Showing papers on "Trace metal published in 2021"
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30 Jun 2021
TL;DR: In this paper, Tsadilas, E Tsantila, S Stamatiadis, V Antoniadis and V Samaras, and J Sgouras have discussed the effect of fly ash application on heavy metal forms and their availability.
Abstract: BIOAVAILABILITY Coal Fly Ash Application to Soils and its Effect on Boron Availability to Plants, T Matsi and CD Tsadilas Bioavailability of Trace Elements in Relation to Root Modification in the Rhizosphere, IK Mitsios and NG Danalatos Availability of Heavy Metals Applied to Soil through Sewage Sludge, V Antoniadis, CD Tsadilas, V Samaras, and J Sgouras Influence of Fly Ash Application on Heavy Metal Forms and Their Availability, CD Tsadilas, E Tsantila, S Stamatiadis, V Antoniadis, and V Samaras Arsenic Concentration and Bioavailability in Soils as a Function of Soil Properties: A Florida Case Study, D Sarkar and R Datta BIOGEOCHEMISTRY Solubility, Mobility, and Bioaccumulation of Trace Elements: Abiotic Processes in the Rhizosphere, B Robinson, N Bolan, S Mahimairaja, and B Clothier Appraisal of Fluoride Contamination of Groundwater through Multivariate Analysis: Case Study, S Tripathy, MK Panigrahi, and N Kundu Geochemical Processes Governing Trace Elements in CBNG-Produced Water, KJ Reddy, QD Skinner, and BH Hulin Temporal Trends of Inorganic Elements in Kentucky Lake Sediments, BG Loganathan, C Alexander, I-L Chien, and KS Sajwan Chemical Association of Trace Elements in Soils Amended with Biosolids: Comparison of Two Biosolids, KS Sajwan, S Paramasivam, AK Alva, and J Afolabi BIOTECHNOLOGY Microbial Genomics as an Integrated Tool for Developing Biosensors for Toxic Trace Elements in the Environment, R Chakraborty and P Roy Arbuscular Mycorrhizal Fungi and Heavy Metals: Tolerance Mechanisms and Potential Use in Bioremediation, M del Carmen Angeles Gonzalez Chavez, J, Vangronsveld, J, Colpaert, and C, Leyval Role of Arbuscular Mycorrhiza and Associated Microorganisms in Phytoremediation of Heavy Metal-Polluted Sites, K Turnau, A Jurkiewicz, G Lingua, JM Barea, and V Gianinazzi-Pearson Plant Metallothionein Genes and Genetic Engineering for the Cleanup of Toxic Trace Elements, MNV Prasad "Metallomics" - a Multidisciplinary Metal-Assisted Functional Biogeochemistry: Scope and Limitations, MNV Prasad Detoxification/Defense Mechanisms in Metal-Exposed Plants, BP Shaw, MNV Prasad, VK Jha, and BB Sahu Bacterial Biosorption of Trace Elements, K-W Kim and S-Y Kang Electroremediation of Heavy Metal-Contaminated Soils -Processes and Applications, AB Ribeiro and JM Rodriguez-Maroto Application of Novel Nanoporous Sorbents for the Removal of Heavy Metals, Metalloids, and Radionuclides, SV Mattigod, GE Fryxell, KE Parker, and Y Lin BIOREMEDIATION Phytoremediation Technologies Using Trees, ID Pulford and NM Dickinson Stabilization, Remediation, and Integrated Management of Metal-Contaminated Ecosystems by Grasses (Poaceae), MNV Prasad Physiology of Lead Accumulation and Tolerance in a Lead-Accumulating Plant (Sesbania drummondii), N Sharma and S Sahi Temperate Weeds in Russia: Sentinels for Monitoring Trace Element Pollution and Possible Application in Phytoremediation, DI Bashmakov, AS Lukatkin, and MNV Prasad Biogeochemical Cycling of Trace Elements by Aquatic and Wetland Plants: Relevance to Phytoremediation, MNV Prasad, Maria Greger, and P Aravind Metal-Tolerant Plants: Biodiversity Prospecting for Phytoremediation Technology, MNV Prasad and H Freitas Trace Elements in Plants and Soils of Abandoned Mines in Portugal: Significance for Phytomanagement and Biogeochemical Prospecting, MNV Prasad, J Pratas, and H Freitas Plants That Accumulate and/or Exclude Toxic Trace Elements, MNV Prasad Phytoremediation of Trace Element Contaminated Soil with Cereal Crops: Role of Fertilizers and Bacteria on Bioavailability, I Shtangeeva Phytomanagement of Radioactively Contaminated Sites, H Vandenhove Cadmium and Zinc Phytoextraction by Willows: Efficiency and Limitations, C Keller RISK ASSESSMENT Risk Assessment, Pathways, and Trace Element Toxicity of Sewage Sludge-Amended Agroforestry and Soils, K Chandra Sekhar and MNV Prasad Trophic Transfer of Trace Elements and Associated Human Health Effects, A Love and CR Babu Trace Metal Accumulation, Movement, and Remediation in Soils Receiving Animal Manure, KR Sistani and JM Novak
127 citations
TL;DR: The Amaranth green proteins not only effectively block lignin to release active cellulases for the mostly enhanced biomass hydrolyzes, but also efficiently involve in multiple chemical bindings with Cd, which should address critical issues of high-costly biomass waste utilization and low-efficient trace metal remediation.
48 citations
TL;DR: Overall, compared to agricultural ponds and coastal regions, sediments in river, swamp and man-made reservoir systems contained relatively fewer metal pollutants, the former two serving as collection points for metal-laden fertilizers and chemicals.
36 citations
TL;DR: In this article, it has been identified that different toxic metals are associated with the MPs in compost, i.e. Cr, Pb, Cu and Ni; however, no considerable attention is given to the study of their concentrations, translocation, and fate.
31 citations
TL;DR: The results indicated that application of multivariate statistics, pollution, ecological and health indices together provide valuable knowledge for assessing soil pollution in a particular region.
27 citations
TL;DR: Zebrafish was used as a biological model to study pollution of Le'an River, and it was shown that midstream and downstream sections of the river were seriously polluted by trace metals.
25 citations
TL;DR: Wang et al. as discussed by the authors investigated the concentrations of 15 trace metals and metalloids in surface water, sediments, and C. plicata organs (foot, gill, mantle and visceral mass) and quantified the bioaccumulation and human health risk of these trace metals in specimens collected from Dongting Lake.
Abstract: Trace metal contamination in water and bioaccumulation in aquatic organisms are human health risks of increasing concern. However, the bioaccumulation of trace metals in the organs of the mussel Cristaria plicata in Dongting Lake, China and the human health risks of mussel consumption are largely unknown. We investigated the concentrations of 15 trace metals and metalloids in surface water, sediments, and C. plicata organs (foot, gill, mantle, and visceral mass) and quantified the bioaccumulation and human health risk of these trace metals in specimens collected from Dongting Lake. The concentrations of most metals in surface water exceeded previously published background values. In contrast, the concentrations of most metals in sediments showed a decreasing trend. Overall, the metal concentrations in the gill and visceral masses of C. plicata were higher than those in the foot and mantle, and higher bioaccumulation capacities were observed for essential metals than for nonessential metals. The mean concentrations of the trace elements Zn, Pb, Cd, As, Cu, and Cr in C. plicata foot samples were lower than the threshold values established by international and Chinese organizations. The estimated daily intake (EDI) values of the essential metal Mn in C. plicata foot was higher than the recommended tolerable daily intake (TDI) values for juveniles. Only Mn for juveniles and As for both juveniles and adults may pose noncarcinogenic health risks through foot consumption. The hazard index (HI) values for adults and juveniles were higher than 1, suggesting significant risks of noncarcinogenic effects to humans by exposure to multiple metals.
24 citations
TL;DR: In this article, the levels of ten TMs (Fe, Al, Cd, Ni, Cu, Zn, Pb, As, Mn and Cr) in water samples taken monthly from 8 stations along the Karasu River between January 2019 and December 2019 were measured and compared with water quality guidelines.
23 citations
TL;DR: In this article, the trace metal concentrations of soils were determined in macroaggregates at the “mm scale” sampled from apple orchards, and the modified BCR sequential extraction method was used to determine four operationally defined geochemical trace metal fractions in soil samples.
Abstract: Agrochemicals containing trace metals such as pesticides and fertilizer are intensively used in apple production systems in many countries. There is a risk of accumulation of trace metals, particularly in the sensitive root rhizosphere area. In this study, the trace metal concentrations of soils were determined in macroaggregates at the “mm scale” sampled from apple orchards. Soil samples were taken from five different locations at 0–20 cm soil depths in an apple orchard. Pseudo-total trace metal (Cd, Cr, Cu, Ni, Pb, and Zn) concentrations of soil samples separated from the surface and core sections of the soil aggregate were determined by digestion with Aqua regia. The modified BCR sequential extraction method was used to determine four operationally defined geochemical trace metal fractions in soil samples. The pseudo-total concentrations of Cd and Cu were significantly higher, and Zn was lower at the surface than in the core sections (paired-t test, p
23 citations
TL;DR: In this article, the amount of trace metal elements (TMe) in the phosphate rock wastes resulting from the processing of phosphate run-of-mine was analyzed. But the results showed that the analysed wastes are P-enriched (P2O5 = 20% - 27% -27% %) together with similar mineralogy such as natural phosphorites (carbonate fluor-apatite), but they displayed an enhancement in matrix phases.
23 citations
TL;DR: In this article, the ability of pre-production microplastic pellets to accumulate metals from the marine environment was investigated, showing that microplastics act as nucleation points and carriers of trace metal ions in marine environments.
TL;DR: The accumulation of Cd and Pb had higher values of HRI than 1 and these values suggested that these metals had probability to cause health problems.
TL;DR: Sequential extraction results showed that during the transformation of schwertmannite to goethite, most trace metals decreased their mobility by decreasing their exchangeable fraction, however, only Pb increased its mobility during transformation.
TL;DR: Impacts of FSS on streamwater chemistry across five urban watersheds in the Baltimore-Washington, USA metropolitan region are analyzed, showing co-mobilization of metals and base cations was strongest during peak snow events but could continue over 24 h after SC peaked, suggesting ongoing cation exchange in soils and stream sediments.
Abstract: Increasing trends in base cations, pH, and salinity of freshwaters have been documented in U.S. streams over 50 years. These patterns, collectively known as Freshwater Salinization Syndrome (FSS), are driven by multiple processes, including applications of road salt and human-accelerated weathering of impervious surfaces, reductions in acid rain, and other anthropogenic legacies of change. FSS mobilizes chemical cocktails of distinct elemental mixtures via ion exchange, and other biogeochemical processes. We analyzed impacts of FSS on streamwater chemistry across five urban watersheds in the Baltimore-Washington, USA metropolitan region. Through combined grab-sampling and high-frequency monitoring by USGS sensors, regression relationships were developed among specific conductance and major ion and trace metal concentrations. These linear relationships were statistically significant in most of the urban streams (e.g., R2 = 0.62 and 0.43 for Mn and Cu, respectively), and showed that specific conductance could be used as a proxy to predict concentrations of major ions and trace metals. Major ions and trace metals analyzed via linear regression and principal component analysis (PCA) showed co-mobilization (i.e., correlations among combinations of specific conductance, Mn, Cu, Sr2+, and all base cations during certain times of year and hydrologic conditions). Co-mobilization of metals and base cations was strongest during peak snow events but could continue over 24 hours after specific conductance peaked, suggesting ongoing cation exchange in soils and stream sediments. Mn and Cu concentrations predicted from specific conductance as a proxy indicated acceptable goodness of fit for predicted vs. observed values (Nash-Sutcliffe Efficiency > 0.28). Metals concentrations remained elevated for days after specific conductance decreased following snowstorms, suggesting lag times and continued mobilization after road salt use. High-frequency sensor monitoring and proxies associated with FSS may help better predict contaminant pulses and contaminant exceedances in response to salinization and impacts on aquatic life, infrastructure, and drinking water.
TL;DR: In this paper, the authors present recent advances in the design of sensor, type of transducer and sensing elements for the detection of trace metals, including optical, chemical, electrochemical and field effect transistor sensors.
TL;DR: In this article, the trace metal content (Al, Cd, Cr, Cu, Fe, Mn, Ni, Pb and Zn) of two sessile crustaceans, 20 Mytilus galloprovincialis (mussel) and 20 Tapes decussatus (clam), were analyzed.
TL;DR: Ecological indexes values have revealed a low to moderate elemental pollution of sediment and fish samples in the north part of the Persian Gulf.
Abstract: The concentration of 19 metal and non-metal elements in two fishes (Liza subviridis and Sphyraena jello) and associated sediment–seawater from the northern part of the Persian Gulf was measured. The samples were gathered from two industrial ports, one commercial port, and one residential port. The metal accumulation in the muscle and liver of fishes was evaluated. Nickel (mean 362.07–712.83 μg/g) and chromium (mean 470.00–691.47 μg/g) in sediment and zinc (mean 9.01–31.15 μg/L) and arsenic (mean 18.22–22.14 μg/L) in seawater had the most abundancy among studied elements. The accumulation of elements in S. jello (a pelagic species) was higher than L. subviridis (a demersal species). For both species, major elements of S and Mg and trace elements of Fe, Al, Si, Zn, and Cu showed highest accumulation. Also, fish samples from Emam Hassan Port were more contaminated than other stations. Ecological indexes values have revealed a low to moderate elemental pollution of sediment and fish samples in the north part of the Persian Gulf.
TL;DR: In this paper, the transfer of trace metals through trophic pathways is considered as a series of linked compartments (soil-plant-arthropod herbivore-ARthropod predator), where the authors consider the mechanisms by which trace metals are taken up by organisms, the forms and transformations that can occur within the organism and the consequences for trace metal availability to the next level.
TL;DR: This study confirmed the decreasing trend historically observed for particulate metals along the Scheldt, as well as the rising concentrations recorded for dissolved trace metals which might also lead to an increase of their labile fraction measured by the DGT.
TL;DR: In this paper, the effects of Cd, Cr and Pb urban concentrations were tested in hydroponics on three annual plants, Cardamine hirsuta L., Poa annua L. and Stellaria media (L.) Vill., commonly growing in cities.
Abstract: Hormesis is a dose-response phenomenon observed in numerous living organisms, caused by low levels of a large number of stressors, among which metal ions. In cities, metal levels are usually below toxicity limits for most plant species, however, it is of primary importance to understand whether urban metal pollution can threaten plant survival, or, conversely, be beneficial by triggering hormesis. The effects of Cd, Cr and Pb urban concentrations were tested in hydroponics on three annual plants, Cardamine hirsuta L., Poa annua L. and Stellaria media (L.) Vill., commonly growing in cities. Results highlighted for the first time that average urban trace metal concentrations do not hinder plant growth but cause instead hormesis, leading to a considerable increase in plant performance (e.g., two to five-fold higher shoot biomass with Cd and Cr). The present findings, show that city habitats are more suitable for plants than previously assumed, and that what is generally considered to be detrimental to plants, such as trace metals, could instead be exactly the plus factor allowing urban plants to thrive.
TL;DR: In this paper, the authors studied thaw lakes of the NE European permafrost peatlands - shallow water bodies located within frozen peat bogs and receiving the majority of their water input from lateral (surface) runoff.
21 Mar 2021
TL;DR: Wang et al. as discussed by the authors assessed the contamination of six trace metals (Cd, Cr, Cu, Ni, Pb, and Zn) in mountain soils across China and deciphered the potential drivers of their spatial distribution.
Abstract: Trace metal contamination in soils is a threat with an uncertain limit to maintain planet safety, and the issue of trace metal contamination in mountain soils is still of low concerned. In this study, we assessed the contamination of six trace metals (Cd, Cr, Cu, Ni, Pb, and Zn) in mountain soils across China and deciphered the potential drivers of their spatial distribution. The results showed that concentrations of Cd and Pb decreased significantly with soil depth, and their concentrations were markedly higher in northwest, south, and southwest China than elsewhere. Among the metals, Cd was the priority for control with moderate to heavy contamination, followed by Pb, whereas the other metals did not show evident contamination. The altitudinal pattern and isotopic tracing revealed that the significant enrichment and marked contamination of Cd and Pb in surface soils were primarily attributed to deposition through long-range transboundary atmospheric transport and condensation. Ore mining, nonferrous smelting, and coal and fuel combustion were identified as primary anthropogenic sources of the Cd and Pb. Soil organic matter content, pH, and soil forming processes directly determined the accumulation of trace metals in the soils, and orographic effects, including local climate, vegetation composition, and canopy filtering, regulated the spatial distribution of the metals. This study highlights the significance of soil Cd contamination in mountains, which are considered of low concern, and suggests that long-term monitoring of trace metal contamination is necessary to improve biogeochemical models that evaluate the responses of the mountain critical zone to future human- and climate-induced environmental changes.
TL;DR: In this article, a combination work of field sampling analysis and experiments to link concentration patterns of another redox-sensitive trace metal, tungsten (W), to molybdenum (Mo) was presented to track changes in sulfidic conditions in ancient aquatic environments.
TL;DR: In this article, the authors compared the uptake, accumulation, and translocation properties of seedlings with different initial trace metal contents, and found that the Suncont seedlings presented better properties and adaptability for phytoremediation purposes.
TL;DR: Results suggested that demersal fishes inhabiting near the sediments and piscivorous fishes with higher trophic level were likely to accumulate higher trace metal concentrations, and reduced intake of carnivorous fishes should be promoted as part of a healthier diet.
Abstract: This study aims to assess the degree of metal contamination (mercury (Hg), cadmium (Cd), and lead (Pb)) in the muscles of five species of fish Esox lucius, Sander lucioperca, Micropterus salmoides, Lepomis macrochirus, and Scardinius erythrophthalmus, from the Mechraâ-Hammadi Dam between July 2017 and May 2018, and to conduct a risk assessment for human consumers. Trace metals were determined by Graphite Furnace Atomic Absorption Spectrometry for the Pb and the Cd and by Cold Vapor Atomic Absorption Spectrometry for the Hg. The results gotten from the study of the muscles of the different fish species show that the higher mean amounts of Cd and Hg were determined in E. lucius, and the maximum mean levels of Pb were detected in S. erythrophthalmus. Results suggested that demersal fishes inhabiting near the sediments and piscivorous fishes with higher trophic level were likely to accumulate higher trace metal concentrations. The general order of bioaccumulation of the trace metals measured in the muscles of the fish species is as follows: Hg > Pb > Cd. Therefore, the bioaccumulation of Hg in fish studied is more important than that of Cd and Pb. Furthermore, these concentrations are higher in summer than in winter for all trace metals. All the values of the trace metals in the muscle tissues are below the maximum limits recommended by the European Community (EC) N° 1881/2006. However, estimation of noncarcinogenic health risks by the target hazard quotient indicated no obvious noncarcinogenic risks to humans that consume those fishes (THQ < 1). Results of THQ and maximum safe consumption indicated that Hg may cause more harm to human by fish consumption especially for E. lucius and S. lucioperca. Therefore, reduced intake of carnivorous fishes should be promoted as part of a healthier diet.
TL;DR: Zhang et al. as mentioned in this paper evaluated and compared the enrichment factor of trace metals in street dust in four different zones of the urban area of Nanchang city during different seasons, and found that the EF values of Zn, Cd, Pb and Pb show very similar variations as their median and mean values of EF are higher in certain zones and their seasonal variations are similar.
TL;DR: Investigating the trace metal-absorbing capacity of three different life-history stages of Ruppia sinensis provides information relating to the strategies evolved by R. sinensis to absorb and isolate trace elements, and highlights the phytoremediation potential of this species.
TL;DR: In this article, the storage and transport pathways of 16 elements, classified as macro-nutrients (Ca, Mg, Na, K), micro-nutrient (Fe, Mn, Ni, Co, Cu, Cr, Zn, Mo), and potential toxicants (Al, Cd, Sn, Pb) in the world's largest mangroves, the Sundarbans, were addressed.
TL;DR: It is found that uninfected fish had statistically higher concentrations of metals than infected ones, and in those who are infected, the size of the parasitic infrapopulations correlated negatively with the concentrations of trace metals obtained in the hosts tissues, that is, the concentrations in fish showed a tendency to decrease as the parasiticinfrapopulation increased, or vice versa.
TL;DR: In this article, the chemical composition of pine needles was determined to monitor environmental contamination in an urban forest environment in the most industrialized part of southern Poland, based on the assumption that element concentrations in tree foliage represent element availability in the environment.
Abstract: We determined the chemical composition of pine needles to monitor environmental contamination in an urban forest environment in the most industrialized part of southern Poland. The concentrations of radiocarbon (14C), trace elements (Cr, Co, Ni, Cu, Zn, Rb, Sr, Ba, Ce, Pb) and the Pb isotope composition were measured in needles from Pinus sylvestris L. growing in nine urban forests near five factories. The investigated young pine needles were collected in January 2013 and September 2013, respectively. 14C concentration was determined by liquid scintillation counter, trace elemental concentration and Pb isotope ratio were determined by ICP-MS and MC-ICP-MS, respectively. Analysis of trace metal pollution is based on the assumption that element concentrations in tree foliage represent element availability in the environment. Different space-time patterns of element accumulation in pine needles were observed. The variation in isotopic composition reflects a mix between different anthropogenic sources.