abstract aims: the chemical elements in water resources, especially groundwater, can affect the water consumption purposes. the aim of this study was to evaluate the status of the overall pollution level of ground water of qaleeh shahin plain with respect to heavy metals by cd and hei methods. instrument & methods: this cross-sectional semi-experimental study was conducted in sarpol-e zahab tow...

a student-centric research education program with the active participation of undergraduate students is initiated. the aim is to imbibe ―responsible citizenship behavior‖ in them so that each member becomes conscious and well trained to take up environmental-related issues and challenges for long-term sustainability of the ecosystem. in this work, we report spectrophotometer-based estimation of...

background: the concentrations of heavy metals in the tissues and organs of fishes indicate the concentrations of heavy metals in water and their accumulation in food chains. in the present study, the concentrations of zn, cu, cd, ni, v and pb in three common species of fish and the potential health risks to local residents via consumption of the fishes were estimated.  methods: the concentrati...

background: various chemicals are used to produce polymers ,leakage of polymer materials over the time , can cause health problems the aim of this research was to evaluate the leakage of heavy metals from the pvc and polypropylene pipes used in the water distribution system in isfahan. methods: four brands of pp pipes and two various types of pvc pipes were analyzed in this study. concentration...

Acidiphilium sp. strain PM (DSM 24941) was isolated from Rio Tinto's acidic, heavy metal-rich waters. Voltammetry experiments revealed that this strain is capable of electricity production even under aerobic conditions. Here we report the draft genome sequence of Acidiphilium sp. PM and a preliminary genome analysis that reveals a versatile respiratory metabolism.

in current work, cds/black carbon nanocomposites were successfully synthesized with the aid of chestnut and cadmium nitrate as the starting reagents. besides, the effects of preparation parameters such as reaction time, and precursor concentration on the morphology of products and removal of heavy metals (hg+2, pb+2) were studied by scanning electron microscopy images and batch adsorption mode....

background: contamination of water by toxic chemicals has become commonly recognized as an environmental concern. based on our clinical observation in mashhad, northeastern iran, many people might be at risk of exposure to high concentrations of toxic heavy metals in water. because wastewater effluents as well as water wells have been commonly used for irrigation over the past decades, there ha...

The Taihu (Tai lake) region is one of the most economically prospering areas of China. Due to its location within this district of high anthropogenic activities, Taihu represents a drastic example of water pollution with nutrients (nitrogen, phosphate), organic contaminants and heavy metals. High nutrient levels combined with very shallow water create large eutrophication problems, threatening ...