نتایج جستجو برای: heavy
تعداد نتایج: 125133 فیلتر نتایج به سال:
This Communication describes a prototype quantitative paper-based assay that simultaneously measures the levels of Pb(2+) and Hg(2+) in water. The assay requires only measurements of time to yield a quantitative readout, and the results are independent of sample volume, humidity, and sample viscosity.
Heavy metal pollution by natural factors is a world-wide phenomenon. Release of large quantities of heavy metals without handling proper processes that could decrease the concentration of such a material is a hassle that makes strains resistant to these heavy metals apart from entering into human food chain. In this research, wastewater of four firms in Guilan province such as Foolad, Risandegi...
Introduction: Heavy metals like Cadmium, Arsenic, Lead and Mercury are regarded as the most common heavy metals in the environment which can enter the food chain via various routs and may cause a great number of disorders within humans. Besides these heavy metals, such metals as Zinc and Copper can be dangerous in excess amounts. Edible salt, as one of the main additives, can contain these heav...
This study aims at investigating the effect of distance from source, species type and soil physical chemical properties on the absorption ability of heavy metals by tree species around the Nahavand cement factory. In the present research, soil and tree leaf (Pseudoacacia L, Populus nigra L, Elaeagnus angustifolia L, Fraxinus excelsior and Thuja orientalis L) samples were taken from 300, 500, 80...
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