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TeachMeFinance.com - explain non-point source (NPS) pollution non-point source (NPS) pollution The term 'non-point source (NPS) pollution' as it applies to the area of water can be defined as 'pollution discharged over a wide land area, not from one specific location. These are forms of diffuse pollution caused by sediment, nutrients, organic and toxic substances originating from land-use activities, which are carried to lakes and streams by surface runoff. Non-point source pollution is contamination that occurs when rainwater, snowmelt, or irrigation washes off plowed fields, city streets, or suburban backyards. As this runoff moves across the land surface, it picks up soil particles and pollutants, such as nutrients and pesticides'. About the author
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