نتایج جستجو برای: trace elements
تعداد نتایج: 331396 فیلتر نتایج به سال:
concentrations of elements (as, co, cu, ni, mo, pb, v, cd, cr and zn) are studied in the surface sediments of bakhtegan lake, northwest of nyriz city, iran, to assess metal contamination. the average abundance order of trace elements content in bakhtegan lake sediments is cr>ni> v> zn> cu> co> as> pb> mo>cd. the comparison of trace elements concentration in bakhtegan lake sediments with toxicol...
In the one hundred years since the birthday of Academician W. J. Vernadsky, in whose honour this Geochemical Conference is being held, the population of our world has grown from about 1,250 million to not far short of 3,150 million, an addition of some 1,900 million persons. Thus, there are approximately two and one half times as many people in the world today as there were when Academician Ver...
Introduction Conclusions References
A number of reports have demonstrated that human hair can be used as a reliable monitor of human exposure to toxic elements in the community or working environment.1-8) In these reports, hair samples were generally collected from inhabitants of different communities or from workers of different industrial firms who had been exposed to a variety of environmental pollutants. In most cases, hair a...
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