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. 2024 Nov 23;17(23):5733. doi: 10.3390/ma17235733

Table 1.

Natural (re)sources of H2S with relevant sulfide concentrations.

Name Country H2S Content (mM L−1) Literature
Solec-Zdrój Poland 23.1 [23]
Legacy gas wells in southwestern Ontario Canada 11.7 [24]
Ust’Kachka Resort Spring, Perm Krai Russia 7 [25]
Bad Nenndorf Germany 2.4 [26]
Mamlaha Iraq 2.3 [27]