Complaints were mostly related to the odour of hydrogen sulfide gas.
Hydrogen sulfide gas is rapidly absorbed through the lung.
EFFECTS ON MAN Adequate systematic studies of the relationship between hydrogen sulfide exposure and health status in the general population have not been carried out.
Acute hydrogen sulfide intoxication is a dramatic, often fatal event.
Controlled exposure of human subjects to concentrations of hydrogen sulfide gas exceeding about 75 mg/m3 (50 ppm) has been deemed to involve excessive risk because of the possibility of injury to the lungs (Sayers et al., 1925; National Research Council, USA, 1979).
(1962) Hydrogen sulfide intoxication.
In a document prepared by the National Research Council of the National Academy of Sciences of the USA (National Research Council, USA, 1979), the observation was made that application of the terms "acute", "subacute" and "chronic" to hydrogen sulfide exposure was both imprecise and misleading.
(1969) Preliminary air pollution survey of hydrogen sulfide.
" Acute intoxication: Effects of a single exposure [seconds- minutes]a to massive concentrations of hydrogen sulfide that rapidly produce signs of respiratory distress.
(1954) Hydrogen sulfide eye inflammation -- treatment with cortisone.
"Chronic hydrogen sulfide intoxication" has been applied by some authors to describe a prolonged state of symptoms resulting from a single or repeated exposure to concentrations of hydrogen sulfide that do not produce clear-cut manifestations of either acute or subacute illness.