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by tim333 166 days ago
Effects of hydrogen sulphide:

>Acute inhalation exposure to high concentrations may result in collapse, respiratory paralysis, cyanosis, convulsions, coma, cardiac arrhythmias, and death within minutes.

>Exposure to low concentrations may irritate the eyes and respiratory tract, resulting in sore throat, cough, and dyspnoea.

I guess they were at the low end.