Environmental pollution, increasing with each passing year and inflicting grave and irreparable injury to the world. Environmental pollution is of different types namely air, water, soil, noise and light-weight. These cause damage to the living system. These studies are written in the form of articles and published in journals. 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