Ma sulfide aali mumaanzi alakonzya kubola, mpawo agwisya H₂S mumuwo. Kuyoya bunji bwa H₂S kulakonzya kucheta kufweba, kufwusa, kukatazyigwa kuyoya, kufweba, antoomwe azintu zikola zipati. Kukkala mumuwo uulaa 15-30 mg/m3 kulakonzya kuleta bulwazi bwakuzimba meso akunyonganya nsinga zyameso. Kuyoya H₂S kwachiindi chilamfu kulakonzya kuswaangana a cytochrome, oxidase, disulfide bonds (-SS-) muma protein ama amino acid, kunyonganya nzila zya oxidation mumaseelo akupa kuti maseelo atabi amuuya mubotu, zikonzya kujaya muntu.

Kabunga kamwi akamwi ka sodium sulfide kalainda mukulanga-langa zibeela zyawo akujana busofwaazi kuchitila kuti kutabi ntenda yabusofwaazi kuzwa aawo mpobuzwa. Dina aawa kuti ujane lugwasyo lwabasyaazibwene.