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Journal articles on the topic 'Trace elements in water Trace elements in water Organometallic compounds'

Author: Grafiati

Published: 4 June 2021

Last updated: 14 February 2022

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1

Savelyeva, O. L., D. P. Savelyev, and B. G. Palesskii. "THE CARBONACEOUS ROCKS IN CRETACEOUS DEPOSITS OF THE KAMCHATSKY MYS PENINSULA: GEOCHEMISTRY, METAL ACCUMULATION AND SEDIMENTATION CONDITIONS." Tikhookeanskaya Geologiya 40, no. 3 (2021): 41–53. http://dx.doi.org/10.30911/0207-4028-2021-40-3-41-53.

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In the Cretaceous paleoceanic deposits of Eastern Kamchatka, carbonaceous beds have been studied, the origin of which relates to the oceanic anoxic events. In carbonaceous rocks, the contents of trace elements and noble metals: Ba, Cu, Ni, Zn, Mo, V, U, Y, Au, rare-earth elements and platinoids are increased in comparison with the hosted jaspers and limestones. In particular, the Au content in ash-laden carbonaceous rocks reaches 0.8 ppm, and Pt 2.1 ppm. The geochemical proxies Mo/Mn and V/(V + Ni) indicate the accumulation of carbonaceous deposits in euxinic conditions. The significant non-li

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2

Pietrucin, Dorota, and Mariusz Czop. "Modelling of chemical migration under the overlapping impact of multiple and diverse pollution sources in the area of the “Zachem” Chemical Plant (Bydgoszcz, northern Poland)." Bulletin of Geography. Physical Geography Series 9, no. 1 (2015): 31–38. http://dx.doi.org/10.1515/bgeo-2015-0013.

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Abstract Modelling studies of chemical migration in the area of the “Zachem” Chemical Plant in Bydgoszcz started from the analyses of the production profile. These studies were conducted to investigate the potential contamination. Organic compounds still represent a substantial concentration in the soil and water environment, including total organic carbon (TOC) reaching values above 1600 mg/L, aniline, nitrobenzene and phenol (up to 500-800 mg/l), organochloride and organometallic compounds, as well as hydrocarbons, such as benzene, toluene and PAHs. Groundwater contains most of the major ion

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3

Turetta, Clara, Roberta Zangrando, Elena Barbaro, et al. "Water-soluble trace, rare earth elements and organic compounds in Arctic aerosol." Rendiconti Lincei 27, S1 (2016): 95–103. http://dx.doi.org/10.1007/s12210-016-0518-6.

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4

Semenov, M. Yu, V. A. Snytko, Yu M. Semenov, A. V. Silaev, and L. N. Semenova. "Metals composition of the surface waters of the Southern Baikal region and its connection with landscape and geological conditions." Доклады Академии наук 486, no. 5 (2019): 613–19. http://dx.doi.org/10.31857/s0869-56524865613-619.

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The metal composition of water and bottom sediments of southern Lake Baikal tributaries was studied and the water migration coefficients for micro- and trace elements were calculated. The map showing the study area divided into zones according to their ability to provide the certain water quality was drawn. The significant differences in mineralization, macro- and trace element composition between Lake Baikal water and tributary waters were found out. It was shown that values of water migration coefficients calculated for macro elements are similar in southern and main tributaries whereas coef

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5

Wu, Bing, Xuxiang Zhang, Xiaolin Zhang, et al. "Semi-volatile organic compounds and trace elements in the Yangtze River source of drinking water." Ecotoxicology 18, no. 6 (2009): 707–14. http://dx.doi.org/10.1007/s10646-009-0331-4.

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6

Kulikova, M. S., A. V. Shishkin, and A. N. Kulikov. "THE CONTENT OF TRACE ELEMENTS IN THE BLOOD OF CALVES THAT RECEIVED FEED ADDITIVES BASED ON THEIR CHELATED COMPLEX COMPOUNDS AND INORGANIC SALTS." Scientific Notes Kazan Bauman State Academy of Veterinary Medicine 247, no. 3 (2021): 108–12. http://dx.doi.org/10.31588/2413-4201-1883-247-3-108-112.

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We have proposed liquid feed additives, which are solutions of substances that can react with each other to form complex compounds of different composition. The dynamic equilibrium is established in the solution. If the pH changes and one complex compound decomposes, a new one is formed immediately. As a result, the trace element metal ions are chelated at a very wide range of pH values. The effectiveness of the use of solutions of chelated complex compounds and solutions of inorganic salts of copper, zinc, iron, cobalt and manganese was compared. These fluids were administered orally to two e

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7

Timofeeva, Yana, Lyudmila Purtova, Alexey Emelyanov, Maxim Burdukovskii, Irina Kiseleva, and Marina Sidorenko. "Contents, distribution, and fractionation of soil organic carbon and trace elements in soils under a green manure application." Soil and Water Research 16, No. 1 (2020): 50–58. http://dx.doi.org/10.17221/65/2020-swr.

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We quantified the soluble fractions of the soil organic carbon (SOC) concentrations and the total and water-soluble trace elements in soils contaminated by household waste and remediated via the addition of green manure over 13 years and identified the main factors controlling the vertical distribution and accumulation of the trace elements. Green manure favoured the active formation of soil organic matter. The SOC of the examined soils was characterised by the active stabilisation by mineral soil compounds, but by a low degree of humification. The soils showed increased concentrations of Cr a

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8

Takaoka, M., T. Yamamoto, S. Fujiwara, et al. "Chemical states of trace elements in sewage sludge incineration ash by using x-ray absorption fine structure." Water Science and Technology 57, no. 3 (2008): 411–17. http://dx.doi.org/10.2166/wst.2008.025.

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In this study, the chemical states of chromium (Cr), arsenic (As), and selenium (Se) in sewage sludge incineration ash were determined by X-ray absorption fine structure (XAFS) spectroscopy. Sewage sludge incineration ash was sampled from several facilities, and XAFS measurements were carried out with a beam line BL01B1 at the SPring-8 facility. Cr K-edge X-ray absorption near-edge structure (XANES) spectra suggested that Cr compounds were predominantly speciated as Cr(III) and the fraction of Cr(VI) was very minor. Compared to the reference materials, Cr XANES spectra of the incineration ashe

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9

Benincasa, Cinzia, Mariem Gharsallaoui, Enzo Perri, et al. "Quality and Trace Element Profile of Tunisian Olive Oils Obtained from Plants Irrigated with Treated Wastewater." Scientific World Journal 2012 (2012): 1–11. http://dx.doi.org/10.1100/2012/535781.

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In the present work the use of treated wastewater (TWW) to irrigate olive plants was monitored. This type of water is characterized by high salinity and retains a substantial amount of trace elements, organic and metallic compounds that can be transferred into the soil and into the plants and fruits. In order to evaluate the impact of TWW on the overall quality of the oils, the time of contact of the olives with the soil has been taken into account. Multi-element data were obtained using ICP-MS. Nineteen elements (Li, B, Na, Mg, Al, K, Ca, Sc, Cr, Mn, Fe, Co, Ni, Cu, Zn, Sr, Mo, Ba and La) wer

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Cossio, Josiel de Jesus Barrios, Margaret Suárez, Patricia González Hernández, et al. "Assessment of Some Trace Chemical Elements in Cajío Beach Peloid Using Nuclear Analytical Techniques." KnE Engineering 3, no. 3 (2018): 89. http://dx.doi.org/10.18502/keg.v3i3.1609.

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A peloid is a maturated mud or muddy dispersion with healing and/or cosmetic properties, composed of a complex mixture of fine-grained natural materials of geologic and/or biologic origin, mineral water or seawater, and common organic compounds from biological metabolic activity. Cajio beach peloid is a traditional peloid of the south coast of Güira de Melena municipality located in Artemisa province, Cuba. The peloid is a sea mud, used in situ, by the population of the locality. The present study has tree aims: ones is to determine trace chemical elements content (Sc, Cs, La, Ce, Nd, Sm, Eu,

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Zhou, Li Ming, Jian Mei Zhou, Qing Song Li, Hui Guo, and Jun Xiang Chen. "The Recent Advances and Applications of Arsenic Speciation in Water." Advanced Materials Research 955-959 (June 2014): 1384–92. http://dx.doi.org/10.4028/www.scientific.net/amr.955-959.1384.

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Arsenic (As) is well known as a toxic element for human beings. The toxicity, mobility,and bioavailability of As compounds is highly dependent on its chemical forms and oxidation states. Speciation analysis of trace elements is an important issue in biomedical and environmental sciences. For the past few years many studies have been performed to determine As speciation in tap water, food chain and other environmental samples. This review provides the chemical speciation of As in water analysis in recent ten years, including the separation and preconcentration techniques, chromatographic techni

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Farionik, T. V. "Productivity of bumpers for the microelemental correction of their rations." Scientific Messenger of LNU of Veterinary Medicine and Biotechnologies 20, no. 83 (2018): 247–50. http://dx.doi.org/10.15421/nvlvet8348.

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One of the most important factors in the full feeding of animals is the optimal supply of nutrients and biologically active substances, namely, trace elements. Lacking or excessive MI in rations leads to a disturbance of metabolism in the body, inhibits development and growth, reduces productive qualities, and, by reducing immunity, causes various diseases. The final factor is the close interconnection of trace elements with proteins, carbohydrates, fats, which ultimately reflects on the physiological state of a living organism. Soil and climatic conditions of the central region are characteri

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13

Kanellopoulos, C., and P. Mitropoulos. "Geochemical effect of the rock chemistry and the anthropogenic activities on groundwater: The case study of NW Euboea, Greece." Bulletin of the Geological Society of Greece 47, no. 2 (2017): 942. http://dx.doi.org/10.12681/bgsg.11134.

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A geochemical study of NW Euboea island ground waters was undertaken, in order to examine the possible effect of the chemical composition of the country rocks of the area as well as of the anthropogenic activities, to the concentration of environmentally important elements and chemical compounds in the groundwaters. NW Euboea consists of a great variety of rock types showing a wide range in mineralogical and chemical composition. The main groups of rocks occurring in NW Euboea are: i) various types of sedimentary rocks e.g. shale and chert formations, carbonate and clastic rocks, ii) ophioliti

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14

Durin, B., B. Béchet, M. Legret, and P. Le Cloirec. "Role of colloids in heavy metal transfer through a retention-infiltration basin." Water Science and Technology 56, no. 11 (2007): 91–99. http://dx.doi.org/10.2166/wst.2007.762.

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Runoff waters from a main bridge near Nantes (France), surface waters and pore waters in the infiltration basin collecting runoff were analysed after filtration and ultrafiltration to investigate the role of colloids in the transfer of trace metals (Zn, Cu and Pb) from the road to the groundwater. The role of the basin in mitigation of the variations of physico-chemical parameters and chemical elements concentrations was confirmed. An increase of mobile colloidal phase by comparison with runoff and high concentrations of trace metals were observed in pore waters of the sediment. Up to 100% of

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15

Tang, Hui Ru, Zhen Yu Huang, Ming Ke Shen, Zhi Hua Wang, Jun Hu Zhou, and Ke Fa Cen. "Study on the Feasibility of Recycling Condensate Water of Lignite by Microwave Dehydration Treatment." Advanced Materials Research 1010-1012 (August 2014): 990–95. http://dx.doi.org/10.4028/www.scientific.net/amr.1010-1012.990.

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As a low-rank coal, the high moisture content of lignite need to be dehydrated and refined before combustion. To alleviate the water shortage situation of lignite region, this paper put forward a way of microwave dehydration to recycling the water out of lignite. By detecting the chemical oxygen demand, ammonia nitrogen, total phosphorus, hardness, ions, organic compounds of lignite, it can be concluded that the dehydration ratio of lignite reaches 70~80%, and the water quality as ammonia nitrogen, total phosphorus was close to industrial standard. While the chemical oxygen demand exceeded the

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16

Kalmykova, Elena Vladimirovna. "Efficiency of use of microelements in cultivation of sweet pepper during irrigation in the subzone of light chestnut soils of the Volgograd region." Agrarian Scientific Journal, no. 4 (April 22, 2021): 12–16. http://dx.doi.org/10.28983/asj.y2021i4pp12-16.

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The results of studies of scientifically grounded use of microelements in sweet pepper crops, as an important factor in increasing the yield of vegetable crops and improving the quality of products, are presented. The purpose of our research was to substantiate the influence of the use of trace elements in the technology of sweet pepper cultivation on the growth and development of plants, the productivity and quality of the products of this culture. The experimental part of the work was carried out in 2014-2019 in the subzone of light chestnut soils of the Volgograd region. Experiments on the

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17

Oni, S. K., M. N. Futter, K. Bishop, S. J. Köhler, M. Ottosson-Löfvenius, and H. Laudon. "Long-term patterns in dissolved organic carbon, major elements and trace metals in boreal headwater catchments: trends, mechanisms and heterogeneity." Biogeosciences 10, no. 4 (2013): 2315–30. http://dx.doi.org/10.5194/bg-10-2315-2013.

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Abstract. The boreal landscape is a complex, spatio-temporally varying mosaic of forest and mire landscape elements that control surface water hydrology and chemistry. Here, we assess long-term water quality time series from three nested headwater streams draining upland forest (C2), peat/mire (C4) and mixed (C7) (forest and mire) catchments. Acid deposition in this region is low and is further declining. Temporal trends in weather and runoff (1981–2008), dissolved organic carbon concentration [DOC] (1993–2010) and other water quality parameters (1987–2011) were assessed. There was no signific

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18

Bruvo, M., K. Ekstrand, E. Arvin, et al. "Optimal Drinking Water Composition for Caries Control in Populations." Journal of Dental Research 87, no. 4 (2008): 340–43. http://dx.doi.org/10.1177/154405910808700407.

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Apart from the well-documented effect of fluoride in drinking water on dental caries, little is known about other chemical effects. Since other ions in drinking water may also theoretically influence caries, as well as binding of fluoride in the oral environment, we hypothesized that the effect of drinking water on caries may not be limited to fluoride only. Among 22 standard chemical variables, including 15 ions and trace elements as well as gases, organic compounds, and physical measures, iterative search and testing identified that calcium and fluoride together explained 45% of the variatio

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19

Gecheva, Gana, Vesela Yancheva, Iliana Velcheva, et al. "Integrated Monitoring with Moss-Bag and Mussel Transplants in Reservoirs." Water 12, no. 6 (2020): 1800. http://dx.doi.org/10.3390/w12061800.

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For the first time, transplants with moss-bags and mussels together were applied to study the water quality in standing water bodies. The tested species: Fontinalis antipyretica Hedw. and Sinanodonta woodiana (Lea, 1834) were collected from unpolluted sites and analyzed to obtain background levels. Then, the moss and mussels were left in cages for a period of 30 days in three reservoirs where both are not present naturally. Two of the reservoirs suffer from old industrial contamination and one is affected by untreated wastes. Twenty-four compounds were studied, among them trace elements Al, As

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20

Shumigay, I., O. Yermishev, and N. Маnіshеvskа. "Ecological assessment of heavy metal pollution of groundwater in Kyiv region." Agroecological journal, no. 1 (April 6, 2021): 88–97. http://dx.doi.org/10.33730/2077-4893.1.2021.227244.

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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 pr

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21

Popovic, Aleksandar, and Dragana Djordjevic. "Speciation of selected trace and major elements in lignite used in "Nikola Tesla A" power plant (Obrenovac, Serbia)." Journal of the Serbian Chemical Society 70, no. 12 (2005): 1497–513. http://dx.doi.org/10.2298/jsc0512497p.

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Four samples of milled lignite used in the "Nikola Tesla A" power plant located in Obrenovac near Belgrade, were subjected to a five-step sequential extraction, comprising of the following phases: distilled water, 1M ammonium acetate, 0.2M ammonium oxalate/0.2M oxalic acid, acidic solution of H2O2and a 6M solution of HCl. The concentrations of the different elements obtained in the extractions were statistically analyzed. The majority of the examined elements were found to be most probably associated with inorganic fractions of lignite, only aluminum, silicon, chromium and arsenic have a large

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Kumar, Ramesh, and Parimal Pal. "Membrane-integrated hybrid bioremediation of industrial wastewater: a continuous treatment and recycling approach." Journal of Water Reuse and Desalination 3, no. 1 (2013): 26–38. http://dx.doi.org/10.2166/wrd.2013.157.

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A new membrane-integrated hybrid treatment system was investigated to turn highly hazardous coke wastewater reusable. This could protect both air and surface water bodies from toxic contaminants such as ammonia, phenol, cyanide, thiocyanate and other carcinogenic aromatic compounds which are normally released into the environment during discharge of coke wastewater and during quenching of coke by wastewater. Apart from these hazardous substances, oil, grease, other organics and even trace elements could be very effectively removed from wastewater by logical sequencing of chemical, biological a

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Martin, J. M., J. M. Mouchel, and P. Nirel. "Some Recent Developments in the Characterization of Estuarine Particulates." Water Science and Technology 18, no. 4-5 (1986): 83–92. http://dx.doi.org/10.2166/wst.1986.0183.

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Estuaries and coastal zones are characterised by very varied chemical and physical environments. As a result, heterogenous reactions predominate between dissolved and mineral phases, and with the biota. These reactions primarily affect elements and compounds located at the particulate surface. Thus the determination of surface properties of particles is an important key to understanding interactions of trace elements and organic compounds between particulate and dissolved phases in estuarine and coastal systems. Specific surface area (SSA), cationic exchange capacity (CEC) and heat of immersio

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Puzanov, A. V., S. V. Baboshkina, S. Ya Dvurechenskaya, and T. A. Rozhdestvenskaya. "IMPACT OF THE BIOGEOCHEMICAL SITUATION AT CATCHMENTS ON THE MICROELEMENT COMPOSITION OF LAKE TELETSKOYE TRIBUTARIES’ WATERS." Water and Ecology 25, no. 3 (2020): 70–78. http://dx.doi.org/10.23968/2305-3488.2020.25.3.70-78.

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Introduction. The formation of the microelement composition of surface waters in reservoirs and watercourses is determined by the biogeochemical processes in the catchment area. However, the schemes and mechanisms of interaction between watercourses and the soils drained by them have been studied insufficiently. Lake Teletskoye is the largest water reservoir of Altai, one of the deepest lakes in Russia, and its catchment area is 90 times larger than the area of the lake itself. Methods. We collected water samples in Lake Teletskoye tributaries during the summer low water period, in the estuari

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Polidori, A., K. L. Cheung, M. Arhami, R. J. Delfino, J. J. Schauer, and C. Sioutas. "Relationships between size-fractionated indoor and outdoor trace elements at four retirement communities in southern California." Atmospheric Chemistry and Physics 9, no. 14 (2009): 4521–36. http://dx.doi.org/10.5194/acp-9-4521-2009.

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Abstract. Indoor and outdoor water soluble trace elements (TEs) were analyzed on quasi-ultrafine (UF), accumulation, and coarse PM filter samples collected at four retirement communities, three located in the San Gabriel Valley and one in Riverside, CA. Our analysis indicates that a complex mix of vehicular, industrial, and soil-related emissions was responsible for the elemental concentrations measured at the three San Gabriel sites, while regional transport, soil re-suspension and, to a lower degree, local traffic contributed to TE levels observed in Riverside. In the quasi-UF mode, the magn

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Polidori, A., K. L. Cheung, M. Arhami, R. J. Delfino, J. J. Schauer, and C. Sioutas. "Relationships between size-fractionated indoor and outdoor trace elements at four retirement communities in Southern California." Atmospheric Chemistry and Physics Discussions 9, no. 1 (2009): 4931–69. http://dx.doi.org/10.5194/acpd-9-4931-2009.

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Abstract. Indoor and outdoor water soluble trace elements (TEs) were analyzed on quasi-ultrafine (UF), accumulation, and coarse PM filter samples collected at four retirement communities, three located in the San Gabriel Valley and one in Riverside, CA. Our analysis indicates that a complex mix of vehicular, industrial, and soil-related emissions was responsible for the elemental concentrations measured at the three San Gabriel sites, while regional transport, soil re-suspension and, to a lower degree, local traffic contributed to TE levels observed in Riverside. In the quasi-UF mode, the magn

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27

Alsaggaf, Wejdan T. "The Chemistry of Paper in Paper Spray Ionization Mass Spectrometry." International Journal of Chemistry 12, no. 1 (2019): 16. http://dx.doi.org/10.5539/ijc.v12n1p16.

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There are many rapidly evolving technologies that use simple papers as a surface for chemical reactions and detection of molecules. One example of this application is the use of paper as a surface for ionization and introduction of compounds into mass spectrometry. The current work was designed to investigate mechanisms of interaction between the paper and analytes using mass spectrometry as the detection instrument. Standard compounds with different sizes were used in this study. Factors investigated include the effects of the paper geometry (5 mm) and position (tp=90&ordm;) were found to

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28

Farionik, T. V. "Use in the form of mixed complex of copper." Scientific Messenger of LNU of Veterinary Medicine and Biotechnologies 20, no. 92 (2018): 64–67. http://dx.doi.org/10.32718/nvlvet9213.

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In the complete feeding of animals, including pigs, an important role is given to mineral elements, because they take an active part in the metabolism, provide normal conditions for the work of all internal organs, muscles and nervous system. Mineral elements are used by the body of animals as a structural material, they participate in the enzymatic processes of digestion, absorption, synthesis, decomposition, as well as the allocation of metabolic products from the body. Minerals have a positive effect on the activity of enzymes, hormones, vitamins, stabilize acid-alkaline balance and osmotic

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Fortuniak, Anna, Krzysztof HaŁas, MichaŁ GÓrecki, Krzysztof Szewczyk, Angelika Wojtania, and Maciej ZiuŁkiewicz. "Lifting of biogenic compounds by a riverbed from a municipal drainage basin on a day scale." E3S Web of Conferences 44 (2018): 00042. http://dx.doi.org/10.1051/e3sconf/20184400042.

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Urban river is the object of very dynamic hydrochemical changes. It was decided to trace the variability of physicochemical elements within 24-hour. One of the rivers in ŁÓdŹ – Olechówka – was selected for research, where, having knowledge from previous research, two measurement-control points were established: first located in the middle course of the river (on its quasi-natural fragment), second at its mouth to the recipient. Between these points, the Olechówka River catchment gains significantly on urbanization. A measurement series during 24-hour was carried out at each of the points, duri

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Divya, B. J., B. Suman, M. Venkataswamy, and K. Thyagaraju. "A STUDY ON PHYTOCHEMICALS, FUNCTIONAL GROUPS AND MINERAL COMPOSITION OF ALLIUM SATIVUM (GARLIC) CLOVES." International Journal of Current Pharmaceutical Research 9, no. 3 (2017): 42. http://dx.doi.org/10.22159/ijcpr.2017.v9i3.18888.

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Objective: The present study on garlic cloves (Allium sativum) belongs to family Amaryllidaceae has been focused. This is a natural medicinal plant used for disease preventions against all kinds of internal infections. Preliminary screening of phytochemicals has found plenty of secondary metabolites which are present in garlic cloves. Their functional groups and mineral compositions, the potential of trace elements have been evaluated using FTIR and inductively coupled plasma optical emission spectrometry (ICPOES).Methods: The screening of phytochemicals, FTIR and ICPOES. All the methods were

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Nasyrova, Zukhra R., Galina P. Kayukova, Alexey V. Vakhin, Richard Djimasbe, and Artem E. Chemodanov. "Heavy Oil Hydrocarbons and Kerogen Destruction of Carbonate–Siliceous Domanic Shale Rock in Sub- and Supercritical Water." Processes 8, no. 7 (2020): 800. http://dx.doi.org/10.3390/pr8070800.

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This paper discusses the results of the influences of subcritical (T = 320 °C; P = 17 MPa) and supercritical water (T = 374 °C; P = 24.6 MPa) on the yield and composition of oil hydrocarbons generated from carbonaceous–siliceous Domanic shale rocks with total organic content (Corg) of 7.07%. It was revealed that the treatment of the given shale rock in sub- and supercritical water environments resulted in the decrease of oil content due to the intensive gas formation. The content of light hydrocarbon fractions (saturated and aromatic hydrocarbons) increased at 320 °C from 33.98 to 39.63%, whil

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DU, JIANGMIN, YANDE ZHAO, QINGCHUN WANG, et al. "Geochemical characteristics and resource potential analysis of Chang 7 organic-rich black shale in the Ordos Basin." Geological Magazine 156, no. 07 (2018): 1131–40. http://dx.doi.org/10.1017/s0016756818000444.

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AbstractThe Ordos Basin is the largest and most important intracontinental sedimentary depression in China, and a significant amount of crude oil resources has developed within this Mesozoic formation. High-grade organic-rich shale is prevalent in the large-scale areas of the Chang 7 sedimentary stage and provides essential hydrocarbon resources for abundant oil enrichment in the Mesozoic. This research investigated the geochemical characteristics of Chang 7 shale using core samples and well logs and via laboratory tests. In addition, the microscopic components of the shale organic matter (OM)

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Yelikbayev, B. K., Marcela C. Pagano, and G. A. Jamalova. "HYPERACCUMULATOR PLANTS FOR PHYTOREMEDIATION OF SOIL CONTAMINATED WITH HEAVY METALS." BULLETIN 5, no. 387 (2020): 34–40. http://dx.doi.org/10.32014/2020.2518-1467.140.

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Environmental pollution, including pollution of urban soils by heavy metals causes serious environmental concern around the world. Heavy metals accumulate relatively quickly in soil but their removal rate is very slow. Hyperaccumulator plants help cleanse the environment from heavy metals. Phytoremediation is cleansing of soils contaminated with heavy metals, using plants that accumulate significant amounts of metals. An important environmental problem in large industrial cities is pollution by toxic compounds, including heavy metals. Due to the potential toxicity and high resistance of metals

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Xu, Yun, Handong Liang, and Ning Zhang. "Mineralogical characteristics and sources of alkali metals in the No. 6 coal seam from the Fukang mining area of the Zhunnan coalfield, Xinjiang province, Northwest China." Energy Exploration & Exploitation 37, no. 3 (2019): 1162–81. http://dx.doi.org/10.1177/0144598719832716.

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Minerals in coal are of great significance in determining coal properties, washing, combustion, gasification, and liquefaction. The content of alkali metals in coal is an important factor determining corrosion and/or erosion in combustion boilers. Eleven coal samples were taken from the No. 6 coal seam of the Fukang mining area, Zhunnan coalfield, Xinjiang province, China. X-ray fluorescence, inductively coupled plasma-mass spectrometry, low-temperature ashing-X-ray diffraction, and electron probe microanalyzer were used for analyzing the minerals, major elements, and trace elements of the coa

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Mahurpawar, Manju. "EFFECTS OF HEAVY METALS ON HUMAN HEALTHEFFECTS OF HEAVY METALS ON HUMAN HEALTH." International Journal of Research -GRANTHAALAYAH 3, no. 9SE (2015): 1–7. http://dx.doi.org/10.29121/granthaalayah.v3.i9se.2015.3282.

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Some heavy metals have bio-importance as trace elements but the biotoxic effects of many of them in human biochemistry are of great concern. Hence, there is a need for proper understanding of mechanism involved, such as the concentrations and oxidation states, which make them harmful. It is also important to know their sources, leaching processes, chemical conversions and their modes of deposition in polluting the environment, which essentially supports life. Literature sources point to the fact that these metals are released into the environment by both natural and anthropogenic means, especi

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Hamadamin, Rawaz Rostam, Maamun Qadir Salih, and Rostam Salam Aziz. "Environmental Impacts of Oil Field on Mammals, Using Vital Trace Elements as Contamination Indicator in Sheep and Cow meat Shewashok Oil Field as the Case Study." UHD Journal of Science and Technology 3, no. 1 (2019): 1. http://dx.doi.org/10.21928/uhdjst.v3n1y2019.pp1-8.

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Air, water and food are the basic needs of most of the living organism to survive. The quality of consumed water, air and food may transfer to the consumers. Ambient environment is built base on interaction of living and non-living organism, chemical and physical compounds, thus oil field emissions, effluents and its general waste can involve. Because of gas flaring in oilfield toxic gases and particles are realised into the atmosphere. Quite possibly the particles contain heavy metals because they are driven from hydrocarbon, and this air is breathing and respiring by the surround living orga

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Soares, Cristina, Jaroslava Švarc-Gajić, Maria Teresa Oliva-Teles, et al. "Mineral Composition of Subcritical Water Extracts of Saccorhiza Polyschides, a Brown Seaweed Used as Fertilizer in the North of Portugal." Journal of Marine Science and Engineering 8, no. 4 (2020): 244. http://dx.doi.org/10.3390/jmse8040244.

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The present work aimed at studying Saccorhiza polyschides extracts obtained by subcritical water extraction as a potential source of essential macro and trace elements, aiming for its potential application as a biofertilizer. The mineral composition, as well as sulfate, chlorine and iodine, total organic matter, and total nitrogen content, were determined on the extracts obtained from seaweeds harvested during low tide at the northern Portuguese coast. The selected parameters are important for a biofertilizer. Among the macronutrients, the most abundant was K (15.7 ± 0.2 g/L), followed by Na (

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QUTLIMUROTOVA, Nigora, Salohiddin MAHMADOLIEV, Zulayho SMANOVA, Zuhra YAKHSHIYEVA, and Zhasur TURSUNKULOV. "AMPEROMETRIC DETERMINATION OF CERIUM (III) USING 2,7-DINITROZO-1,8- DIHYDROXYNAPHTHALENE-3,6-DISULFONIC ACID SOLUTION." Periódico Tchê Química 17, no. 36 (2020): 735–49. http://dx.doi.org/10.52571/ptq.v17.n36.2020.750_periodico36_pgs_735_749.pdf.

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Cerium and its compounds are widely used in the production of electronic devices and semiconductors, which is why these substances will enter the environment more often in the future. There is a need for effective express methods that can determine the trace amounts of cerium and other rare earth elements with high accuracy to control and study the possible negative impact of cerium compounds on the ecosystems. The objective of this research paper was to elaborate on an express method capable of producing accurate and reliable results on the content of cerium in wastewaters in the presence of

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Renno, Nilton O., Erik Fischer, Germán Martínez, and Jennifer Hanley. "Complex Brines and Their Implications for Habitability." Life 11, no. 8 (2021): 847. http://dx.doi.org/10.3390/life11080847.

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There is evidence that life on Earth originated in cold saline waters around scorching hydrothermal vents, and that similar conditions might exist or have existed on Mars, Europa, Ganymede, Enceladus, and other worlds. Could potentially habitable complex brines with extremely low freezing temperatures exist in the shallow subsurface of these frigid worlds? Earth, Mars, and carbonaceous chondrites have similar bulk elemental abundances, but while the Earth is depleted in the most volatile elements, the Icy Worlds of the outer solar system are expected to be rich in them. The cooling of ionic so

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Barbaro, E., R. Zangrando, T. Kirchgeorg, et al. "An integrated study of the chemical composition of Antarctic aerosol to investigate natural and anthropogenic sources." Environmental Chemistry 13, no. 5 (2016): 867. http://dx.doi.org/10.1071/en16056.

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Environmental contextOwing to its remoteness, Antarctica is an excellent natural laboratory for conducting studies on the behavior of marine aerosols and for monitoring the impact of global human activities. The aim of this study is to provide an extensive chemical characterization of Antarctic aerosol and to investigate its sources. A distinction among anthropogenic, crustal, and biogenic sources was defined using several chemical markers. AbstractDuring the 2010–11 austral summer, an aerosol sampling campaign was carried out at a coastal Antarctic site (Terra Nova Bay, Victoria Land). In thi

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Studer, M. S., R. T. W. Siegwolf, M. Leuenberger, and S. Abiven. "Multi-isotope labelling (<sup>13</sup>C, <sup>18</sup>O, <sup>2</sup>H) of fresh assimilates to trace organic matter dynamics in the plant-soil system." Biogeosciences Discussions 11, no. 11 (2014): 15911–43. http://dx.doi.org/10.5194/bgd-11-15911-2014.

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Abstract. Isotope labelling is a powerful tool to study elemental cycling within terrestrial ecosystems. Here we describe a new multi-isotope technique to label organic matter (OM). We exposed poplars (Populus deltoides x nigra) for 14 days to an atmosphere enriched in 13CO2 and depleted in 2H218O. After one week, the water-soluble leaf OM (δ13C = 1346 ± 162‰) and the leaf water were strongly labelled (δ18O = −63± 8‰, δ2H = −156 ± 15‰). The leaf water isotopic composition was between the atmospheric and stem water, indicating a considerable diffusion of vapour into the leaves (58–69%). The ato

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Vamvuka, Despina, Stelios Alexandrakis, George Alevizos, and Antonios Stratakis. "Recycling of Waste Materials for Stabilizing Ash from Co-Combustion of Municipal Solid Wastes with an Olive By-Product: Soil Leaching Experiments." Soil Systems 4, no. 2 (2020): 34. http://dx.doi.org/10.3390/soilsystems4020034.

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In the context of the current environmental policies of the European Union promoting the recycling and reuse of waste materials, this work aimed at investigating the environmental impact of ashes produced from the co-combustion of municipal solid wastes with olive kernel in a fixed bed unit. Lignite fly ash, silica fume, wheat straw ash, meat and bone meal biochar, and mixtures of them were used as stabilizing ash materials. All solids were characterized by physical, chemical and mineralogical analyses. Column leaching tests of unstabilized and stabilized ash through a quarzitic soil were cond

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Larsen, Torben, Erika Skoglund, Ann-Sofie Sandberg, and Ricarda M. Engberg. "Soaking and pelleting of pig diets alters the apparent absorption and retention of minerals." Canadian Journal of Animal Science 79, no. 4 (1999): 477–83. http://dx.doi.org/10.4141/a99-022.

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The effect of soaking a pig's diet in water (9 h at room temperature) or heat pelleting (81 °C) on apparent absorption and retention of intrinsic minerals was studied with and without the addition of calcium carbonate in a 2 × 3 factorial design. Thirty pigs were allocated to different diet treatments and two separate balances were calculated throughout a 33-d study. Soaking the diet significantly (P < 0.001) reduced the phytate content (IP6) and increased (P < 0.001) the fractional content of degradation products (IP3-5), whereas heat pelleting only marginally affected these compounds.

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Kurtzman, D., L. Netzer, N. Weisbrod, A. Nasser, E. R. Graber, and D. Ronen. "Characterization of deep aquifer dynamics using principal component analysis of sequential multilevel data." Hydrology and Earth System Sciences 16, no. 3 (2012): 761–71. http://dx.doi.org/10.5194/hess-16-761-2012.

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Abstract. Two sequential multilevel profiles were obtained in an observation well opened to a 130-m thick, unconfined, contaminated aquifer in Tel Aviv, Israel. While the general profile characteristics of major ions, trace elements, and volatile organic compounds were maintained in the two sampling campaigns conducted 295 days apart, the vertical locations of high concentration gradients were shifted between the two profiles. Principal component analysis (PCA) of the chemical variables resulted in a first principal component which was responsible for ∼60% of the variability, and was highly co

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Roques, Jonathan A. C., Federico Micolucci, Suguru Hosokawa, Kristina Sundell, and Tomonori Kindaichi. "Effects of Recirculating Aquaculture System Wastewater on Anammox Performance and Community Structure." Processes 9, no. 7 (2021): 1183. http://dx.doi.org/10.3390/pr9071183.

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Recirculating aquaculture systems (RAS) are good candidates for the sustainable development of the aquaculture sector. A current limitation of RAS is the production and accumulation of nitrogenous waste, which could affect fish health. We investigated the potential of the anaerobic ammonia oxidation (anammox) process to treat marine wastewater from a cold-water RAS. We show that the marine anammox bacteria Candidatus Scalindua is a promising candidate. However, its activity was affected by unknown compounds in the RAS wastewater and/or the sub-optimum of essential trace elements (TEs). Anammox

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Kurtzman, D., L. Netzer, N. Weisbrod, A. Nasser, E. R. Graber, and D. Ronen. "Characterization of deep aquifer dynamics using principle component analysis of sequential multilevel data." Hydrology and Earth System Sciences Discussions 8, no. 5 (2011): 9481–503. http://dx.doi.org/10.5194/hessd-8-9481-2011.

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Abstract. Two sequential multilevel profiles were obtained in an observation well opened to a 130 m thick, unconfined, contaminated aquifer, in Tel Aviv, Israel. While the general profile characteristics of major ions, trace elements, and Volatile Organic Compounds (VOC) were maintained in the two sampling campaigns conducted 295 days apart, the vertical locations of high concentration gradients were shifted between the two profiles. Principle Component Analysis (PCA) of the chemical variables resulted in a first Principal Component (PC) which was responsible for ∼60% of the variability, and w

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Danert, Fátima C., Catiana Zampini, Roxana Ordoñez, Luis Maldonado, Enrique Bedascarrasbure, and María Inés Isla. "Nutritional and Functional Properties of Aqueous and Hydroalcoholic Extracts from Argentinean Propolis." Natural Product Communications 9, no. 2 (2014): 1934578X1400900. http://dx.doi.org/10.1177/1934578x1400900209.

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Bee propolis is a natural product extensively used as an ingredient in functional foods in amounts that may confer health benefits. The aim of this study was to investigate the nutritional and functional properties (antioxidant activity) of aqueous and ethanolic extracts of propolis samples from Santiago del Estero province, northern Argentina. All propolis extracts contained macronutrients (glucose, fructose, sucrose and proteins), micronutrients (Na, K, Ca, P and Mg) and trace elements (Fe). Spectrophotometric, TLC and HPLC-DAD analyses showed the presence of several phenolic, flavonoid and

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Pasakarnis, Timothy, Michael L. McCormick, Gene F. Parkin, Aaron Thompson, and Michelle M. Scherer. "FeIIaq–FeIIIoxide electron transfer and Fe exchange: effect of organic carbon." Environmental Chemistry 12, no. 1 (2015): 52. http://dx.doi.org/10.1071/en14035.

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Environmental context Concerns about carbon-driven climate change make it critical to better understand how carbon interacts with soils. We examined whether carbon compounds commonly found in soils affect the behaviour of soil iron minerals, and found that iron minerals remain dynamic and mix with the surrounding water, despite the presence of carbon in the water. Our findings suggest that both carbon and trace elements in the minerals may be more mobile and less stable than we previously thought. Abstract The close association of organic carbon and Fe oxides has been recognised for decades an

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Saarikoski, S., S. Carbone, M. J. Cubison, et al. "Evaluation of the performance of a particle concentrator for on-line instrumentation." Atmospheric Measurement Techniques Discussions 7, no. 3 (2014): 2737–81. http://dx.doi.org/10.5194/amtd-7-2737-2014.

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Abstract. The performance of the miniature Versatile Aerosol Concentration Enrichment System (m-VACES, Geller et al., 2005) was investigated in laboratory and field studies using on-line instruments. Laboratory tests focused on the behavior of monodisperse ammonium sulfate (AS) or dioctyl sebacate (DOS) particles in the m-VACES measured with the Aerodynamic Particle Sizer (APS) and Scanning Mobility Particle Sizer (SMPS). The ambient measurements were conducted at an urban site in Helsinki, Finland, where the operation of the m-VACES was explored in conjunction with a Soot Particle Aerosol Mas

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Dychok-Nedzelska, A. Z., Ya V. Lesyk, and I. I. Kovalchuk. "The effect of sulfur compounds on the content of microelements in tissue organism rabbits." Scientific Messenger of LNU of Veterinary Medicine and Biotechnologies 21, no. 95 (2019): 161–65. http://dx.doi.org/10.32718/nvlvet9530.

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The aim of the study was to investigate the effect of nanotechnology and sodium sulfate on the content of mineral elements in the tissues of 110-day-old rabbits by feeding different amounts of nano sulfur citrate. Studies were conducted on young rabbits of the Hyla breed in the private sector. Rabbits for the study were selected at the age of 41 days on the principle of analogues, weighing 1.2–1.4 kg, were divided into six groups (control and five experimental), 6 animals (3 males and 3 females) in each. Animals were kept in rooms with adjustable microclimate and illumination in mesh cages mea

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