نتایج جستجو برای: resistance to heavy metals
تعداد نتایج: 10767236 فیلتر نتایج به سال:
background: persian gulf is a semi-closed environment which is affected by pollution from heavy metals. entrance of heavy metals to the water column and binding to sediment particles can affect the benthic organisms that can accumulate these materials in their body. noticing this ability, mussels are considered as bio-monitoring agents. methods: the pearl oyster, pinctada radiate, and sedi...
Heavy metals contamination of soil is a widespread global problem. One approach to reduce the accumulation of heavy metals in plants is using of different growing substrates. In order to investigate of different combinations substrate and heavy metals effect on physiological and biochemical traits in bean) cv. Sadri), an experiment was conducted. The first factor included four salt of heavy met...
in order to evaluate the phragmites australis, myriophyllum spicatum and potamogeton perfoliatus aquatic plant species as an indicator organism of heavy metals pollution in bio-monitoring studies of the aquatic ecosystems, the aim of this study was to determine the levels of heavy metals accumulation zn, cu, pb and cd in sediments, roots, stems and leaves of these plants in north and south of t...
the status of lead and cadmium in soils of high prevalenct gastrointestinal cancer region of isfahan
normal 0 false false false en-us x-none ar-sa background: cadmium and lead compounds are classified as human carcinogens by several regulatory agencies. twenty five percent of all cancer-related deaths are attributed to gastrointestinal cancers (gi ca). we investigated the levels of 2 different heavy metals (cd and pb) in the soils of the lenjanat region, isfahan province, central iran where in...
Heavy metals are one of the main groups of environmental pollutants; enter the aquatic environment through natural and human activities. These metals may accumulate in aquatic organisms including fish and be a potential danger to the health of the ecosystem and living organisms, especially for human beings. In this study, the amount of heavy metals including copper, zinc, and nickel was investi...
With industrial and economic growth and production of different compounds and chemical materials which human being has gained using natural resources for his ease and comfort , in turn , he introduces matters such as heavy metals and toxic agents into the nature , an unwanted process which leads to serious problems and dangers either for environment or for himself. This study aims at determina...
Backgrounds and Objectives : Heavy metals in dust can enter to the human body through ingestion andinhalation. They can pollute the water and soil resources via atmospheric precipitation and accumulate in the plants tissue and enter human body by water and food. The aim of this study was measurement of the heavy metals in wet and dry atmospheric precipitation and effects of pollution sources at...
Background and purpose: Fish is an important source of protein for human and is an important part of the diet, so, studying the concentration of heavy metals in commercial fish could be helpful in evaluating the risk of fish consumption. Materials and methods: A total of 60 fish samples from four different species including anchovy, white, perch, and trout was randomly collected in fall 2016 f...
Background: Heavy metals contaminations are recognized as the serious risk to our environment. The aim of the present study was to analyze heavy metals residue in cultivated mango samples from Iran. Methods: Totally, 72 mango samples were randomly collected among six different mango genotypes cultivated in Southern Iran from June to July 2015. Lead, chromium, cadmium, and arsenic were determin...
Abstract Background: To protect against the adverse effects of heavy metals on human health, investigation of heavy metal contents in cigarettes and aromatic tobaccos is essential. The aim of this study was to assess heavy metals in some highly-used samples of cigarettes and aromatic tobaccos in the Iranian market. Methods: In this study, 9 cigarette and 3 aromatic tobacco samples found i...
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