Due　to　the　malodorous　effects　and　health　risks　of　volatile　sulfur　compounds　(VSCs)　emitted　from　wastewater　treatment　plants　(WWTPs),　odor　collection　devices　have　been　extensively　utilized;　however,　their　effectiveness　has　rarely　been　tested.　In　the　present　investigation,　the　characteristics　of　VSCs　released　in　a　WWTP　equipped　with　gas　collection　hoods　are　methodically　examined　by　gas　chromatography.　The　obtained　results　indicate　that　the　concentration　of　VSCs　in　the　ambient　air　can　be　substantially　reduced,　and　the　primary　treatment　unit　still　achieves　the　highest　concentration　of　VSCs.　Compared　to　WWTPs　without　odor　collection　devices,　the　concentration　of　H2S　in　this　WWTP　is　not　dominant,　but　its　sensory　effects　and　health　risks　are　still　not　negligible.　Additionally,　research　on　the　emission　of　VSCs　from　sludge　reveals　that　the　total　VSCs　emitted　from　dewatering　sludge　reaches　the　highest　level.　Volatile　organic　sulfur　compounds　play　a　dominant　role　in　the　component　and　sensory　effects　of　VSCs　released　by　sludge.　This　study　provides　both　data　and　theoretical　support　for　analyzing　the　effectiveness　of　odor　collection　devices　in　WWTPs,　as　well　as　reducing　the　source　of　VSCs.　The　findings　can　be　effectively　employed　to　optimize　these　devices　and　improve　their　performance.　©　2024