Phytoextraction is a remediation technology that uses plants to remove heavy metals from soil. The success of a phytoextraction process depends on adequate plant yield (aerial parts) and high metal concentrations in plant shoots. A pot experiment was conducted to investigate the combination effects of plants [sunflower (Helianthus annuus) and canola (Brassica napus)] with soil treatments (manur...

The application of cattle slurry to agricultural soils contributes the circular economy, while enriching soil in macro and micronutrients organic matter. However, this practice can have deleterious environmental effects, by adding toxic metals other contaminants. pseudo-total concentrations nine potentially trace (Fe, Mn, Zn, Cu, Ni, Co, Cr, Cd Pb) as well extracted DTPA, Mehlich 3 0.01 M CaCl ...

As an emerging contaminant, rare earth elements (REEs) are becoming environmental concern, especially in Chinese cities. This study investigated the distribution of REEs river water and tap samples Guiyang, Southwest China. In all samples, concentrations total dissolved REE (∑REE) ranged from 15.1 to 53.3 ng·L–1, with heavy enriched than light elements. Most showed significant positive Gd anoma...

Considering the ever-increasing state of pollution in different aspects of the environment, ornamental plants and herbs such as Lavandula have become the center of attention mostly due to their availability and use in urban green spaces. Phytoremediation is a modern and economical method which can be applied to metropolises for decreasing metal contaminations in soil, water, and atmosphere. Thi...

to evaluate the impact of the application of thehran municipal solid waste compost (mswc) on zinc and copper concentrations in the soil under maize (zea mays. l.) cultivation, a factorial experiment in base randomized complete block design (rcbd) with two different amounts of municipal solid waste compost (zero, 30.15 and 60 t ha-1) and time (compost applied once or twice) was performed with th...

An electron microscopic technique, energy-dispersive x-ray (EDX) analysis, was applied to rat tissue specimens containing gadolinium diethylenetriamine-pentaacetic acid (DTPA). EDX spectroscopy was able to detect the characteristic radiation spectra of gadolinium from tissues in concentrations as low as 0.005 mmol per gram of tissue. A mapping algorithm allowed the detected spectra to be assign...

Application of magnetic resonance imaging (MRI) in two-dimensional quantitative assessment of blood-retinal barrier dysfunction was investigated in rabbits using a 0.1 T (4.25 MHz) resistive system. Reliable and consistent measurements of vitreous T1 were obtained repeatedly, in slices of width 5 mm and X-Y resolution of 1.2 mm. Calibration of reduction of T1 in eyes after injection of gadolini...