHEMICAL ELEMENTS IN THE YENISEI RIVER ESTUARY AND ADJACENT WATER AREA OF THE KARA SEA

2017 ◽  
Author(s):  
Alla Savenko ◽  
Alla Savenko ◽  
Oleg Pokrovsky ◽  
Oleg Pokrovsky ◽  
Irina Streletskaya ◽  
...  
Keyword(s):  
Trace Elements ◽  
River Runoff ◽  
Major Ions ◽  
Chemical Elements ◽  
River Estuary ◽  
Water Area ◽  
Kara Sea ◽  
Yenisei River ◽  
Adjacent Water ◽  
The Yenisei River

The distribution of dissolved chemical elements (major ions, nutrients, and trace elements) in the Yenisei River estuary and adjacent water area in 2009 and 2010 are presented. These results were compared to the data obtained during previous hydrochemical studies of this region. The transport of major cations (Na, K, Mg, Ca) and some trace elements (Rb, Cs, Sr, B, F, As, Mo, U) in the estuary follows conservative mixing. Alkalinity also belongs to conservative components, however this parameter exhibits substantial spatial heterogeneity caused by complex hydrological structure of the Yenisei Bay and adjoining part of the Kara Sea formed under the influence of several sources of desalination and salty waters inflow. Concentrations of Pmin, Si, and V in the desalinized waters of photic layer decrease seaward owing to uptake by phytoplankton. The losses of these elements reach 30–57, 30, and 9% of their supply by river runoff, respectively. The content of dissolved phosphates and vanadium in the intermediate and near-bottom layers of the Yenisei River estuary strongly increases with salinity due to regeneration of precipitated organic matter, whereas silica remineralization is much less pronounced. Barium is characterized by additional input of dissolved forms in the mixing zone in the quantity comparable to that carried out by river runoff. This may be caused by its desorption from river suspended matter due to ion exchange. The transport of dissolved Al and Mn in the estuarine zone is probably controlled by the coagulation and flocculation of organic and organomineral colloids, which is indicated by a decrease in the concentration of these elements at the beginning of the estuary (31 and 56%, respectively) followed by a stable concentration further seaward.

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.

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