ABSTRACT In order to explore the effect of the combination of microorganisms and castor (Ricinus communis L.) in remediating copper-contaminated soil, a pot experiment was conducted to study the synergistic effect of Acinetobacter calcoaceticus, as the rhizospheric microorganisms added to siol, on the copper uptaking by castor. The results showed that after 120 days of thinning, the shoot and root

ABSTRACT Chlorpyrifos is an extensively used insecticide in the agriculture worldwide and was often detected in both surface waters and groundwater, posing threats to local residents’ health. Temporal changes and environmental fate of chlorpyrifos and 3,5,6-trichloro-2-pyridinol (TCP; the main degradation product of chlorpyrifos) were studied in field paddy lysimeters. On the other hand, batch sorption

ABSTRACT Polycyclic aromatic hydrocarbons have adverse effects on the organisms, plants, and soil structure. Therefore, they should be removed by an appropriate and effective method. In this study, simultaneous removal of 500 mg/kgsoil of phenanthrene and pyrene was investigated for the individual and combined application of Tween 80, Triton X-100, and sodium persulfate from the alluvial soil. The

ABSTRACT Excessive accumulation of trace elements (TEs) in farmland soil-crop systems is a severe threat to food safety impeding the sustainable development of the ecological environment. This study examined the concentration, pollution status, sources, and potential risk of five TEs (As, Cu, Zn, Cd and Cr) in the soil-crop systems of the high geological background area of Lijiang, Yunnan, China. The

ABSTRACT Atrazine, one of the most frequently applied herbicides in the world, is highly persistent, and likely to contaminate runoff and groundwater resources, determined by bioassay and chemical analyses. In the present research the two following experiments were conducted in Mazandaran Province, Iran. 1) The sensitivity of eight plant species (canola, soybean, ryegrass, wild oat, wheat, littleseed

ABSTRACT The use of biological molecules to control pollutants, especially heavy metals that pollute our atmosphere, is gaining traction. In this study, simulation and optimization of process parameters using one-factor-at-a-time and response surface methodology (RSM) were employed to assess conditions for heavy metal tolerant bacteria isolated from local mining area employed in biosorption of heavy

ABSTRACT To investigate the contaminant characteristics of heavy metals in soils and vegetables surrounding a lead-zinc mine in Huize County, Yunnan Province, thirty surface soil samples and vegetable samples were collected to measure the contents of heavy metals, including lead (Pb), zinc (Zn), copper (Cu), and cadmium (Cd). The potential risk was evaluated by using the single factor pollution index

ABSTRACT Accumulating heavy metal contamination in soils caused by industrial waste, fertilizer, and wastewater irrigation is a matter of grave concern for the environment and food safety. In recent years, remediation agents with the characteristics of economy, high efficiency, and simple operation have become a popular choice for remediation of heavy metal contaminated soil. By far, there are relatively

ABSTRACT It is well documented that sole application of potassium (K) or mycorrhizal fungi can alleviate heavy metal stress in plants. As an indicator of the efficient defense in the mycorrhizal fungi-plant system, glomalin synthesis in the rhizosphere can be determined. In this study, interactive effects of mycorrhizal fungi (MY) and K on glomalin content, heavy metal uptake and mycorrhizal properties

ABSTRACT The use of manure for agricultural applications is believed to be an important factor in the proliferation of antibiotic-resistant bacteria and can affect natural soil microbial communities. The goal of this study was to determine if the application of manure on cultivated fields would result in the proliferation of antibiotic-resistant bacteria and change in soil microbial population. We

ABSTRACT A large amount of waste material and tailings, generated from opencast mineral extraction, released different heavy metals and metalloids that polluted the mine surroundings soil. In the present investigation, an attempt was made to revegetate the open-cut mine affected area. Bulk soil samples were collected from derelict Frogmore tungsten mine site, and after physicochemical characterization

ABSTRACT Surface sediment is often used to monitor contamination and assess ecological risk. We used multiple indices to assess sediment condition and ecotoxicity caused by heavy metal(loid)s (HMs) in Zarivar International Wetland (Zarivar) of Iran. We sampled the wetland at 12 stations using a Grab sampler, during both rainy and dry seasons. Using an atomic absorption spectroscopy and a mercury analyzer

ABSTRACT To mitigate the trace elements (TE) dispersion in acid mine drainage (AMD), laboratory experiments were carried out comparing nine agricultural by-products. Five adsorbent materials were selected for adsorption batch experiments. Then, the biosorbents were tested to remove TE from AMD collected from oxidized tailings heaps, using equilibrium experiments. The As adsorption on carbonatite was

ABSTRACT Three bacterial species related to the genus Thalassospira (T. lucentensis, T. xianhensis and T. profundimaris), isolated from polluted sediment and seawater samples collected from Priolo Bay (eastern coast of Sicily, Ionian Sea), were analyzed for their biotechnological potential. For this purpose, the presence of specific catabolic genes associated to aliphatic and aromatic hydrocarbon metabolism

ABSTRACT Application of biochar provide a novel approach against organic contaminated soil issues. The objective of this study was to evaluate the effect of biochars amendment on flumioxazin degradation using batch experiments. A simple and accurate pretreatment method coupled with liquid chromatography tandem with mass spectrometry was developed and successfully applied on the assessment trials of

ABSTRACT This study determined the concentrations, origin, and associated ecological and human health risks of Ʃ28PCBs in soil profiles from selected telecom-masts in the Niger Delta, Nigeria. A total of 18 soil samples were quantified for Ʃ28PCBs with gas chromatography-mass spectrometry after soxhlet extraction with n-hexane/dichloromethane and purified with florisil and silica gel column. The occurrence

ABSTRACT There are abundant oil resources in Xinjiang, and the exploitation of oil resources could easily pollute the soil. In this paper, the impact of oil pollution on permeability of the gray desert soil affected by freeze-thaw cycles under a dry and cold climate of Karamay region in Xinjiang was studied. First, varying-head infiltration tests were conducted on soil samples with different water

ABSTRACT The use of plant growth regulators to alleviate PAH phytotoxicity is an alternative choice to increase the efficient of PAH phytoremediation. In this study, the capacity of auxin and gibberellin to enhance the growth and PAH removal of ridge gourd (Luffa acutangula (L.) Roxb.) was determined. Indolebutyric acid (IBA) and gibberellic acid (GA3) at 1 and 10 mg l−1 were applied to ridge gourd

ABSTRACT Soils are one of the repositories for heavy metal. Phytoextraction with hyperaccumulator Tagetes patula (T.patula) has great promise for the cadmium (Cd) removal from contaminated soils. However, there is lack of information about the effects of soil types with different properties on the phytoextraction efficiency and the associated bacterial communities. A pot experiment was performed for

ABSTRACT A pretreatment method for detecting the available (water-soluble) tetracycline (TC) contents in soils was developed using a molecularly imprinted polymer (MIP) synthesized with TC as the template. The infrared spectroscopy, scanning electron microscopy, and TC sorption isotherms revealed a specific TC binding with the synthesized MIP in water. Upon extraction and concentration from water by

ABSTRACT The surface salt marsh sediments from marine ecosystems in the Bay of Bengal, Bangladesh was assessed for trace elements like iron (Fe), calcium (Ca), titanium (Ti), potassium (K), strontium (Sr), rubidium (Rb), zirconium (Zr), zinc (Zn), copper (Cu) and lead (Pb), their potential sources, and associated ecological risks. The range of trace elements in sediment (mg/kg) followed the decreasing

ABSTRACT The potential of Colosphospermum mopane for phytoremediation of heavy metal (HM) contaminated soil was evaluated. C. mopane seedlings were planted on soils from the vicinity of Cu-Ni mine as affected by different soil amendments (Compost and fly ash-FA) and mycorrhizal inoculation in terms of growth and HM accumulation through a 2-factorial pot experiment. The survival and dry matter yield

ABSTRACT Aquatic macrophytes absorb a number of pollutants from where they are growing and thus, they can be used as a tool for the removal of pollutants from the aquatic ecosystem. Therefore, the aim of this study was to evaluate heavy metals (Hg, Cr, Zn, Cd, and Pb) removal efficiency of Typha latifolia L. from the offshore of Hawassa Lake, Ethiopia. Based on the potential exposure of the lake to

ABSTRACT For the purpose of the nondestructive measurements of hazardous heavy-element-containing substances in soil samples, the emerging technique, triple-exposure X-ray computed tomography (CT), is proposed. The use of triple exposure (i.e. three different acceleration voltages for the X-ray tube) improves the accuracy of the identification of the atomic number of a heavy element. With lead as the

ABSTRACT Bioremediation is among the most basic and reliable way to eliminate pollutants by transforming the toxic petroleum components into less toxic metabolites. In order to compare the change of bacterial community during oil-biodegradation process, two oil-polluted sediments sampled from Tunisia were analyzed using 16S rDNA clone libraries. During the experimental period, measurements of microbial

ABSTRACT This study evaluated the occurrence characteristics to trace the origin and associated risks of organochlorine pesticides (OCPs) in soils from urban, suburban, and rural stormwater reservoirs. Samples were collected from the topsoil (0–15 cm) and subsoil (15-30 cm), and quantified for Ʃ20OCPs using a gas chromatography-mass spectrometry (GC-MS) after extraction with n-hexane and dichloromethane

ABSTRACT Polycyclic aromatic hydrocarbons (PAHs) may drive remediation at impacted soil or sediment sites. Current equations for calculating the PAH concentrations in soil that are protective of underlying groundwater (i.e., soil screening levels, or SSLs) generally assume a three-phase partitioning model, wherein PAHs partition among the soil matrix, porewater, and pore air. This simplified model

ABSTRACT The agricultural area adjacent to highways experienced high threat ofpersistent organic pollutants (POPs), which are fromvehicle exhaust, asphalt, and tyre wear.To analyze the presence, distribution patterns, ecological risk and sources of polycyclic aromatic hydrocarbons (PAHs), soil samples were collected in farmland along a highway in Jilin province, China and analyzed for 16 PAHs. The

ABSTRACT Cadmium (Cd) contamination of agricultural soils is a global concern, as it can cause the accumulation of Cd in food. In this study, an incubation experiment was carried out to investigate the effect on Cd availability in paddy soil amended four kinds of silkworm excrements organic fertilizer (SEs). And the soil amended with chicken manure organic fertilizer (CM) and no organic fertilizer

ABSTRACT The effect of lowered groundwater surface tension using alcohols and surfactants, and increased viscosity using a thickener on the performance of the air sparging (AS) process was investigated, and the mechanism of facilitated air intrusion into the saturated zone during surfactant-enhanced air sparging (SEAS) was proposed.When aqueous solutions of alcohols (e.g., ethyl alcohol) displaced

ABSTRACT Wheat is the main staple crop in Iran and thus of critical importance in human nutrition. This study was conducted to investigate the effect of individual and co-inoculation of azotobacter chroococcum bacteria (A. chroococcum) and a species (Rhizophagus irregularis) of arbuscular mycorrhizal fungi (AMF) on improving the nutritional quality of bread wheat grain. We performed a pot experiment

ABSTRACT Environmental pollution by petroleum hydrocarbon is one of the significant concerns of the contemporary world. This paper deals with the relevant environmental issues concerning the oil pollution of the petroleum industry. There is a need for further development of sustainable remediation technologies. Nineteen petroleum-degrading bacteria were isolated from an oil-polluted soil in the Suez

ABSTRACT Accumulation of microplastic in the marine environment is of great concern and has been considered to be a growing problem in the coastal sediments of Bangladesh. This research represents the large-scale abundance, characterization of microplastic contamination, and its type of polymer in the beach sediment of Cox’s Bazar. To understand the potential impacts associated with microplastic pollution

ABSTRACT Metal contamination of the aquatic environment is a serious concern, insofar as public health and environmental protection are considered. Owing to their persistent and toxic characteristics, spatial analyses of metal concentrations in sediment with comparisons with natural backgrounds are essential. This study aimed to determine the metal concentrations of Cd, Cr, Co, Cu, Ni, Pb, and Zn and

ABSTRACT The environmental contaminations occurred by exploration, drilling, extraction, transportation and storage of different substances for using in industries have serious effects on soils and their properties. This research examined the effects of phytoremediation on the removal of total petroleum hydrocarbons (TPHs) and geotechnical properties of a silty clayey sand contaminated by 3%, 5%, and

ABSTRACT This study compared polycyclic aromatic hydrocarbon (PAH) extractable fractions determined using six in-vitro methods, typically used for bioaccessibility/bioavailability predictions, for manufactured gas plant (MGP) historically contaminated soils, and evaluated the influence of soil properties. Methods used included depletive approaches for the bioaccessible fraction including butanol extraction

ABSTRACT In the present work, the arsenate [As(V)] adsorption by loam and sandy loam soil was carried out as a function of initial As(V) concentration, pH, contact time, and adsorbent dose to ensure As adsorption and its mobilization in the soil of arsenic-affected areas. The As(V) adsorption with varying time and initial As(V) concentrations were analyzed using the linear and nonlinear forms of the

ABSTRACT Fungicide Isopyrazam having pyrazole genesis has been studied for its ecological fate inside heterogeneous pedospheric matrices from varied climatic zones for the first time. Fate-determinative studies included examination of Isopyrazam’s behavior in terms of transformation via adsorption and desorption, and degradation via hydrolysis, photolysis, and biological degradation. Sorption conducted

ABSTRACT The relevance of the article is that preserving the fertility of lands and improving their quality is one of the pressing problems of today. The purpose of the paper is to build a model for the motorization of fertilization of agricultural soils. Practical and theoretical approaches were used in the study, namely, comparison of the theoretical base with practical results, as well as analysis

ABSTRACT For studying the level of pollution by polycyclic aromatic hydrocarbons (PAHs) in the Xinjiang Urumqi petrochemical wastewater irrigation area of farmland soil profiles, 60 soil samples were collected from the wastewater irrigation area and 3 different land-use types (cultivated land, wasteland, and forest land) were included. To investigate the distributions of PAHs in soil, the source analysis

ABSTRACT A consortium of already isolated strains has been applied to degrade endosulfan. These were identified by 16S rRNA technique as Stenotrophomonas maltophilia EN-1, Pseudomonas sp. TAH and Enterobacter sp EN-2. Batch experiments were conducted to access the endosulfan degradation efficiency of consortium while using various concentrations of endosulfan (5, 25, 50, 75, 100 mg/L). Maximum degradation

ABSTRACT The growth in world energy demand for oil has provided an increase in its exploration, production, and transportation in onshore or offshore operations. However, during these activities, oil spills can occur due to leaks, corrosion of pipes, blow-outs, among others. Oil spills contaminate the environment, affecting soil, surface water, and even beaches sands. The remediation of contaminated

ABSTRACT The long mining activities in Ouarsenis region can be the soil pollution source around the mine. For this reason, for the first one, seven heavy metals collected from the mine and its surroundings are calculated to know the source of these heavy metals and evaluate their contamination in the study area. The means concentration of studied heavy metals vicinity to Boucaid mine range between

ABSTRACT E-waste dismantling activities have caused serious heavy metals pollution in some parts of China. In this study, the contents of 15 metals (Ag, As, Cd, Co, Cr, Cu, Li, Mn, Ni, Pb, Rb, Sb, Sn, Tl, and Zn) in soil, sediment, and water hyacinth derived from the e-waste dismantling activities were investigated. Based on these data, the Geo-accumulation index (Igeo) and the potential ecological

ABSTRACT Studies involving oil-contaminated lateritic fine-grained soils are still scarce in literature, especially regarding treatments for improving soils mechanical properties. In this study, geotechnical properties and microstructure of a diesel-contaminated lateritic soil treated with lime are investigated and compared to tests conducted on lime-treated soil (2% to 8% lime) and diesel-contaminated

ABSTRACT Stream sediments from heavily industrialized areas, including urban areas (SS), industrial complexes (US), petrochemical industries (PS), and the Onsan industrial complex (OS) in Korea, were studied to identify 19 heavy metals pollution status and the metal sources. The concentration of heavy metals, except for Li, Be, and Cs in the stream sediments from the Onsan industrial complex near the

ABSTRACT Organic pollutants (PAHs, PCBs, and organochlorine pesticides (OCPs) from sediments and Asian green mussels (Perna viridis) in Jakarta Bay were studied using GC-MS/MS. The PAHs concentration in the sediments ranged from 186.64 to 915.71 µg.kg−1 per sediment dry weight (dw), while the PCBs and the OCPs concentration ranged from 3 to 117 µg.kg−1 and 3 to 17.99 µg.kg−1 per sediment dw, respectively

ABSTRACT In this study, 28 strains of filamentous fungi were isolated from soil that were historically contaminated with polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs; northern France). These fungal isolates were selected for their ability to use hexadecane as the sole carbon source and for hydrophobic molecule behavior. Six strains produced significant dry biomass (> 25 mg) on hexadecane:

ABSTRACT The present research aims to investigate the adsorption of a commonly used, quinalphos organophosphate pesticide on to four different agricultural soils of Punjab, India. The results revealed that the highest adsorption of quinalphos was observed on soil D (Loamy Sand). The data obtained after analyzing adsorption isotherms were subjected to classical Linear and Non-Linear (Langmuir, Freundlich

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 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 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 The present study investigated the effect of arbuscular mycorrhizal fungus (AMF) Rhizophagus intraradices on plant growth and phosphorus (P) uptake of soybean (Glycine max L.) in soils contaminated with different concentrations of heavy metals [copper (100 and 300 mg kg−1), lead (100 and 300 mg kg−1) and zinc (300 and 600 mg kg−1)] and combination (Cu100 + Pb100 + Zn300) in a pot experiment

ABSTRACT Bioremediation is a proven technology for treatment of contaminated soils. Soil physico-chemical properties and microbial composition are key factors for the successful implementation of this technology. In this study, we evaluated the bacterial diversity during bioremediation of gasoil-contaminated soils with different salinities. The results of TPH analysis indicated an inverse relationship

ABSTRACT In this study, the effects of fulvic acid (FA) were investigated on the concentrations of photosynthetic pigments, malondialdehyde (MDA) and root and stem anatomy in Triticum aestivum L. under chromium stress. Plants were grown under-controlled growth chamber conditions and then exposed to 0.10, 0.20, 0.30 or 0.50 mM chromium solution (Cr6+) and 1.5 mg/L of FA solution alone or in combination

ABSTRACT A disturbance in the normal physiology of soil macroinvertebrates can cause toxic impacts and/or disruption in mechanisms and rates of respiration. In this work, respiration rates of earthworms exposed to phenanthrene and its nitrogen heterocyclic analogs was investigated over a 30 and 90-d soil-contact-time. The study involved measurement and calculation of CO2 production by earthworms exposed

ABSTRACT Vermiremediation is considered as an evolving environmental friendly and sustainable technology. It serves as an additional parallel factor in increasing overall efficiency of bio-methods. Vermiremediation treat soils contaminated with inorganic and organic chemicals through different direct actions like bioaccumulation of chemical contaminants and indirect action like using vermicast of earthworm

ABSTRACT Acid mine drainage (AMD) has continued to be a major threat leading to the destruction of the ecosystem and contamination of soil and waterbodies. The high sulfate concentration of AMD lowers the soil pH, making the soil more acidic and less productive which contributes to a reduction in the availability of arable land for agricultural purposes. Biological treatment has offered a cost-effective

ABSTRACT Phytoremediation has emerged as promising technology for reclamation of metal-polluted sites. The present study was conducted with an aim to assess the hyperaccumulation potential of Ricinus communis for cadmium, with the application of exogenous substances, [nitrogen (N), phosphorus (P) and potassium (K)] and phytohormones [Gibberellic acid (GA3) and Indole acetic acid (IAA)]. These were

ABSTRACT The presence of different kinds of potentially toxic elements (PTEs) in trace levels is a natural phenomenon, but their enhanced level is a cursor of contamination load in that particular area. In this context a study was undertaken in Raichur industrial development area (IDA), Karnataka, India an area of traditional agricultural-based economy, majorly rice processing industries. The main