Environmental monitoring defined as the processes and activities including to characterise and monitor the quality of the environment. It is used in the preparation of environmental impact assessments, and in some cases who involves human activities those carrying a risk of harmful effects on the natural environment. All strategies and monitoring programmes have valid reason and are often designed in a way to establish the current status of an environment and to establish trends in environmental parameters. 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.