ABSTRACT Finding an efficient method, which may decrease the pollution of soil by heavy metals, is of significance. It has been rarely determined that nano-iron particles (Fe), can contribute to the efficient removal of heavy metals from the soil under different temperature and moisture conditions. Accordingly, the objective of the present research was to investigate the effects of Fe including zero-valent

ABSTRACT The determination of heavy metals fractionation in the environment is necessary to predict their mobility and bioavailability. This study was carried out to evaluate the effects of rice husk ash (RHA) and iron-coated rice husk ash (Fe-RHA) on As, Cd, Cr, Cu, Mn, Pb and Zn fractionation in gold mine tailings. The tailings were amended with either 0%, 5%, 10%, and 20% (w/w) of RHA or Fe-RHA

ABSTRACT Environmental degradation in estuaries may lead to a serious threat to marine life and may trigger human health risk with the help of the food web. This study was conducted to evaluate the concentration, distribution, sources, pollution status, and potential risk of contamination of five trace metals (Cd, Cu, Pb, Zn, and Fe) in estuarine surface sediment of ten different estuaries with their

ABSTRACT The occurrence of 16 perfluorinated compounds (PFCs) in soil and sediment from the surroundings of a metal plating industrial park was investigated. The PFCs were quantified using isotope dilution ultra-high-performance liquid chromatography coupled with triple quadrupole mass spectrometry (UPLC-MS/MS). The ranges of the most commonly detected nine PFCs were 1.71–16.3 ng g−1 dry weight (dw)

ABSTRACT Fluopyram, flupyradifurone, and indaziflam are novel systemic pesticides developed by Bayer. Based on available data, these pesticides appears to have a favorable safety profile in the case of pesticide residue problems. Herein, we report an effective analytical method for the determination of novel pesticides were developed using ultra-high performance liquid chromatography with tandem mass

ABSTRACT This study investigated the removal of polycyclic aromatic hydrocarbons (PAHs) from soils around a cement factory in Bursa-Turkey. UVA and UVA-H2O2 applications were carried out with the particular apparatus. The evaporated PAHs were collected with the polyurethane foam (PUF) column in this apparatus. UVA applications were carried out simultaneously at two temperatures (18°C and 35°C) to determine

ABSTRACT Selective accumulation of heavy metals in mangrove plant parts have been reported earlier; however, varying heavy metal accumulation in the sediments adjacent to different mangrove plant species is rarely reported. We hypothesized that the pattern of heavy metal accumulation could vary in the adjacent sediments of different mangrove plant species. We compared the heavy metal accumulation (As

ABSTRACT Rapid industrialization at Kuala Langat, Selangor have raised environmental and health concerns among the public. Surface sediments from a total of 10 stations, covering the upstream and downstream sites near to plastic recycling factories along Langat River were collected and analyzed for its physicochemical properties, bioavailable heavy metals concentration and pollution degree. Ecological

ABSTRACT The objective of this study was to determine the occurrence, origin, and risk of Cadmium (Cd), lead (Pb), chromium (Cr), nickel (Ni), copper (Cu), manganese (Mn), zinc (Zn), and iron (Fe) in soil profiles from petroleum tank-farms in Western Delta, Nigeria. The soil samples were digested with aqua-regia, and the concentrations of the metals were determined using an atomic absorption spectrophotometry

ABSTRACT Coimbatore is one of the industrial cities in Tamil Nadu, India, which has been experiencing rapid urbanization and population growth. Coimbatore is also known for its unique freshwater lakes environment and serves as a rich ecosystem. However, the assessment of heavy metal levels in aquatic environments is limited. This study was aimed to investigate physicochemical parameters, heavy metals

ABSTRACT Bioenergy plants that are better adapted to metal-contaminated lands can be used for phytoremediation purposes and also can be additionally used to produce biofuels such as bioethanol, biodiesel, and biogas. These plants offer the dual advantages of phytoremediation and bioenergy production and majority of them are heavy metal accumulators sequestering exceptionally high amount of the absorbed

ABSTRACT Phytoremediation is an effective and affordable technological solution to extract or remove metal pollutants from contaminated soil. In this study, the ability of Hedera colchica plant for the removal of Pb and Ni metals with different concentrations from soil and also metal efficacy on morphological parameters of the plant were investigated. The morphological results showed that as the concentration

ABSTRACT Microplastics (MPs) have become a worldwide concern due to their potential impacts on ecological systems. This study investigated the MPs in sediments of Yushan River, an urban river tributary of the Yangtze River, China. MPs were observed to be present in the sediments with 3.5–53 mg·kg−1 or 30–70 items·kg−1. The average abundance of 44 items kg−1 found in this study was relatively lower

ABSTRACT The work investigated the concentration of perfluorinated compounds (PFCs) in surface water, sediments and aquatic plants of Nansi Lake, China. The total concentration of 12 PFCs was in the range of 34.07–153.39 ng/L in surface water. The short-chain PFCs were dominant PFC homologs, and the concentration of PFOA was higher than that of PFOS in water samples. The total concentration of 12 PFCs

ABSTRACT The extensive use of diesel as fuel has contributed to the current problem of soil contamination, and the aged diesel is a highly toxic pollutant for the soil microbial flora. The objective of the present work was to determine the ability of mono-rhamnolipid surfactants to solubilize weathered diesel absorbed for decades in a loamy sand soil. The mono-rhamnolipids were produced by P. aeruginosa

ABSTRACT Coastal lagoons are highly sensitive ecosystems from the ecological point of view. Water samples to assess physicochemical parameters, as well as sediments to measure trace metals (Cd, Cr, Cu, Ni, Pb, Zn and Hg) were collected in seven coastal lagoons of the Sabana-Camagüey Archipelago. Los Caimanes, Tortuguilla and La Salina lagoons showed high salinity levels (>100.0 PSU). High concentrations

ABSTRACT In this study, a new approach to predicting the ability of a hydrometallurgical process to simultaneously remove metal(loid)s, pentachlorophenol (PCP), and polychlorodibenzodioxins and furans (PCDD/F) from contaminated soil is developed. The remediation process consisted of attrition and alkaline leaching steps applied for the coarse (> 0.250 mm) and fine (< 0.250 mm) fractions, respectively

ABSTRACT This study determined the total concentrations, chemical speciations and their potential ecological risks of 11 metals from soil samples collected from 13 different locations in the Göksu Delta, a special environmental protection site in Turkey. In accordance with the total metal concentration results the contamination levels caused by the 11 heavy metals decreased in the following order:

ABSTRACT The concentrations of selected heavy metals including cadmium (Cd), lead (Pb), zinc (Zn), copper (Cu), nickel (Ni) and iron (Fe) in stems and leaves of Artemisia herba-alba medicinal plant and soil samples were evaluated. Results showed that there in heavy metal concentrations of washed and unwashed parts of A. herba-alba from northern site (Irbid), Middle site (Al-Mafraq), and Souhern site

ABSTRACT In this paper, laccase is immobilized by the cross-linking method, using organic fertilizer as a carrier and glutaraldehyde as a cross-linking agent. Here, the optimal conditions of laccase immobilization were explored and the optimal operating conditions and stabilities of free laccase and immobilized laccase were also studied. Then, free laccase and immobilized laccase were applied to the

ABSTRACT A safe use of herbicide in the environment can be assessed by it’s adsorption – desorption behavior in soil. In the present work laboratory studies were performed to examine adsorption-desorption behavior of penoxsulam herbicide on six soils having widely different properties. Adsorption kinetics of penoxsulam was best accounted by pseudo-first order model. Among acidic soils, soil having

ABSTRACT Nanomaterials (Nms) applications and environmental deposition are continuously increasing. Aluminum (Al) and nickel (Ni) fate in soil, both from gamma alumina-based Nms and as chloride salts were evaluted through lysimeters. After 85 days of treatment, which included irrigation and collection of eluates, the soil of each lysimeter was divided into four sections. The metal concentration was

ABSTRACT Histosols have a high organic matter content and therefore a high variability of structures and chemical functional groups with adsorptive capacity. This study aimed to select the most appropriate models to describe the sorption phenomena of Cu and Pb in Histosols, identify the types of bonds between these metals and soil samples, and assess the influence of soil attributes and soil humic

ABSTRACT Soil contamination with heavy metals has become a worldwide concern. A sustainable technology to mitigate heavy metal contamination is extremely important. Phytoremediation is a cost-effective method, environmentally friendly, and esthetically pleasing. The aim of this study was to investigate the potential of Vetiver phytoremediation of soils contaminated with heavy metals. This research

ABSTRACT Lead contamination in soil due to anthropogenic activities has amplified and therefore, remediation is of prime significance due to its nonbiodegradability and toxicity effects. This study focuses on lead removal from the soil collected from a rifle range using biosurfactants produced from native microorganisms and edible oils. Native microorganisms in contaminated soil served as a source

ABSTRACT The trace metals in soil samples collected from a waste dump near eight kinds of mining sites included kaolin, gold, iron, clay, bauxite, bazan, construction stone, and antimony, located in Tay Nguyen region, Central highlands of Vietnam were investigated. The concentration of Cu, Pb, and Zn in soil were higher group compared to others heavy metal at almost mining areas in Tay Nguyen, Viet

ABSTRACT An attempt has been made to assess the geoavailability of heavy metals in polluted soils using short sequential fractionation schemes. For this purpose, 25 composite soil samples were collected from various locations (across India) of which had a history of receiving sewage sludge, municipal solid waste, polluted river water and industrial effluents. Four composite soil samples were also collected

The use of high-concentration ammonium sulfate leaching agent for the mining of ion-absorbed rare earth ore will change the soil environment properties, thereby inducing the release of associated heavy metals. Serious manganese pollution has been observed in the environment of rare earth mining areas, but the environmental chemical process of manganese in the raw ore soil has not been fully recognized

Soil pollution with heavy metals and iron (Fe) malnutrition is big concern of industrial areas in arid and semi-arid regions. We studied the potential of Fe-enriched green manures application and Piriformospora indica (P.indica) to increase grain Fe concentration of two bread wheat genotypes differing in Fe efficiency (Triticum aestivum L. cvs. Falat, and Durum) in a Pb-polluted soil. To prepare Fe-enriched

The hereby study was conducted to assess the chronic biological effects of potentially contaminated sediments collected at the Zarzis area, Tunisia, on the marine mussel species (Mytilus spp.). Useful information can be provided through the analysis of biomarkers that allow inferring about the presence of pollutants and their adverse effects, contributing for a better assessment of ecosystems' quality

An attempt was made to study the use of bacterial species Pseudomonas putida immobilized on coconut coir pith to degrade Total Petroleum Hydrocarbon (TPH) present in soil contaminated with crude oil. The soil was spiked with crude oil to get a concentration of 10,000 mg/kg soil. The bacterial species Pseudomonas putida was immobilized on coconut coir pith and used for the degradation of crude oil.

Worldwide demand for gold has accelerated unregulated, small-scale artisanal gold mining (AGM) activities, which are responsible for widespread environmental pollution in Ghana. This study was conducted to assess the impact of AGM activities, namely the heavy metals pollution of soil-water-vegetative ecosystems in southern Ghana. Composite soil, stream sediments and water, well water, and plant samples

ABSTRACT Soil contamination is one of the common and controversial environmental issues all over the world. Soil pollution through extraction, transfer, and petrochemical activities of petroleum products causes both environmental issues and geotechnical problems. Such pollution can reduce soil bearing capacity and can change soil permeability. In this paper, a series of geotechnical tests have been

ABSTRACT Low-molecular-weight organic acids (LMWOAs), a type of small organic molecules with one or more carboxyl groups present in soil, play an important role in the soil ecosystem. Greenhouse soil could be as a key example to understand LMWOA distribution and its ecological effects on heavy metals. In this study, 54 soil samples and 24 vegetable samples were collected from Wuqing, Tianjin, China

At present, plant–microbial remediation of soil petroleum pollution has been widely used, but the study of using models to predict remediation effect and find optimal remediation conditions is still very lacking. In this paper, on the basis of the numerical model of previous research, the effects of Suaeda salsa–microbial remediation technique on soil petroleum hydrocarbon pollution were simulated

ABSTRACT At present, plant–microbial remediation of soil petroleum pollution has been widely used, but the study of using models to predict remediation effect and find optimal remediation conditions is still very lacking. In this paper, on the basis of the numerical model of previous research, the effects of Suaeda salsa–microbial remediation technique on soil petroleum hydrocarbon pollution were simulated

In this study, batch and column experiments were conducted to investigate the effect of MgO nanoparticles (NPs), humic acid and biochar for boron (B) immobilization in contaminated soil. Results showed that the fate and mobility of B was controlled by adsorption reactions and the amount of B adsorption increased in soil treated with MgO at 2% wt while the amount of B adsorption declined in presence

Enhanced subsurface reductive potentials and anaerobic conditions induced by organic residues at oilfield sites may affect arsenic (As) levels in groundwater (GW) and GW-irrigated crops. To substantiate this effect, a Fe/Mn-As binary mineral oxide (FMBO-As) was synthesized by co-precipitation and a series of soil columns packed with varying FMBO-As levels were eluted with simulated oily wastewater

Investigation of heavy metals in the bed sediments of wetlands can be used as an appropriate index for determining environmental quality of wetlands. In this study, the concentration of lead (Pb), zinc (Zn) and cadmium (Cd) in sediments of 8 points in the Hashilan wetland was evaluated. Geo-accumulation index (I geo), input potential index (IPI) and pollution index (PI) calculated for bed sediments

Phytoremediation is an emerging green technology for the management of contaminated soils. Plants that are hyper accumulators are used for in situ removal, degradation or decontamination of pollutant elements. The tolerance of heavy metals is the plant characteristic required for hyper accumulation. Different chelating agents such as Ethylenediamine Tetra-acetic acid (EDTA) facilitate metal uptake

A powerful anodic stripping voltammetry (ASV) was proposed using a bismuth film coated on screen-printed carbon electrode (Bi-SPCE) in conjunction with the Tessier’s sequential extraction procedure for determination of various forms of cadmium and lead in soil. A dynamic flow-through stirred extraction system was employed to simulate the natural percolation of liquid through the solid soil that causes

A field survey was performed to investigate the metals contamination in the vicinity of tungsten mining areas. Ten sampling sites alongside perennial wind direction were selected for soil collection and heavy metal contents determination, include Cr, Cu, Zn, Pb, As, Cd, and W. Horizontal and vertical distribution characteristics of metals were performed. Geo-accumulation and potential ecological risk

In this work, the thermally modified attapulgite was prepared by high temperature modification and analyzed by scanning electron microscope (SEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR) and specific surface area test (BET). The results showed that the crystal phase structure of the thermally modified attapulgite was not changed compared with the attapulgite, but the

ABSTRACT Heavy metal pollution in soil has an increasingly serious impact on the ecological environment, quality of agricultural and livestock products, and healthy living. Researches on detection methods and remediation technologies for heavy metal contaminated soil have received widespread attention. In this paper, the conventional mechanical properties and viscoelastic properties of heavy metal

ABSTRACT In this study, electrokinetic remediation (EKR) was performed to reduce the risk of heavy metal contaminants viz., Cd, Cu, Ni, Pb and Zn associated with different fractions of lake sediments. Firstly, batch experiments were performed to estimate the optimal concentration of enhancing agents such as EDTA, nitric acid and acetic acid for effective dissolution of heavy metals from sediments and

ABSTRACT Reduction of Cr(VI) to Cr(III) in aqueous solution and also in suspension of contaminated soil with hydrazine has been investigated thoroughly. The effects of the major parameters such as concentrations of Cr(VI) and hydrazine and their mole ratio, the fraction of soil in suspension, pH and temperature on the rate of reduction have been studied. Suspended oil has a strong catalytic effect

ABSTRACT The present study was undertaken to characterize the Cr(VI)-resistant bacteria isolated from the chromite mine area of Sukinda, Odisha through 16S rRNA sequencing technique followed by homology search, secondary structure analysis. The 16S rRNA sequencing resulted in varied bacterial sequence lengths. Characterization of these isolated sequences showed the dominance of the members of the genera

ABSTRACT Bioremediation as a bioprocess has great potential to reduce the toxicity of heavy metals such as lead (Pb) from contaminated sites. In this study, the Pb-bioremediation potential of Microbacterium oxydans CM3 and CM7 (individually and a mixture of both strains) was evaluated. To improve the Pb-bioremediation efficiency, the response surface methodology (RSM) was used to optimize the process

ABSTRACT The heavy metal risks posed by suspended particulate matter (SPM) in fluvial system have long been ignored. In this paper, we characterized the heavy metal pollution within SPM sampled from a typical slow-moving river-Ziya River Mainstream (ZRM). The concentrations of Cr, Ni, Cu, Zn, As, Cd, and Pb were determined by ICP-OES and ICP-MS. Measurements indicated that all seven heavy metal contents

ABSTRACT Innovative biological processes that utilize the power of microorganisms are interesting tools for the treatment of Heavy metals polluted soils. This study conducted in column systems containing three different soils artificially contaminated with Cr, Zn and Cu, investigates the effect of soil bioaugmentation by two yeast strains Wickerhamomyces anomalus and Candida tropicalis on heavy metal

ABSTRACT Anthropic activities and agricultural practices have increased the rate of pollutants in ecosystems. Consequently, this can alter soil chemical properties, biological functioning, and fertility. Our work aimed to evaluate the impact of nickel (Ni) contamination on rhizospheric soil’s physico-chemical properties and microbiological activities in the presence of alfalfa plants. For this purpose

ABSTRACT This work aims to assess growth, physiology, and metal uptake response of Brachiaria mutica and Leptochloa fusca under different contamination levels of Cd (10 and 50 mg kg−1) and Pb (50 and 250 mg kg−1) stress. Results of pot trial showed increasing metal concentration affected B. mutica more as compared to L. fusca. In B. mutica metal stress substantially reduced shoot dry biomass, root

Soil pollution with heavy metals and iron (Fe) malnutrition is big concern of industrial areas in arid and semi-arid regions. We studied the potential of Fe-enriched green manures application and Piriformospora indica (P.indica) to increase grain Fe concentration of two bread wheat genotypes differing in Fe efficiency (Triticum aestivum L. cvs. Falat, and Durum) in a Pb-polluted soil. To prepare Fe-enriched

The aim of the present work is to broaden our knowledge on the variability of metals and metalloid concentration levels in surface sediments, macroalgae and mollusc. Accordingly, As, Co, Cr, Cu, Mn, Mo, Ni, Pb, and Zn levels in surface sediments, marine macroalgae species (Ulva intestinalis and Ceramium rubrum) and mollusk (mussel Mytilus galloprovincialis) collected from nine stations along the Sürmene

In view of the constant biological researches, it is important to highlight the necessity to develop new instrumentation techniques. In this way, it is possible to use organisms as biological sensors to define new methodologies for a better understanding of the behavior of living beings. Indiscriminate contamination of soil by herbicide has been receiving more attention due to the increase in agriculture

In this paper, 153 samples of heavy metals in the soil of a coal chemical plant in Northwest China were collected in the study area to predict and evaluate the human health risks of arsenic (As), cadmium (Cd), chromium (Cr(VI)), lead (Pb), and mercury (Hg) in the soil of the plant area in 2021, 2026, and 2031 and their change laws by referring to the “Soil Environmental Capacity Model,” “Technical

Utilizing fine-grained soils containing clay minerals in most of the structures due to the specific surface area, ion exchange capacity and high adsorption capacity of hazardous contaminants have always been considered with the geotechnical view of the environment. In this study, the effect of contamination and stabilization of anionic pollutants (As) on the most important mechanical and physical properties

Cadmium (Cd) is readily absorbed by plants and can accumulate to concentrations that exceed food standards. Testing strategies that can mitigate plant uptake of Cd are essential to help manage the risk to food quality. We measured whether applying silicon (Si) fertilizer to a soil contaminated with Cd from phosphate fertilizer could decrease Cd concentrations in spinach (Spinacia olearacea) and onion

Heavy metal contamination of agricultural soil has become a critical issue worldwide. A sustainable approach to mitigate heavy metal contamination is extremely important. Phytoremediation has been proved to be a well alternative for soil remediation as cost-effective, environment friendly, and esthetically pleasing. This review briefly elucidates heavy metal tolerance, uptake, and the corresponding

The delayed geochemical hazard (DGH) model was used to show that environmental pollution risk from Pb is a dynamic process as opposed to static. The DGH model describes the potential transformation and release of Pb partitioned in the different fractions of the soil that may be inert but becoming reactive when the conditions of the soil such as pH, moisture, and organic matter become favorable or when