Harm of hydrogen sulfide gas to humans
Kyushu Space explains the harm caused by the difference in hydrogen sulfide gas concentration
Hazard to human body at various concentrations of hydrogen sulphide gas:
Gas concentration (PPM)
Impact on the human body
0.13
Minimum perceived odor concentration
4.60
Detectable concentration with moderate odor
10
Start to stimulate the eye, allowable exposure, exposure for 8 hours (OSHA, ACGIH)
27
Strong unpleasant smell, can't stand
100
Cough, irritate the eye, may lose your sense of smell after 2 minutes
200-300
After one hour of exposure, obvious conjunctivitis (inflammation of the eyes) is stimulated by the respiratory tract
500-700
Lost consciousness, breathing stopped (suspended or suspended), so that death
1000-2000
Immediately lose consciousness, stop breathing and die within a few minutes, and immediately move to fresh air immediately, or die
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