الفهرس 
ContentsOnly 14 pages are availabe for public view
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Abstract
A problem that is met at present with greatest world concern is pollution and its impact on plant and animal life as human population multiply and industrialization increases and diversifies the problem of pollution of the environment becomes more critical heavy metals as cd,pb,hg and cr have received consider able attention over the years as a result of increased environmental burdens from industrial agricultural energy and municipal sources.