chemical elements (numbering more than 40) with atomic weight more than 50 atomic units. Concept H.m. in many aspects coincides with a concept of “mictoelements”, but also includes separate elements of heightened concentrations. Among H.m. there are lead, zinc, cadmium, mercury, molybdenum, manganese, nickel, tin, cobalt, titanium, copper, vanadium, etc.
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По запросу «Heavy metals» — результатов: 2
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1– accumulation of a substance by an animal which preys on other animals that have themselves already accumulated such substance in its tissue. This process can bring to a