نتایج جستجو برای: trace lead determination
تعداد نتایج: 641917 فیلتر نتایج به سال:
16 The common practice of remediating metal contaminated mine soils with compost can reduce 17 metal mobility and promote re-vegetation, but the effect of introduced or colonising 18 earthworms on metal solubility is largely unknown. We amended soils from an As/Cu (1150 19 mgAs kg and 362 mgCu kg) and Pb/Zn mine (4550 mgPb kg and 908 mgZn kg) with 0, 20 5, 10, 15 and 20 % compost and then intro...
The concentrations of major (Si, Al, Ca, Fe, and K) and minor (Cd, Mn, Ni, Pb, U, Zn, Co, Cr, As, Cu, Rb, Sr, and Zr,) elements in the surficial sediments were studied in an attempt to establish their concentration in the Bengal coast. It was revealed that the majority of the trace elements have been introduced into the Bengal marine from the riverine inflows that are also affected by the impac...
Seasonal variation in trace metal contamination in surface sediments was studied through high resolution profiles assessed monthly by DGT probes in muddy sediments of the North Sea. General parameters such as pH, temperature, dissolved oxygen and sulfides were also recorded to estimate their role in the speciation of trace metals. Experimental data were included in a thermodynamic equilibrium m...
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