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Social-Ecological Systems Meta-Analysis Database: Variables

Variable TypeCategorical
Variable Component TypePollutant
Variable KindComponent
ThemeSpatial (learn about themes)
QuestionIs this a point-source or nonpoint-source pollutant?
Select OptionsPoint source, Nonpoint source
ImportanceThe importance of this variable lies in the different challenges in governing point source non-point source polluters and in abating point-source versus non-point source pollutants (Shortle and Horan 2001). Non-point source pollutants are more difficult to track/control since pollution sources are usually spread out geographically.
DefinitionA point-source pollutant is emitted from a relatively small number of high-emitting sources. A non-point source pollutant is emitted from many smaller sources (e.g. Runoff from agricultural land).

Theory Usages

TheoryValue Used

Associated Studies

Study Citation

Component Usages

ComponentValue UsedExplanation
Ozone Depleting SubstancesNonpoint source
Rhine Point source pollutantsPoint sourceHeavy metals generated by chemical industry
Rhine Non-point source pollutantsNonpoint source