|Occupational Health and Safety
Hazardous Substances: Hydrogen Sulphide
Hydrogen sulphide can create ill-health effects if it is inhaled, swallowed, or if it comes in contact with eyes, skin, nose or throat.
Inhalation of high concentrations of hydrogen sulphide vapor may cause loss of consciousness and death. Inhalation of lower
concentrations may cause headache, dizziness, fatigue, irritability, insomnia and upset stomach. Exposure to hydrogen sulphide can
cause temporary loss of the sense of smell, and irritation of the eyes, nose, or throat.
Prolonged exposures to low concentrations may cause bronchitis, pneumonitis, runny nose, and sore throat.
Repeated exposure results in increased susceptibility so that eye irritation, cough and systemic effects may result from
concentrations previously tolerated without any effect.
Local exhaust ventilation
General dilution ventilation
Personal protective equipment
ACGIH TLV 10 ppm (14 mg/m3).
U.S. NIOSH recommended 10ppm (14 mg/m3), 10 minute maximum
(See also CAW Fact Sheet on Sulphuric Acid)
Source: CAW Health, Safety & Environment Department