Sodium sulfide ni yɔɔ nu mli lɛ ekomɛi ji H2S ni mli ewo muji, HS−, S2−, kɛ agbɛnɛ dade sulfides ni mli edɔ ni acid yɔɔ mli ni yɔɔ nibii ni mli wa ni etsi ehe lɛ amli, kɛ sulfides ni bɛ wala mli kɛ nibii ni wala yɔɔ mli ni bɛ tsakpaa. Bei pii lɛ, nu ni sulfides yɔɔ mli lɛ feɔ tamɔ ediŋŋ ni eyɛ ŋmɔlɔ waa, titri lɛ yɛ H2S gas ni yaa nɔ ejieɔ lɛ hewɔ. Adesai baanyɛ ana hydrogen sulfide ni yɔɔ kɔɔyɔɔ mli lɛ mli yɛ be mli ni eshɛɛɛ 8 μg/m3, yɛ be mli ni H2S ni yɔɔ nu mli lɛ shishijee ji 0.035 μg/L.Sodium sulfide.

Sodium sulfide nitoohei yɛ Qingdao, Tianjin, kɛ Longkou lɛlɛdaamɔhei lɛ, ni abaanyɛ akɛmaje amrɔ nɔŋŋ ni eyɛ jeŋ muu fɛɛ mlijaa ni yɔɔ shiŋŋ. Nyɛɛ biɛ koni onine ashɛ nyɔmɔwoo nɔ.