the objective of this study was to explore the application of hybrid artificial neural network methods to predict heavy metals in rainwater based on major elements. measurements of the heavy metals pb, cu, zn, as, ni, hg, and fe in soluble rain fractions were performed in rainwater collected at the arak plain during the rainy seasons of 2012. in the soluble fractions, the concentrations of the ...

abstract         heavy metals have raised one of the most important problems in ecology and organisms life especially human being and animals. a variety of indicators including tissues of fish, birds and sediment have been used recently to measure the aquatic pollution with heavy metals. the aim of this study was to search the published articles in iran and the world on the role of helminthic p...

ated. Candida albicans was grown both in the presence and absence of Cadmium were plotted to study the growth pattern of the yeast isolate. It concentration of cadmium. The organism was found to be metals from the environmental The inorganic minerals like sodium, etc., when present above the permissible limit are harmful. -scale contamination of gravity that is 5 or more times that of water are...

Acinetobacter in surface waters are a major concern because of their rapid development of resistance to a wide range of antimicrobials and their ability to persist in these waters for a very long time. Four surface water isolates of Acinetobacter having both multidrug- and multimetal-resistant ability were isolated and identified through biochemical tests and 16S rDNA sequencing. Based on these...

background: heavy metals tend to bioaccumulate in living organisms, and their accumulation has been a major concern. as mammals are known to excrete heavy metals via their bile, it seems to be very promising to analyse metal burdens of par-asites that infect the biliary tree such as liver flukes of the genus fasciola . the pre-sent study was carried out to evaluate f. hepatica and f. gigantica ...

using of microorganisms to remove industrial pollutions of environment is an efficient methodthat mimics natural process and decrease remediation cost. in this study, 450 actinomycete strains wereisolated from high metal content soils in iran. heavy metal salt solutions in different concentrations were usedto isolate the resistant strains. 40 resistant actinomycetes which they showed highly res...

Background Release of toxic metals is one of most significant environmental problems since industrial revolution, mainly because heavy metals are not degraded and, therefore, remain in the environment. Some natural ecosystems may contain high heavy metals concentrations and, thus, it is not surprising that genes resistance to heavy metals are easily found in bacteria living in these environment...