SNIP measures contextual citation impact by weighting citations based on the total number of citations in a subject field.
SJR is a prestige metric based on the idea that not all citations are the same. SJR uses a similar algorithm as the Google page rank; it provides a quantitative and a qualitative measure of the journal’s impact.
The Impact Factor measures the average number of citations received in a particular year by papers published in the journal during the two preceding years.
© Thomson Reuters Journal Citation Reports 2015
To calculate the five year Impact Factor, citations are counted in 2014 to the previous five years and divided by the source items published in the previous five years.
© Journal Citation Reports 2015, Published by Thomson Reuters
Science of the Total Environment is an international journal for publication of original research on the total environment, which includes the atmosphere, hydrosphere, biosphere, lithosphere, and anthroposphere.
The total environment is characterized where these five spheres overlap. Studies that focus on at least two or three of these will be given primary consideration. Papers reporting results from only one sphere will not be considered. Field studies are given priority over laboratory studies. The total environment is studied when data are collected and described from these five spheres. By definition total environment studies must be multidisciplinary.
Examples of data from the five spheres are given below:
Subject areas may include, but are not limited to:
• Agriculture, forestry, land use and management
• Air pollution quality and human health
• Contaminant (bio)monitoring and assessment
• Ecosystem services and life cycle assessments
• Ecotoxicology and risk assessment
• Emerging fields including global change and contaminants
• Environmental management and policy
• Environmental remediation
• Environmental sources, processes and global cycling
• Groundwater hydrogeochemistry and modeling
• Human health risk assessment and management
• Nanomaterials in the environment
• Noise in the environment
• Persistent organic pollutants
• Plant science and toxicology
• Remote sensing
• Stress ecology in marine, freshwater and terrestrial ecosystems
• Trace metals and organics in biogeochemical cycles
• Waste and water treatment
The editors discourage submission of papers which describe results from routine surveys or monitoring programs, studies which are local in scope, laboratory experiments, hydroponic or pot studies measuring biochemical/physiological endpoints, food science studies, screening of new plant species for phytoremediation, testing known chemicals in another setting, and experimental studies lacking a testable hypothesis.
The abstract, highlights and conclusions of papers in this journal must contain clear and concise statements as to why the study was done and how readers will benefit from the results. Articles submitted for publication in Science of the Total Environment should establish connections among research findings with implications for environmental quality, ecological health, and/or human health.