Heavy metal toxicity refers to the adverse effects due to the accumulation of toxic heavy metals in human body. Poisonous heavy metals are zinc, arsenic, bismuth, antimony, uranium, vanadium etc. The excessive dose of heavy metal accumulation is harmful to human body. Heavy metal toxicity causes serious health defects in adults and children in case of long term exposure. The source of heavy metal toxicity is toxic farming, chemical and toxic exposure in industries, etc.
The impact factor of journal provides quantitative assessment tool for grading, evaluating, sorting and comparing journals of similar kind. It reflects the average number of citations to recent articles published in science and social science journals in a particular year or period, and is frequently used as a proxy for the relative importance of a journal within its field. It is first devised by Eugene Garfield, the founder of the Institute for Scientific Information. The impact factor of a journal is evaluated by dividing the number of current year citations to the source items published in that journal during the previous two years.
Last date updated on September, 2014