scholarly journals The impact of increased flooding occurrence on the mobility of potentially toxic elements in floodplain soil – A review

2021 ◽  
Vol 754 ◽  
pp. 142040
Author(s):  
Jessica Ponting ◽  
Thomas J. Kelly ◽  
Anne Verhoef ◽  
Michael J. Watts ◽  
Tom Sizmur
Keyword(s):  
Toxic Elements ◽  
Potentially Toxic Elements ◽  
Floodplain Soil ◽  
The Impact

scholarly journals The impact of various grape stock cultivars on the As, Cu, Co and Zn content of the grape berry (must, seed)

2013 ◽  
pp. 39-44
Author(s):  
István Fekete ◽  
Nándor Rakonczás ◽  
Dávid Andrási ◽  
Éva Bódi ◽  
Szilárd Szilágyi ◽  
...  
Keyword(s):  
Toxic Elements ◽  
Grape Berry ◽  
Potentially Toxic Elements ◽  
Grape Berries ◽  
Zn Content ◽  
Abnormal Increase ◽  
Set Up ◽  
Arsenic Copper ◽  
The Impact ◽  
Cu And Zn

Scientific research from the last decades showed that the inappropriate industrial and agricultural production caused an abnormal increase of the potentially toxic elements in the soil. Unfortunately the acidification of the soil is an increasing problem in Hungary. According to Várallyay et al. (2008) 13% of the Hungarian soils are highly acid. Accumulation of toxic elements differs in the genetically diverse plant species. The root of the plant constitutes a filter so that the rootstock is also kind of a filter system, which may prevent that the scion part (such as berry) accumulate high levels of various potentially toxic elements from the soil. The aim of research was to determine how different grape rootstocks influence the As, Co, Cu and Zn content of the musts and seeds. Thus, specifying which of the grape rootstocks takes up the lowest level of these 4 elements (As, Co, Cu and Zn), and accumulates in berries, so could reduce the potentially toxic element load of the grape berries. The grape rootstock collection of the University of Debrecen was set up in 2003 in 3x1 m spacing on immune sandy soil. Grafting of ‘Cserszegi fűszeres’ was started in 2010. We could evaluate yields harvested from 12 rootstock varieties of the experiment in October 2011. We obtained valuable differences in the arsenic, copper, cobalt and zinc concentrations of musts and seeds of ‘Cserszegi fűszeres’ grafted into different rootstocks. The results obtained from the 2011 harvest support the statement that the choice of rootstock might be an important factor to increase food safety. The differences in concentration of the four elements observed in case of the rootstock may have been caused on one hand by the rootstock effect, and on the other hand, the vintage effect has a very significant impact on the vines element uptake. Several years of experimental results will be needed to answer these questions.

Enhancing phytoextraction of potentially toxic elements in a polluted floodplain soil using sulfur-impregnated organoclay

2019 ◽  
Vol 248 ◽  
pp. 1059-1066 ◽  
Author(s):  
Sabry M. Shaheen ◽  
Jianxu Wang ◽  
Ann-Christin Swertz ◽  
Xinbin Feng ◽  
Nanthi Bolan ◽  
...  
Keyword(s):  
Toxic Elements ◽  
Potentially Toxic Elements ◽  
Floodplain Soil

scholarly journals Human-Induced Enrichment of Potentially Toxic Elements in a Sediment Core of Lake Balkhash, the Largest Lake in Central Asia

2020 ◽  
Vol 12 (11) ◽  
pp. 4717 ◽  
Author(s):  
Kun Huang ◽  
Long Ma ◽  
Jilili Abuduwaili ◽  
Wen Liu ◽  
Gulnura Issanova ◽  
...  
Keyword(s):  
Central Asia ◽  
Sediment Core ◽  
Human Activities ◽  
Toxic Elements ◽  
Potentially Toxic Elements ◽  
Dominant Factor ◽  
Past Century ◽  
The Past ◽  
Lake Balkhash ◽  
The Impact

Over the past century, the impacts of human activities on the natural environment have continued to increase. Historic evolution of the environment under anthropogenic influences is an important reference for sustainable social development. Based on the geochemical analyses of a short sediment core of 49 cm from Lake Balkhash, the largest lake in Central Asia, potential factors historically influencing geochemical variation were revealed, and influences of human activity on regional environmental change were reconstructed over the past 150 years. The results showed that the dominant factor inducing changes in potentially toxic elements (V, Cr, Co, Ni, Zn, Cu, Cd, and Pb) is the physical weathering of the terrestrial materials. The variation in Ca content was influenced by the formation of authigenic carbonate. Since 1930, potentially toxic elements (Cr, Co, Ni, Zn, Cu, Cd, and Pb) in the lake sediments have obviously been affected by human activities, but the impact of human activities has not exceeded that of natural terrestrial weathering. In particular, the enrichment factors (EFs) for Cd and Pb reached 1.5. The average ecological risks of Cd were higher than the criterion of 30, suggesting a moderate risk to the local ecosystem in recent years. Total risk indices indicated moderate potential ecological risk for the lake ecology. The results will provide support for the environmental protection and better management practices of the Lake Balkhash watershed.

scholarly journals Potentially toxic elements distribution in the contaminated bottom sediments by the industrial genesis within Lower Don river system

2021 ◽  
Vol 265 ◽  
pp. 02018
Author(s):  
Dina Nevidomskaya ◽  
Tatiana Minkina ◽  
Yuri Fedorov ◽  
Yuri Litvinov ◽  
Alexei Shcherbakov ◽  
...  
Keyword(s):  
Particle Size ◽  
Power Plant ◽  
Bottom Sediments ◽  
Toxic Elements ◽  
River System ◽  
Potentially Toxic Elements ◽  
Size Fractions ◽  
Particle Size Fractions ◽  
Anthropogenic Systems ◽  
The Impact

The work presents the results of studying the content of potentially toxic elements (Mn, Cu, Zn, Cr, Pb, Ni and Cd) in bottom sediments sampled at monitoring stations in the natural-anthropogenic systems of the Lower Don adjacent to the impact zone of the Novocherkassk Power Plant. The relationship between the content of metals in bottom sediments and their sorption properties is largely determined by the conditions of formation and the type of bottom sediments. Evaluation of the potentially toxic element content in sediments indicated that in particle size fractions (≤ 0.001 mm) could accumulate more than 15 times the levels of Cr and Zn and more than 6 times the levels of Cu, Cd and Ni in comparison to the particle size fractions that are 1.0 mm. Local zones of polyelemental pollution of bottom sediments with respect to Cu, Zn, Pb Cd and Cr were determined. These zones are confined to the geochemical sorption barriers of small watercourses of the power plant.

scholarly journals Survey of intertidal ecosystem reveals a legacy of potentially toxic elements from industrial activity in the Skeena Estuary, British Columbia, Canada

2019 ◽  
Author(s):  
Tom Sizmur ◽  
Lily Campbell ◽  
Karina Dracott ◽  
Megan Jones ◽  
Nelson J. O’Driscoll ◽  
...  
Keyword(s):  
British Columbia ◽  
Industrial Development ◽  
Toxic Elements ◽  
Benthic Invertebrate ◽  
Potentially Toxic Elements ◽  
Estuarine Sediments ◽  
North Coast ◽  
The North ◽  
Intertidal Ecosystem ◽  
The Impact

AbstractRelationships between concentrations of Potentially Toxic Elements (PTEs) in estuarine sediments and their impact benthic invertebrate communities are poorly understood. We sampled and analysed PTEs in sediments and benthic invertebrates from five sites surrounding the Skeena Estuary, including sites adjacent to an abandoned cannery and a decommissioned papermill. There was no indication that sediments of the salmon cannery are polluted, but acidic sediments adjacent to the papermill contained elevated concentrations of Cd, Cr, Hg and Pb. Benthic invertebrate community assemblages confirm that sediments have recovered from prior disturbances associated with discharge of papermill sludge. Oregon pill bugs (Gnorimosphaeroma oregonensis), observed at all five sites, feed on the fibers associated with the papermill discharge. Thus, G. oregonensis are useful biomonitors for quantifying the impact of the decommissioned papermill, and similar industrial development projects, on intertidal ecosystems along the north coast of British Columbia, Canada.

scholarly journals Earthworms accelerate the biogeochemical cycling of potentially toxic elements: Results of a meta-analysis

2020 ◽  
Author(s):  
Tom Sizmur ◽  
Justin Richardson
Keyword(s):  
Contaminated Soils ◽  
Toxic Elements ◽  
Meta Analysis ◽  
Organic Matter Content ◽  
Potentially Toxic Elements ◽  
Toxic Element ◽  
Micronutrient Deficiencies ◽  
Earthworm Casts ◽  
Potentially Toxic Element ◽  
The Impact

<p>Earthworms are ecosystem engineers, capable of modifying the soil environment they inhabit. Recent evidence indicates that they increase the mobility and availability of potentially toxic elements in soils, but the systematic synthesis of the evidence required to understand mechanisms and identify soils most susceptible to earthworm-induced potentially toxic element mobilisation is lacking. We undertook a meta-analysis of 43 peer reviewed journal articles, comprising 1185 pairwise comparisons to quantify the impact of earthworms on potentially toxic element mobility in bulk earthworm-inhabited soil and earthworm casts and on plant uptake and concentration. We find that earthworms mobilise potentially toxic elements primarily due to the passage of soil through the earthworm gut and that this results in an increase in the concentration and uptake by plants. Earthworms mobilise potentially toxic elements in uncontaminated soils to a greater extent than contaminated soils. Soils with either very low (<2%) or very high (>10%) soil organic matter content are most susceptible to earthworm-induced potentially toxic element mobilisation. These findings have important implications for exotic earthworms burdening plants with toxic metals, but also offer a promising phenomenon that, if harnessed, may help to alleviate micronutrient deficiencies in degraded soils.</p>

scholarly journals Impact of Land Use on Concentrations of Potentially Toxic Elements in Urban Soils of Lagos, Nigeria

2018 ◽  
Vol 8 (19) ◽  
Author(s):  
Abimbola O Famuyiwa ◽  
Yetunde A Lanre-Iyanda ◽  
Olabode Osifeso
Keyword(s):  
Land Use ◽  
Urban Areas ◽  
Urban Soils ◽  
Toxic Elements ◽  
Solid Waste Management ◽  
Management Strategies ◽  
Potentially Toxic Elements ◽  
Contaminated Sites ◽  
Industrial Estates ◽  
The Impact

Background. Among soil contaminants, potentially toxic elements (PTE) are of major significance because they are ubiquitous, toxic and persistent. Chronic exposure of humans to these elements has been linked with developmental delay, cancer, atherosclerosis and kidney damage, stomach ailments, respiratory problems, heart disease and cancer. Objectives. The present study aims to investigate current PTE concentrations in urban soils of Lagos, an example of a rapidly urbanizing megacity in a developing country. The variation in PTE (chromium (Cr), copper (Cu), iron (Fe), magnesium (Mn), nickel (Ni), lead (Pb) and zinc (Zn)) levels across different land use types was examined. Information from this study will be useful in the ranking of contaminated sites, environmental quality management, guidance for remediation, redevelopment of contaminated sites and will provide crucial information for general urban planning decisions. Methods. Five areas spread across four local government areas were selected, representing different socio-economic areas of Lagos (Victoria Island, Lagos mainland, Ikeja, Ifako-Ijaiye and Makoko). Sampling locations within the study areas were comprised of school playgrounds, roadsides, ornamental gardens, open spaces, train stations, industrial estates and dump sites. A total of 126 samples were collected. Results. The overall mean levels of PTE concentrations in this study were comparable to those found in large European cities where main pollution sources include traffic and current or former heavy manufacturing industries. Conclusions. Regulation and legislation on environmental issues, including effective solid waste management strategies and enforcement of emission standards should be emphasized in order to reduce the impact of PTE pollution on the inhabitants of urban areas in developing countries. Competing Interests. The authors declare no competing financial interests

scholarly journals The Impact of Physical Properties on the Leaching of Potentially Toxic Elements from Antimony Ore Processing Wastes

2019 ◽  
Vol 16 (13) ◽  
pp. 2355
Author(s):  
Saijun Zhou ◽  
Andrew Hursthouse
Keyword(s):  
Toxic Elements ◽  
Base Cation ◽  
Potentially Toxic Elements ◽  
Mineral Dissolution ◽  
Hunan Province ◽  
Ore Processing ◽  
Ore Mineralization ◽  
Processing Wastes ◽  
High Concentrations ◽  
The Impact

This study reports on the assessment of the impact of antimony mine wastes from Xikuangshan (XKS) Antimony Mine in Lengshuijiang City, Hunan Province. We focus on the leaching of a number of potentially toxic elements (PTEs) from residues from the processing of antimony ore. The PTE content of ore processing waste and solutions generated by leaching experiments were determined for a suite of PTEs associated with the ore mineralization. These were Sb, As, Hg, Pb, Cd and Zn. As anticipated, high concentrations of the PTEs were identified in the waste materials, far exceeding the standard background values for soil in Hunan Province. For Sb and As, values reached >1800 mg·kg−1 and >1200 mg·kg−1, respectively (>600 and >90 times higher than the soil background). The leaching of Sb, As, Hg, Pb, Cd and Zn decreased with an increase in grain size and leachable portions of metal ranged between 0.01% to 1.56% of total PTE content. Leaching tests identified the release of PTEs through three stages: a. alkaline mineral dissolution and H+ exchanging with base cation; b. oxidation and acid production from pyrite and other reducing minerals; and c. the adsorption and precipitation of PTEs.

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