scholarly journals Influence of cultivar on the content of selected minerals in red beet roots (Beta vulgaris L.)

2016 ◽  
Vol 28 (2) ◽  
pp. 143-150 ◽  
Author(s):  
Zofia Nizioł-Łukaszewska ◽  
Maria Gawęda
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Metal Content ◽  
The Other ◽  
Red Beet ◽  
Lower Ability ◽  
Growing Conditions ◽  
Set Up ◽  
The University ◽  
The Impact

Abstract Beetroot is a vegetable that accumulate heavy metals. This is largely dependent on the cultivar, methods and growing conditions. The aim of the study was to determine the composition of elements in the roots of 15 cultivars of red beet. The analysis assessed the content of macroelements (Na, P) and heavy metals (Cd, Cr, Mn, Zn). Most soils of the Lesser Poland region are exposed to the impact of industrial and transportation pollution. The soils of this region are characterized by strong acidification as well as natural or increased heavy metal content. The experiment was set up at the experimental field of the Department of Vegetable and Medicinal Plants of the University of Agriculture in Krakow, in 2009-2010. On the basis of the performed analysis, ‘Opolski’ was chosen as the cultivar that was characterized by a high content of macroelements and lower ability to accumulate heavy metals than the other tested cultivars. The lowest ability to accumulate heavy metals (Cd and Cr) was found in the cases of cultivars with cylindrical root shapes, such as Rywal or Opolski. One can indicate such cultivars as Astar F1 or Nabab F1 as cultivars recommended for cultivation in ecologically threatened areas.

scholarly journals The influence of soil microorganisms on heavy metal content in the substrate of waste rock dumps

2021 ◽  
Vol 31 ◽  
pp. 00017
Author(s):  
Natalia Makeeva ◽  
Olga Neverova
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Metal Content ◽  
Soil Microorganisms ◽  
Accumulation Rate ◽  
Heavy Metal Content ◽  
Waste Rock ◽  
Soil Reclamation ◽  
The Impact ◽  
Concentration Limits

The environmental effects of mining and its impact on natural resources are of a holistic nature. One of the modern methods employed for the remediation of technogenically disturbed soils is the application of microorganisms. This paper studies the impact made by soil microorganisms on the accumulation rate of heavy metals in the substrate of waste rock dumps in the process of soil reclamation. Suspensions of soil microorganisms (microorganisms utilising mineral nitrogen forms / MUMN; microorganisms decomposing silicates / MDS; microscopic fungi / MF) were applied to the rock dump surface. Separate groups as well as their combinations were applied. The heavy metal content analysis did not indicate a significant exceedance of the maximum allowable concentration limits (MACL) in the soil of the waste rock. The only metal whose content exceeded the maximum admissible concentration limits was nickel. It has found that the application of microorganisms influences the concentration of several heavy metals due to pH level changes of the rock dump soil.

scholarly journals The impact of the nutritional supplement “ERAMIN” on the heavy metal content in meat and offals

2019 ◽  
Vol 95 (2) ◽  
pp. 199-202
Author(s):  
V. M. Poznyakovskiy ◽  
Sergey L. Tikhonov ◽  
N. V. Tikhonova
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Metal Content ◽  
Nickel Content ◽  
Nutritional Supplement ◽  
Longissimus Dorsi ◽  
Control Group ◽  
Slaughter Cattle ◽  
Cadmium And Lead ◽  
The Impact

There was performed an experimental study on the reduction of heavy metals in meat and products of slaughter cattle. For the experiment, according to the principle of analogues there were formed two groups of 15 Hereford calves each: 1 - control, 2 - experimental. Calves from the second group, in addition to the basic diet from the age of 3 months received dietary supplement "Eramin" in a dose of 50 mg/kg of body weight for 10 days every 3 months throughout the period of growing and fattening. In that the content of heavy metals in the meat of calves is established to fail to exceed the MPC. The amount of copper, iron and nickel in the control group exceeded average by 93,2 and 77,8%, respectively. The nickel content in muscle longissimus dorsi of the control group is 0,046 mg/kg, which is 5,6 times above the average. Against the background of the use of "Eramin" in the ration of calves in meat there was shown a significant (P ≤ 0,05) decrease in iron, cadmium and lead 12,0; 9,8 and 11,4%, respectively.

scholarly journals Correlation between Selenium and Heavy Metal Content in Camellia oleifera in Hainan, China

2015 ◽  
Vol 9 (1) ◽  
pp. 170-177 ◽  
Author(s):  
Jun Yuan ◽  
Deyi Yuan ◽  
Xiaofeng Tan ◽  
Feng Zou ◽  
Shixin Xiao
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Food Production ◽  
Metal Content ◽  
The Other ◽  
Hainan Province ◽  
Camellia Oleifera ◽  
Average Content ◽  
Soil Environment ◽  
Green Food

Eighteen forests of Camellia oleifera in Hainan province, China were selected to measure the contents of selenium (Se), zinc (Zn), mercury (Hg), cadmium (Cd), chromium (Cr), lead (Pd) and arsenic (As) in soils, roots, leaves, and kernels, and analyze the correlation between the soil content and the corresponding content in the plant. It was found that the content of Se in soils ranged between 0.489 and 2.110 mg/kg, and was higher than 1.0 mg/kg in 10 out of 18 forests. The average content of six heavy metals was low and fulfilled the requirements of soil environment for green-food production, except that the contents of Cr, Pb, and Cd exceeded standards in few regions. The content of Se in Camellia oleifera was relatively low. Only five regions showed detectable levels of Se in kernels, with the highest in Fuwen Town of Dingan county of 0.085 mg/kg. The contents of Zn, Cr, Pb, Cd, As, and Hg in roots of Camellia oleifera were higher than in the leaves and kernels. The contents of Zn, Cr, and Pb were higher than that of Cd, As, and Hg. The As content in soil was in significant correlation with that in the roots of Camellia oleifera. The Pd content in the soil was positively correlated with that of the roots of Camellia oleifera. The Cr, Pd and Cd contents in roots were in positive correlation with that in the leaves significantly. However, the Hg content of the roots was positively correlated with that of the kernels. Furthermore, the Se content in roots of Camellia oleifera was negatively associated with that of the other six heavy metals, having a significantly negative correlation between Se and As.

scholarly journals Impact of Selected Heavy Metal (Cd, Pb, Cu and Zn) Concentration on Histological Changes of 2 Species of Estuarine Catfish (Small, Medium and Large Size) Arius thalassinus and Plotosus Anguillaris

2021 ◽  
Vol 23 (3) ◽  
Author(s):  
Ahmed. A ◽  
◽  
Ismail. A ◽  
Omar. H ◽  
Zulkifli. S ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Tissue Damage ◽  
Metal Content ◽  
Permissible Limit ◽  
Histopathological Changes ◽  
Vacuolar Degeneration ◽  
Histological Changes ◽  
Vast Number ◽  
The Impact

Aquatic systems are exposed to a vast number of pollutants that are mainly contained in effluents discharged from industries, sewage treatment plants, and drainage from urban and agricultural areas. This study was conducted to establish baseline information of selected heavy metals (Pb, Cd, Zn, and Cu) in the sediment of two rivers (Kuala Gula and Sepang) and histopathological changes using catfish species (Arius thalassinus and Plotosusanguillaris) as an animal bioindicator. Heavy metals concentration was determined by using atomic absorption spectrophotometer (AAS). The histological changes in gills and liver were detected microscopically and evaluated with criteria of scoring in each organ with emphasis on the histological alterations in these organs. The results showed the highest values of metals concentration were in large fish of Arius thalassinus and lowest concentration while in smallPlotosusanguillaris. Tissues damage is also more obvious in larger fish than smaller fish. Concentrations of Cu in the fish gills and livers were below the maximum permissible limit, however, Zn, Pb and Cd exceeded the permissible limit with means metal concentrations in the livers of two species catfish (μg/g-1d.w.). Livers were higher than the gills with metal concentration of Arius thalassinus Zn (233.8) >Pb (63.1)> Cu (12.5) μg/g-1 d.w. Cd (1.35). However, gills register lowest of accumulations these metals in Plotosusanguillaris with means Zn (94.5) > Pb (16.3) >Cu (7.3) > Cd (0.93) μg/g-1 d.w. respectively in small catfish. Several histopathological alterations, tissue damage was more prominent in fishes with the highest heavy metal content where tissue damage was more obvious in larger fish than smaller fish. Tissue damage in the liver is more prominent than in the gill. Damages observed includes increasing monomicrophages cells, vacuolar degeneration and necrosis of the liver, proliferation in the epithelium of gill filaments and fusion of secondary lamellae, severe degenerative and necrosis in the studied tissues of both fish as a result of the accumulated metals. This Study concluded that histopathological changes could be used as a good biomarker for pollution. Higher metal content in fish is coincides with severe tissue damage in larger fish. Hence histopathology can be used as a tool to indicate the impact of heavy metal in fish.

scholarly journals Heavy-Metal Contents and the Impact of Roasting on Polyphenols, Caffeine, and Acrylamide in Specialty Coffee Beans

Foods ◽  
2021 ◽  
Vol 10 (6) ◽  
pp. 1310
Author(s):  
Matúš Várady ◽  
Sylwester Ślusarczyk ◽  
Jana Boržíkova ◽  
Katarína Hanková ◽  
Michaela Vieriková ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Dry Matter ◽  
Green Beans ◽  
Caffeoylquinic Acids ◽  
Coffee Beans ◽  
Metal Contents ◽  
Specialty Coffee ◽  
Quantitative Analyses ◽  
The Impact

The aim of this study was to determine the effect of roasting on the contents of polyphenols (PPH), acrylamide (AA), and caffeine (CAF) and to analyze heavy metals in specialty coffee beans from Colombia (COL) and Nicaragua (NIC). Samples of NIC were naturally processed and COL was fermented anaerobically. Green beans from COL (COL-GR) and NIC (NIC-GR) were roasted at two levels, light roasting (COL-LIGHT and NIC-LIGHT) and darker roasting (COL-DARK and NIC-DARK), at final temperatures of 210 °C (10 min) and 215 °C (12 min), respectively. Quantitative analyses of PPH identified caffeoylquinic acids (CQA), feruloylquinic acids, and dicaffeoylquinic acids. Isomer 5-CQA was present at the highest levels and reached 60.8 and 57.7% in COL-GR and NIC-GR, 23.4 and 29.3% in COL-LIGHT and NIC-LIGHT, and 18 and 24.2% in COL-DARK and NIC-DARK, respectively, of the total PPH. The total PPH contents were highest in COL-GR (59.76 mg/g dry matter, DM). Roasting affected the contents of PPH, CAF, and AA (p < 0.001, p < 0.011 and p < 0.001, respectively). Nickel and cadmium contents were significantly higher in the COL-GR than in the NIC-GR beans. Darker roasting decreased AA content, but light roasting maintained similar amounts of CAF and total PPH.

Anxiety of High School Students Preparing for University during the COVID-19 Pandemic

2021 ◽  
Vol 8 (12) ◽  
pp. 374-377
Author(s):  
Prapattra Hongwisat ◽  
Thanawat Wuthikanokkan ◽  
Nathakan Preechakansakul
Keyword(s):  
High School ◽  
High School Students ◽  
Respiratory Symptoms ◽  
The Other ◽  
Depression And Anxiety ◽  
School Students ◽  
Other Hand ◽  
The University ◽  
The Impact ◽  
Online Form

Covid-19 are one of the viruses that were widely spreaded in 2019 and are still separate until nowadays. Thailand is one of the countries that are highly infected. The majority of people who are infected with this virus tend to have mild to severe respiratory symptoms. Furthermore, anyone can get sick, and it can lead to death. However, the most common symptoms of this virus are fever, cough, tiredness, and loss of taste or smell, on the other hand, characteristics in a minority of people, such as diarrhea and headaches. Due to the impact of the Covid-19 virus, people have to change their lifestyle to the online form. These changes have impacted mostly on economics and education in particular countries, so this problem also affects anxiety among high school students; who must prepare to apply to the university during the COVID-19 outbreak. In addition, we have collected 151 answers from high school students by surveying in order to know the feelings for entrance to the university during the pandemic situation. We found out that 81.3% of the students are highly affected by covid, and only 0.7% of students are slightly affected. We also found out that 55% of the students are worried about university entrance, and only 2.6% of the students were not worried at all. According to the result, most of the students in Thailand are facing the problem about their education and their entrance for the university which are caused by Covid-19. This may lead to illnesses like depression and anxiety. Keywords: Students, Learning, COVID-19, Thailand, University.

scholarly journals Physico-chemical variability and heavy metal pollution of surface sediment in a non-channeled section of Dilúvio Stream (Southern Brazil) and the influence of channeled section in sediment pollution

2019 ◽  
Vol 14 (1) ◽  
pp. 1 ◽  
Author(s):  
Pedro Alexandre Sodrzeieski ◽  
Leonardo Capeleto de Andrade ◽  
Tales Tiecher ◽  
Flávio Anastácio de Oliveira Camargo
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Total Concentration ◽  
Mineralogical Composition ◽  
Sediment Pollution ◽  
Anthropogenic Influence ◽  
Southern Brazil ◽  
Physico Chemical ◽  
Chemical Variability ◽  
The Impact

Dilúvio Stream flows through an area with a great population density in Porto Alegre, Southern Brazil. The anthropogenic influence in the surroundings impacted negatively the quality of the sediments of Dilúvio Stream and Lake Guaíba. This study evaluated the physico-chemical variability of surface sediments in a non-channeled section of Dilúvio Stream. Additionally, we compared the concentration of several heavy metals in this section with data from previous studies in the margins of Lake Guaíba near the outflow of Dilúvio Stream in order to evaluate the impact of urbanization on sediment pollution. The pH, bulk density, particle-size distribution, electrical conductivity, organic carbon, assimilable phosphorus, total nitrogen, mineralogical composition (X-ray diffractogram) and pseudo total concentration of several metals (Fe, Al, Ca, Mg, Na, K, Mn, Ba, Zn, V, As, Pb, Cu, Cr, Co, Ni, Cd, Mo, and Se) were evaluated. The results showed that the sediments in the non-channeled section of Dilúvio Stream are predominantly sandy, with heavy metal contents below the quality reference values. Quartz and feldspar predominated in all sites. The concentration of Zn, Pb, Cu, Cr, and Ni were lower than that observed in the margins of Lake Guaíba near the outflow of Dilúvio Stream, possibly due to pollution input throughout the channeled section. The Dilúvio Stream shows indications of an anthropogenic influence in the heavy metals concentration through the channeled area.

scholarly journals A New Ex Vivo Model to Evaluate the Hair Protective Effect of a Biomimetic Exopolysaccharide against Water Pollution

Cosmetics ◽  
2020 ◽  
Vol 7 (4) ◽  
pp. 78
Author(s):  
Claire Tubia ◽  
Alfonso Fernández-Botello ◽  
Jan Dupont ◽  
Eni Gómez ◽  
Jérôme Desroches ◽  
...  
Keyword(s):  
Water Pollution ◽  
Heavy Metals ◽  
Heavy Metal ◽  
Adverse Effects ◽  
Inductively Coupled Plasma ◽  
Ex Vivo ◽  
Polluted Water ◽  
Ex Vivo Model ◽  
Fiber Damage ◽  
The Impact

As an external appendage, hair is exposed to multiple stresses of different origins such as particles and gases in air, or heavy metals and chemicals in water. So far, little research has addressed the impact of water pollution on hair. The present study describes a new ex vivo model that allowed us to document the adverse effects of water pollutants on the structure of hair proteins, as well as the protective potential of active cosmetic ingredients derived from a biomimetic exopolysaccharide (EPS). The impact of water pollution was evaluated on hair from a Caucasian donor repeatedly immersed in heavy metal-containing water. Heavy metal retention in and on hair was then quantified using Inductively Coupled Plasma Spectrometry (ICP/MS). The adverse effects of heavy metals on the internal structure of hair and its prevention by the EPS were assessed through measurement of keratin birefringence. Notably, the method allows the monitoring of the organization of keratin fibers and therefore the initial change on it in order to modulate the global damage in the hair. Results revealed an increasing amount of lead, cadmium and copper, following multiple exposures to polluted water. In parallel, the structure of keratin was also altered with exposures. However, heavy metal-induced keratin fiber damage could be prevented in the presence of the tested EPS, avoiding more drastic hair problems, such as lack of shine, or decrease in strength, due to damage accumulation.

scholarly journals Studi Penurunan Kadar Logam Besi (Fe) dan Logam Tembaga (Cu) pada Air Embung Menggunakan Adsorben Nanosilika

2017 ◽  
Vol 17 (2) ◽  
pp. 131
Author(s):  
Emas Agus Prastyo Wibowo ◽  
Ika Sri Hardyanti ◽  
Isni Nurani ◽  
Dyan Septyaningsih Hardjono HP ◽  
Aden Dhana Rizkita
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Atomic Absorption ◽  
Water Use ◽  
Metal Content ◽  
Atomic Absorption Spectrophotometer ◽  
Absorption Method ◽  
Wastewater Purification ◽  
Stirring Time ◽  
Independent Variable

STUDI PENURUNAN KADAR LOGAM BESI (Fe) DAN LOGAM TEMBAGA (Cu) PADA AIR EMBUNG MENGGUNAKAN ADSORBEN NANOSILIKAABSTRAKPolusi limbah logam berat dalam air merupakan satu permasalahan lingkungan yang penting. Dalam mengatasi permasalahan tersebut dapat dilakukan purifikasi terhadap air tersebut. Metode yang dapat digunakan untuk purifikasi limbah sangat beragam salah satunya adalah absorpsi. Secara umum metode absorpsi telah banyak digunakan dalam purifikasi air limbah. Metode absorpsi dapat menurunkan kadar logam yang terlarut pada limbah. cair dengan cara menyerap logam-logam tersebut ke dalam permukaan absorbennya. Tujuan dilakukan penelitian ini adalah  untuk menurunkan konsentrasi logam besi (Fe) dan tembaga (Cu) menggunakan adsorben nanosilika. Penelitian ini menggunakan variabel bebas yaitu waktu pengadukan (20 menit, 40 menit, dan 60 menit). Hasil akhir filtrat air embung kemudian diukur absorbansinya menggunakan Spektrofotometer Serapan Atom. Berdasarkan hasil analisa menggunakan instrumen SSA diperoleh hasil bahwa tidak terjadi penurunan logam Fe maupun Cu. Dalam hal ini terjadi peningkatan konsentrasi dalam logam Fe maupun Cu, hal ini dikarenakan kurangnya waktu pengadukan dan pengaruh dari adsorben nanosilika.Kata Kunci: limbah, logam berat, nanosilika STUDY OF DECREASING METALS IRON (Fe) AND COPPER (Cu) ON EMBUNG WATER USE OF NANOSILICA ADSORBEN ABSTRACTHeavy waste pollution of heavy metals in the water is an important environment issue. To solve the problem, its can be purified the water. The methods that can be used for waste purification are very diverse, one of which is absorption. In general, the method of absorption has been widely used in wastewater purification. The absorption method can decrease dissolved metal content in the waste. liquid by absorbing the metals into the absorbent surface. Research has been conducted to reduce the concentration of iron (Fe) and copper (Cu) by using nanosilica adsorbent. This research used to independent variable that is stirring time (20 minutes, 40 minutes, and 60 minutes). The final result of filtrate embung water then measured its absorbance using Atomic Absorption Spectrophotometer (AAS). Based on the result of the analysis using SSA instrument, it is found that there is no decrease of Fe and Cu metals. There are several reasons for those problem such as due to lack of stirring time and the influence of nanosilica adsorbent.Keywords: Waste pollution, heavy metal, nanosilica

scholarly journals Impact Imposed by Urbanization on Soil Heavy Metal Content of Lake Wetland and Evaluation of Ecological Risks in East Dongting Lake in China

2021 ◽  
Author(s):  
Yang Lin ◽  
Kai Luo ◽  
Zilin Su ◽  
Yang Wu ◽  
Wei Xiao ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Land Use ◽  
Metal Content ◽  
Agricultural Land ◽  
Research Area ◽  
Dongting Lake ◽  
Heavy Metal Content ◽  
Ecological Risks ◽  
Positive Correlation

Abstract The urbanization is regarded as the major factor related to human activities that may interfere with the natural ecosystem. In this study, we have selected the wetland of East Dongting Lake as the research area. We have collected 180 soil samples (within the range of 0–20 cm, and 20cm-40cm), and we have measured the contents of their physicochemical properties (including salinity, pH value, soil particle composition, soil organic carbon, nitrate nitrogen and rapidly available phosphorus) as well as heavy metal elements (including As, Hg, Cd, Pb, Ni and Cr). We have adopted the methods of multivariate statistical analysis and inverse distance weighted (IDW) interpolation, so as to to reveal the sources and distribution characteristics of heavy metal content in soil in the research area. By adopting the potential ecological risk index (PERI) method proposed by Hakanson, we intend to assess the PERI values of heavy metals. Our research findings have shown that: (1) 8 sorts of heavy metals have shown positive correlation with each other. As, Hg and Zn have shown a significantly positive correlation with SOC (P < 0.01); As, Ni, Cr and Zn have shown a significantly positive correlation with AP (P < 0.01); As and Pb have shown a significantly positive correlation with Clay (P < 0.01); whereas Hg and Zn have shown a significantly negative correlation with Silt (P < 0.01); As and Pb have shown a significantly negative correlation with Sand (P < 0.01). (2) During urbanization, the elements of Cd, Ni, As, Hg and Pb might be enriched due to agricultural and industrial activities, whereas the use of fertilizers and pesticides constitute one of the major factors contributing to the increase of Cd and Pb contents in soil. (3) Influenced by the varying land patterns and with exception to Cu, the Fe-normalized concentrations have shown significant variations among different types of land use (P < 0.05). Specifically, there is a significantly higher level of Cd, Zn, Pb and Hg contents in the agricultural land than other types of land use, whereas there is a slightly higher level of heavy metal content in the mudflats than that in the grassland. In addition, the content of heavy metals in woodland remains relatively stable, and with exception to As, the content of heavy metals in woodland is the lowest among the five types of land. (4) The average value of the comprehensive PERI in heavy metals amounts to 555.03, representing a strong degree of ecological risks. Specifically, the proportion of sampling points of Cd that have a high level of ecological risks amounts to 36.51%, which is the primary element contributing to heavy metal pollution in the region, especially in the agricultural land.

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