This research guide will direct you to measure the quality of a journal using different metrics: Impact factor, rankings, h index. Always remember that most metrics are specific to a particular field. For example if you look in SJR (Scientific Ranking of Journals) you will be asked to select the subject area under consideration.
Example Environmental Science and Technology has the following subject categories.
| Subject Area and Category | Chemistry Chemistry (miscellaneous) Environmental Science Environmental Chemistry Medicine Medicine (miscellaneous) |
