In American the meaning of the name Amy is: Beloved. The name Amy is a French baby name. In French the meaning of the name Amy is: Dearly loved; Beloved. From the Old French Amee, which derives from the Latin amatus meaning loved. In common use after publication of American Louisa May Alcott's 'Little Women'.
There are two main types of pollution, point source pollution and nonpoint source pollution. Point source pollution comes from one source (you can easily point to it) like a factory or waste water treatment plant.
Municipal sewage treatment plant point sources can contribute pollution in the form of oxygen-depleting nutrients and in the form of pathogens that cause serious health hazards in drinking water and swimming areas. Industrial point sources can contribute pollution in the form of toxic chemicals and heavy metals.