Abstract: . . .  pathway (Sinclair and Knight 1994). The symptoms are an initial stimulation of respiration resulting in very rapid breathing and subsequent depletion of carbon dioxide in the blood. This leads to respiratory inactivity than may spontaneously reverse if the depletion has not gone too far. However, if breathing does not spontaneously < . . .
. . .  preferentially than other gases in the air is in an enclosed area, where there is no wind. The toxic effects of H 2 S to human and animals vary according to dosage and these are summarised in table 5.5. Page 33 Socio-Economic and Environmental Impacts The Socio-Economic and Environmental Impact of Geothermal Energy on the Rural Poor in Kenya 25 Table 5.5 Effects of H 2 S on Human Beings and Animals Concentrations (ppm) Effects Below 1 Offensive odour 1 – 10 Occupational exposure limit. Breathing apparatus . . .
. . .  effect on the whole nervous system by inhibiting the enzymes cytochrome oxidise, which is involved in the aerobic metabolic pathway (Sinclair and Knight 1994). The symptoms are an initial stimulation of respiration resulting in very rapid breathing and subsequent depletion of carbon dioxide in the blood. This leads to respiratory inactivity than may spontaneously reverse if the depletion has not gone too far. However, if breathing does not spontaneously < . . .
. . .  gases in the air is in an enclosed area, where there is no wind. The toxic effects of H 2 S to human and animals vary according to dosage and these are summarised in table 5.5. Page 33 Socio-Economic and Environmental Impacts The Socio-Economic and Environmental Impact of Geothermal Energy on the Rural Poor in Kenya 25 Table 5.5 Effects of H 2 S on Human Beings and Animals Concentrations (ppm) Effects Below 1 Offensive odour 1 – 10 Occupational exposure limit. Breathing apparatus required 10 – 20 . . .
. . .  air is in an enclosed area, where there is no wind. The toxic effects of H 2 S to human and animals vary according to dosage and these are summarised in table 5.5. Page 33 Socio-Economic and Environmental Impacts The Socio-Economic and Environmental Impact of Geothermal Energy on the Rural Poor in Kenya 25 Table 5.5 Effects of H 2 S on Human Beings and Animals Concentrations (ppm) Effects Below 1 Offensive odour 1 – 10 Occupational exposure limit. Breathing apparatus required 10 – 20 Ceiling of occupation . . .
. . .  Breathing will stop and death will result if no resuscitation is done. 700 – 1,000 Causes immediate unconsciousness. Death or permanent brain damage may result unless rescued promptly 1,000 – 2,000 Immediate collapse with respiratory failure Source: Geothermal Energy Development. KenGen Report No. Geo/8/009b Toxic effects of H 2 S have been classified into three categories, namely: • Acute • Sub-acute • Chronic. Acute intoxication refers to effects of a single exposure, to a massive dose of hydrogen . . .
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