|One of the best issues that the planet is facing these days is that of environmental pollution, increasing with each passing year and inflicting grave and irreparable injury to the world. Environmental pollution consists of 5 basic kinds of pollution namely air, water, soil, noise and light-weight. High-impact journals are those considered to be highly influential in their respective fields. 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.