Point source pollution (e.g. municipal sewage treatment plant and industrial plant, intense evapora- tion in shallow aquifers, degradation of water sources in areas located in geo- thermal/volcanic fields, and rock oxidation) is a single identify localized source while non-point source pollution (diffuse sources such as human land use, land use changes, chemical reactions of elements in the air or in the wa- ter and pollutes runoff from agricultural areas draining into a river) is cha- racterized by multiple discharge point.