Toxic Heavy Metals
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منابع مشابه
Toxic Effects of Heavy Metals on Plant Growth and Metal Accumulation in Maize (Zea maysL.)
Background: A pot experiment was conducted to determine the toxic effects of some heavy metals on the plant growth and seed yield of maize (Zea mays L.). Materials and Metheds: Heavy metals Mn, Pb, Cd, Cr and Co individually and in combinations were added as chloride salts in solutions to the pots before sowing. The test plants for were harvested after 80 days of germination and evaluated f...
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This study was performed to explore the presence of heavy metals in some popular herbal medicines of the Iranian market. Primarily, this study was planned to do the task by the USP method. In the second step, those plants which contained more than 10 ppm of total heavy metals were analyzed by atomic absorption method. In this study, 43 popular herbal medicines were investigated according to the...
متن کاملA Quantitative investigation on some toxic and non-toxic metals in popular medicinal herbs in Iranian market
This study was performed to explore the presence of heavy metals in some popular herbal medicines of the Iranian market. Primarily, this study was planned to do the task by the USP method. In the second step, those plants which contained more than 10 ppm of total heavy metals were analyzed by atomic absorption method. In this study, 43 popular herbal medicines were investigated according to the...
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The heavy metals chiefly include Pb, Hg, Cd, Cr, Cu, Zn, Mn, Ni, Ag, etc. The heavy metals, viz., As, Cd, Pb and Hg are considered most toxic to humans, animals, fishes and environment. Excessive concentrations of heavy metals are detrimental. They destabilize ecosystems because of their bioaccumulation in organisms, and toxic effects on biota and even death in most living beings. All heavy met...
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This study was conducted to determine the concentration of five heavy metals, including lead, cadmium, mercury, arsenic, and chromium in muscle, liver and gills of the gray mullet, Liza aurata in southern part of the Caspian Sea. The samples were collected during sexual maturity (in the fall) and sexual rest (in the spring). The mean concentration of lead, cadmium, mercury, arsenic, and chromiu...
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Heavy metals found in urban air with its toxic effects have a direct impact on human health. Selection of appropriate tree species and shrub refining capacity of heavy metals in urban areas can greatly reduce the toxic effects of these materials. This study aimed to identify the most suitable tree and shrub species of broadleaf evergreen, deciduous and coniferous refinement of heavy metals lead...
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