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The importance of nickel (Ni) in the environment is an issue that is gaining broader recognition. While nickel is an element essential for plants, it is also a heavy metal. Nickel is a component of nine metalloenzymes, including urease, which participates in urea hydrolysis. It also helps some plants to protect themselves against pathogens and herbivorous insects. There are many sources of Ni in the...
Nickel is a metal of widespread distribution in the environment: there are almost 100 minerals of which it is an essential constituent and which have many industrial and commercial uses. Nickel and nickel compounds belong to the classic noxious agents encountered in industry but are also known to affect non-occupationally exposed individuals. The general population may be exposed to nickel in the...
This paper presents the occurrence, properties and origin of chromium, nickel and cobalt in environmental samples - soil, water and the atmosphere. Methods of determining the above-mentioned elements, as well as the ways of preparing environmental samples for chemical analyses were presented. The content of chromium, nickel and cobalt in the atmosphere, the naturally occurring waters and soil was...
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