scholarly journals Trace element content in alluvial soils landscape of the flood plains of the Iput river

2021 ◽  
pp. 34-38
Author(s):  
Andrei Leonidovich Silaev ◽  
Sergey Fedorovich Chesalin ◽  
Gennady Vladimirovich Chekin ◽  
Evgeny Vladimirovich Smolsky

The results of research on the content and distribution of trace elements in alluvial soils of various elements of the floodplain landscape, and their relationship with fertility indicators are presented. It has been found that the maximum concentrations of most trace elements (Ni, Zn, Mn, Cr, Co, Mo, As) are characteristic of the alluvial overhanging-marsh heavy-coal pristine subsystem of the floodplain landscape. In the riverine and perish subsystems of the floodplain landscape in individual layers of the corresponding soils, an excess of clark was found: in the alluvial sour acid layered primitive shortened sandy loam Cu by 1.5; Zn in 1.1; Cd 9.2 times, in alluvial chilli-marsh heavy-coal Cu 1.05; Zn in 1.4; Mn in 1.01; Cr in 1,2; Cd 3.2 times. For the riverine and perch subsystems, the excess of Cu, Mn and Cr was observed in the soil layer 0-5 cm, the remaining exceedances are characteristic of deeper layers. Decreasing rows of trace elements in alluvial soils have a similar structure. The microelements in question, in the soils of the floodplain landscape of the Iput River, in terms of clark concentration, belong to the group of dispersing. There is no significant correlation between micronutrient content and fertility of the alluvial soils under consideration.

Forests ◽  
2021 ◽  
Vol 12 (3) ◽  
pp. 291
Author(s):  
Joanna Beata Kowalska ◽  
Michał Gąsiorek ◽  
Paweł Zadrożny ◽  
Paweł Nicia ◽  
Jarosław Waroszewski

Research highlights: this article refers to the deep storage of trace elements as a result of the podzolization process under different types of vegetation cover. This is also an attempt to trace differentiation in the distribution of trace elements in mountain soils under the podzolization process. Background and objectives: we focused on estimating whether the podzolization process of soils under various vegetation covers led to the deep storage of trace elements in the subsoil. Furthermore, the potential contamination of studied soils with trace elements using pollution indices was assessed. Materials and methods: in thirteen soil profiles under three different vegetation types, chosen chemical–physical properties, e.g., organically bonded and active forms of Al and Fe, podzolization indices, and trace element content (Cd, Pb, Zn, Cu, Cr, and Ni) were analyzed. Additionally, pollution indices, such as Geoaccumulation Index, Potential Ecological Risk, Pollution Load Index, and Contamination Security Index, were calculated. Results: the distribution of Al and Fe varied among the soil profiles, suggesting different rates of podzolization processes that were partially dependent on the type of vegetation. Exceptionally high values of Alo and Feo were noted in profiles P1 and P2 (1.53% and 2.52% for Alo, and 2.13% and 1.46% for Feo, respectively) in horizons Bs and BsC under Plagiothecio-Piceetum taricum. Some of the soils showed the expected distribution of trace elements as the result of the podzolization process revealed their accumulation in the spodic horizon. Moreover, four different patterns of trace element distribution were recognized. Often, the accumulation of trace elements occurred in Bs/BsC horizons, e.g., in case of Zn soils P8, P9, and P10, which reached 65.8, 68.0, and 72.30 mg∙kg−1, respectively. However, there were no large differences in trace element content in soils independent of the vegetation type. The pollution indices in most samples confirmed lack of contamination with trace elements. Only several soil horizons were moderately polluted and showed deterioration of soil quality or very low severity. Conclusions: in the majority of studied soils, the podzolization process resulted in the deep storage of trace elements, i.e., the accumulation of spodic horizon; however, in certain cases, it might have been related only to the different lithology, and appeared as anomalies not related to the dominant soil-forming process. Anomalies were characterized by a much higher content of trace elements in the BsC horizon compared to the upper O horizons. Obtained data of trace elements, as well as values of pollution indices, did not indicate pollution. This lack of pollution was related to localization of soils within a topographic barrier that protected them from the deposition of potential trace element–rich pollution.


2020 ◽  
Vol 166 ◽  
pp. 01005
Author(s):  
Viktoriia Stoliarenko ◽  
Marina Chernova ◽  
Olga Yakovchuk

Control of the trace element content in tap water is particularly important for large industrial regions. The estimation of Cd, Pb, Cu, As, Ni, Zn, Mn, Hg, Se and Co concentration in the tap water of Kryvyi Rih city (Karachuny Reservoir) was accomplished using electrochemical methods, the most popular methods for determining the content of trace elements in natural objects and tap water. A simple and rapid method to determine trace elements in the tap water (Kryvyi Rih city) by inversion-voltammetry has been used. The concentration of trace elements was measured by voltammetricanalyzer AVA-2 device that implements the method of inversion voltammetry on a solid rotating electrode made of carbon material. The monitoring of the trace element content in the water of the Karachuny reservoir was carried out on a monthly basis between September 2018 and August 2019. The article presents the obtained voltamperograms of some trace elements, describes content of the trace element in tap water during the year (12 data for each trace element) and analyzes the compliance of drinking water in the city of Kryvyi Rih to the standards and normative indicators of drinking water quality.


2021 ◽  
pp. 169-190
Author(s):  
David Rickard

The stoichiometry of pyrite in framboids is unknown. The trace element content of framboids has been reported since framboids usually constitute the earliest pyrite phase in a sediment and therefore are more likely to pick up trace element variations in contemporary seawater. The trace element ratios in sedimentary framboids are similar to those in the host shales. Analyses of hydrothermal framboids are fewer, and As, Sb, and Tl appear to be enriched in hydrothermal framboids, with As, Sb, Ni, and Co also being enriched in framboids formed during metamorphism. In contrast with trace element distributions, no spatial variations in sulfur isotopic compositions have been reported within individual framboids. Framboids pick up a more accurate measure of the sulfur isotopic composition of the prevailing dissolved sulfide and are likely to retain this over geologic time. Although it is probable that pyrite framboids collect the local environmental trace element variations, interpretations of the results in terms of paleoenvironmental reconstructions are currently complex. The original sequestration of trace elements is likely to be in part determined by the pyrite crystal chemistry, and there may be a limit to how much of any given trace element can be sequestered by pyrite. This is likely to be enhanced during late diagenesis and early metamorphism and it is not altogether clear how individual trace elements behave over geologic time.


1985 ◽  
Vol 22 (4) ◽  
pp. 626-629 ◽  
Author(s):  
Sanford S. Kaplan ◽  
Jack Donahue ◽  
James D. Carr ◽  
Paul B. Kelter

Trace-element concentrations including Mg, Cr, Mn, Ni, Cu, Zn, Cd, and Pb are reported for six coal beds located in the Cumberland Group (Westphalian B or Lower Pennsylvanian) at the Joggins section, Nova Scotia, Canada. The coal beds were deposited on small flood plains. The higher than usual heavy-metal trace-element concentrations in the coals may have been derived in the exposed Cobequid Massif, located south of the Joggins area.


1975 ◽  
Vol 21 (4) ◽  
pp. 603-612 ◽  
Author(s):  
John P Creason ◽  
Thomas A Hinners ◽  
Joseph E Bumgarner ◽  
Cecil Pinkerton

Abstract Previous studies have revealed that trace element concentrations in hair can reflect exposure in cases of frank poisoning and deficiency. This study reports significant correlations within a single metropolitan area between trace-element content of hair and exposure (as measured by analyses for the corresponding elements in dustfall or housedust) for Ba, Cr, Pb, Hg, Ni, Sn, and V. Age, sex, hair color, and smoking habits were factors included in the statistical evaluation. Several metals increase and decrease together in the hair specimens, in agreement with trends reported for other human tissues.


2021 ◽  
Vol 102 (3) ◽  
pp. 284-292
Author(s):  
T V Nikishova ◽  
I A Kurnikova

Aim. To study the relationship between the trace element status (chromium, zinc and copper) and hormonal activity (insulin, leptin) in women with metabolically healthy and unhealthy obesity phenotypes, depending on the type and severity of obesity. Methods. A cross-sectional study was conducted to compare 288 women with exogenous-constitutional obesity aged 2545 years and healthy women of similar age (n=38). The comparative analysis was carried out in groups of patients with android and gynoid ECO types and varying degrees of obesity. The study was conducted in the NUZ Department Clinical Hospital of the Kazan station of JSC Russian Railways between 2016 and 2020. Along with clinical laboratory tests, the indicators of carbohydrate and lipid metabolism (including the determination of hormones), the activity of enzyme systems and trace element content were determined. The statistical significance of the differences was assessed by using the non-parametric Spearman's rank correlation test. Results. It was revealed that the type of obesity associated with the indicators of lipid and carbohydrate metabolism, the activities of catalase and peroxidase, and trace element content. In patients with abdominal obesity, the concentration of copper was higher than in the comparison group, and chromium and zinc lower than in patients with gynoid obesity and in the control group. In patients with android obesity, a high correlation was found between the serum copper level (r=0.98) and body fat percentage (r=0.74) compared with patients with gynoid type obesity. The correlation of chromium level with the level of blood glucose (r=0.58), triglycerides (r=0.66), cholesterol (r=0.60) and catalase enzyme activity (r=0.54) as well as correlation of zinc level with the level of blood glucose (r=0.74), cholesterol (r=0.77), triglycerides (r=0.90), catalase (r=0.57), and peroxidase (r=0.59) were revealed. Also, significant differences in the level of trace elements in patients with varying degrees of obesity were found. Conclusion. An increase in copper concentration and a decrease in the concentration of chromium and zinc are unfavorable signs in obese patients associated with the activation of oxidative stress, hyperplastic processes and a high risk of developing a metabolic syndrome.


Foods ◽  
2020 ◽  
Vol 9 (12) ◽  
pp. 1868
Author(s):  
Ricardo Prego ◽  
Manuel Vázquez ◽  
Antonio Cobelo-García ◽  
Santiago P. Aubourg

This study analysed the effect of prior high-pressure processing (HPP; 200–600 MPa, 2 min), freezing (−30 °C, 48 h), and frozen storage (−18 °C, 6 months) on the macroelement and trace element content in brine-canned mackerel (Scomber colias). Most elements (Na, Ca, Ba, Mn, Fe, Cu, Cd, Sn, As, S, and Se) showed an increased (p < 0.05) presence in mackerel muscle canned after freezing. A content increase (p < 0.05) was also observed for Na and Sn if prior frozen storage was also applied; on the contrary, Ca, Ba, Mn, Fe, Cd, S, and Se showed a content decrease (p < 0.05) as a result of such storage. Freezing, frozen storage, and canning led to lower values (p < 0.05) in canned fish for K, Mg, Pb, and P. Prior HPP led to relevant content decreases (p < 0.05) for K, Mg, Ca, Ba, Mn, Fe, Pb, and P contents in fish canned after the freezing step; HPP provoked additional decreases (p < 0.05) in Ca, Ba, and Mn levels in samples corresponding to 6-month frozen storage. On the contrary, prior HPP led to marked increases (p < 0.05) for Cd, S, and Se contents in all canned samples. Content changes are explained on the basis of modifications of other constituents and liquor losses from muscle.


1984 ◽  
Vol 49 (1) ◽  
pp. 141-147 ◽  
Author(s):  
Dorothy A. Nelson ◽  
Norman J. Sauer

A prerequisite to dietary reconstruction based on the trace element content of disinterred bone is the evaluation of postdepositional, or diagenetic, changes in the levels of trace elements contained in the bone. This study describes one method of assessing trace element permeation in disinterred bones from the Black Earth site, Illinois. The levels of several trace elements were determined in 50 samples of bone and associated soil. Correlation coefficients were calculated to evaluate the degree to which variation in the bone levels corresponds to variation in the soil levels. The results suggest that no significant postdepositional exchange of Zn and Mn had occurred at the Black Earth site. Other methods of evaluating permeation and leaching are discussed.


Author(s):  
Bogdan NIKOLOV ◽  
Irena GOLUBINOVA ◽  
Plamen MARINOV-SERAFIMOV ◽  
Slaveya PETROVA

Bees and their products occupy an important place in the trophic chain “toxicant-soil-plant-bee-bee product-man”, so it has been suggested that bees and bee products should be considered as not a costly method for monitoring of the environmental pollution. Aim of the present study was to analyse trace element content of polyfloral honey and beeswax, produced in three beehives, situated in the vicinity of non-ferrous metal plant and to assess the hazardous risk at consummation. For the purposes of the study, three beehives in this area have been chosen, as follows: BH1 – located at distance of 3.8 km from the smelter, SW; BH2 – at 4 km distance, NE; BH3 – at 4.6 km distance, SE. Content of Al, Cr, Co, Cu, Fe, Mn, Ni, Pb, Sr and Zn was determined by ICP-MS. Data revealed approximately low content of heavy metals and toxic elements. Beeswax samples were found to contain significantly more Cr, Cu, Fe, Pb and Zn, in comparison with the honey samples (p<0.05). On the basis of the trace elements content in bee products, the hazardous risk at consummation could be arranged in the following descending order: BH2 > BH1 > BH3.


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