olfactometers
type: Concept
preferred label: بویایی‌سنج‌ها @fa
related: odour emission

odour emission
type: Concept
alternative label: odor emission
broader: pollution
preferred label: انتشار بو @fa
related: olfactometers
related: odours

pollution
type: Concept
narrower: odour emission
preferred label: آلودگی @fa

odours
type: Concept
preferred label: بوها @fa
related: odour emission