KnowraSewageLinked fromLinked fromThe 4 pages that link to Sewage, each with the reason it gives.All 4Broader topic 1Related 3EutrophicationRelated: Untreated or insufficiently treated sewage adds nutrients to receiving waters.Water pollutionRelated: Untreated or poorly treated sewage adds pathogens and nutrients to water bodies.SanitationBroader topic: Safe collection and treatment of sewage are central tasks of urban sanitation.Nutrient pollutionRelated: Insufficient treatment can leave nitrogen and phosphorus in discharges.