Water, Air, & Soil Pollution

Wed, 11/06/2019 - 03:16
The objective of this study is to identify the feasibility of using rhamnolipid biosurfactant to remediate heavy metals contained in manganese nodules collected from the Clarion-Clipperton Fracture Zone, Pacific Ocean. Deep-sea manganese nodules may represent one of the most important future natural resources for heavy metals due to the depletion of resources on land. Since international marine...
Sun, 10/27/2019 - 03:20
The impact of cerium oxide nanoparticles, bulk cerium oxide and ionic cerium nitrate on the plant development as well as the uptake and further translocation of Cu, Mn, Zn and Fe by sugar pea (Pisum sativum L.) was investigated. Plants were cultivated in the laboratory pot experiments using the modified Hoagland solutions supplemented with cerium compounds at the 200 mg L−1 Ce level. Analysis of...
Sun, 10/27/2019 - 03:20
Two-dimensional HPLC (2D-HPLC) recently has received great attention due to providing high resolving power and higher peak capacities than that of 1D-HPLC, especially dealing with a wide spectrum of sample matrices containing several components. In this work, an on-line heart-cutting two-dimensional liquid chromatography (2D-LC) method was developed using monolithic columns coupled with reversed-...
Fri, 10/25/2019 - 03:20
Analysis of limnic sediments can serve as a tool to assess sedimentary pollution for both the status quo as well as changes over time. However, in environmental studies, often only a small number of established well-studied contaminants are considered. This study focused on a more comprehensive investigation of sedimentary pollution of Djerdap Reservoir. Therefore, complementary analytical...
Wed, 10/23/2019 - 03:21
Phytomanagement used on soils contaminated with metals aims to stabilize them in the soil. It generally uses less demanding tree species such as maple, poplar, and black locust. However, it is important to consider the rate of accumulation of metals in the leaves as well as their location (leaf blade/petiole) together with the contents of cell wall compounds (hemicelluloses, cellulose, lignin)....
Sat, 10/19/2019 - 03:18
Engineered nanoparticles (NPs) could be coated by surfactants and modify the bioavailability and toxicity of heavy metals. In this study, the single and combined effect of sodium dodecyl benzene sulfonate (SDBS) and NPs on the toxicities of Cd2+ to wheat seedlings was investigated by a root elongation, and the underlying influence mechanism was further discussed. The results showed that the...
Mon, 09/23/2019 - 03:13
This study aimed to estimate in laboratory the temporal production of methylmercury during the filling of reservoirs of hydropower plants and to correlate it to the ecosystem of different locations in northern Brazil: Jirau hydropower plant in the Madeira River in the state of Rondônia (white waters—under construction), Cana Brava hydropower plant in the Tocantins River in the state of Goiás (...
Mon, 09/23/2019 - 03:13
Leaves of five selected plants Citrus limon (Rutaceae), Ceratonia siliqua L., Olea europaea (Oleaceae), Washingtonia filifera, and Myoporum (Myoporaceae) grown in Jordan were examined for removal of heavy metals (cadmium (Cd) and lead (Pb) ions) for aqueous solutions. Cd and Pb were analyzed by atomic absorption spectrometry. A pH S-2 acidometer was used for determining the acidity of leaves–...
Mon, 09/23/2019 - 03:13
This study aimed to determine the mycoremediative capacity of filamentous fungi consortia in landfill heavy metal contaminated soil. Streak plate method was utilized for the isolation of fungi from the landfill soil. Isolates were identified using morphological and molecular techniques. Heavy metal tolerance of the fungi was determined using radial growth diameter technique. Twelve species of...
Mon, 09/23/2019 - 03:13
2,4-Dichlorophenoxyl acetic acid (2,4-D), glyphosate, and metribuzine are used extensively as an herbicide in the vicinity of Antalya, Turkey. The objective of this study was to investigate the mobility of such herbicides in terra rossa-amended soil by multiple approaches with batch, miscible-displacement, and mathematical modeling studies. The results indicated that the sorption isotherms...
Mon, 09/23/2019 - 03:13
Diclofenac (DCF) is one of the most widely used non-steroidal anti-inflammatory drugs worldwide, and several studies have reported adverse effects on the environment, in plants and animals; so, it is classified as an emerging pollutant. There are several alternatives for its removal; however, it is necessary to study the way in which the DCF is degrading to offer more effective removal techniques...