flatulence is the odor threshold for hydrogen sulfide.
what is the odor threshold for hydrogen sulfide?
flatulence
short-term, high-level exposure can induce immediate collapse, with loss of breathing and a high probability of death. if death does not occur, high exposure to hydrogen sulfide can lead to cortical pseudolaminar necrosis, degeneration of the basal ganglia and cerebral edema. although respiratory paralysis may be immediate, it can also be delayed up to 72 hours.





















































bullet::::- 0.00047 ppm or 0.47 ppb is the odor threshold, the point at which 50% of a human panel can detect the presence of an odor without being able to identify it.





















































bullet::::- 10 ppm is the osha permissible exposure limit (pel) (8 hour time-weighted average).
hydrogen sulfide
one of the main processes that occur in "b. wadsworthia" is hydrogen sulfide production, which is the product responsible for the bacterium's signature black dot. "b. wadsworthia" is able to produce hydrogen sulfide through its taurine desulfonation pathway using isethionate sulfite-lyase (isla). the bacterium converts taurine to hydrogen sulfide when it respires taurine. the production of hydrogen sulfide is connected to the human intestinal microbiota; although there are some benefits to hydrogen sulfide production in the gut like cardioprotection, hydrogen sulfide production also contributes to disease pathology. production of hydrogen sulfide has been linked to irritable bowel disease (ibd) by damaging the gut epithelium's mucus layer and to colorectal cancer. in addition, during treatments with antibiotics, hydrogen sulfide can aide opportunistic bacteria grow leading to antibiotic resistance. future research on controlling hydrogen sulfide production may help address "b. wadsworthia's" contribution to diseases.
bilophila wadsworthia