نتایج جستجو برای: multiple resistant to metals
تعداد نتایج: 10838767 فیلتر نتایج به سال:
Highly concentrated radionuclide waste produced during the Cold War era is stored at US Department of Energy (DOE) production sites. This radioactive waste was often highly acidic and mixed with heavy metals, and has been leaking into the environment since the 1950s. Because of the danger and expense of cleanup of such radioactive sites by physicochemical processes, in situ bioremediation metho...
Assessment of heavy metals pollution indices in sediments of Tiyab and Kolahi International Wetlands
Heavy metals are pollutants from multiple man-made or natural sources which directly or indirectly enter bodies of water. Therefore, investigation of deposits as metal contaminants is important. The international wetlands of Tiyab and Kolahi are among the most important ecosystems in the south of Iran that due to development programs are polluted by different sources. In order to identify envir...
the species of pseudomonas genus show different levels of resistance to soil's heavy metals pollution. since, there exists is a relationship between heavy metal resistance and plasmid profile of bacteria, in this study, plasmid profile of plant growth promoting rhizobacteria (pgpr) pseudomonas fluorescence isolates were studied in the presence of cadmium and zinc. the bacteria were initial...
Anthropogenic activities have resulted in the intensified use of water resources. For example, open pit bitumen extraction by Canada's oil sands operations uses an estimated volume of three barrels of water for every barrel of oil produced. The waste tailings-oil sands process water (OSPW)-are stored in holding ponds, and present an environmental concern as they are comprised of residual hydroc...
The efficacy of a miniaturized unimolecular analytic system is illustrated. The easily accessible therapeutic chromophore "temoporfin", which responds differentially to bound metals at multiple wavelengths of Q-band absorption using chemometric analysis, expeditiously detects and discriminates a wide range of metals regarded as priority pollutants in water and hence may also be used for diagnos...
With ever increasing population to feed and shrinking arable land arising from industrialization, we are in a dilemma survive sustainably along with the ecosystem belong to. Adding this, soil is continuously getting contaminated various heavy metals through multiple anthropogenic practices. Phytoremediation can be one economically feasible solution pollution as plants natural habitants of soil....
This study focused on the screening of cadmium-resistant bacterial strains from Pb-Zn tailing. We investigated the diversity of microbial community inhabiting Dong-san-cha Pb-Zn tailing in Beijing, China, by polymerase chain reaction-denaturing gradient gel electrophoresis (DGGE) of 16S rRNA gene of bacterial strain, and found two dominant strains in the DGGE profile. Using special culture medi...
Background and Purpose: Dairy products are known as an important food in human diet. This study was carried out to analyze the content of metals (Cd, Cu, Pb, and Zn) in butter and cheese, and evaluates the potential health risks of metals to humans through the consumption of dairy products. Materials and Methods: In this analytical observational study, a total of 32 samples of butter and chees...
This study focuses on identifying relationships between the content of heavy metals in water and resistance patterns different bacteria. Samples from watercourses one most important mining areas Mexico were collected. Seventy-one bacteria isolated, their to Cr, Zn, Cu, Ag, Hg, Co was studied. The Minimum Inhibitory Concentration range determined, a Multiple Metal Resistant index calculated. Aft...
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