pollution
preferred label: آلودگی @fa
type: Concept
related: sewage

waste disposal
preferred label: دفع پسماند @fa
type: Concept
related: sewage

pollutant
preferred label: آلاینده @fa
type: Concept
related: sewage

sewage
related: pollutant
related: pollution
related: waste disposal
preferred label: فاضلاب @fa
type: Concept