The sulfhydryl (thiol) group (SH) of cysteine is responsible for the chemical properties of the whole GSH molecule (L-gamma-glutamyl-Lcysteinylglycine).
This paper introduces experiment clearing away hydrosulfuric and mercaptan in waste gas from industry and o-zone, retention period, catalyzer and so on influence on removal rates.
The results show experiment have a higher removal rate and the last oxidize product of hydrothion and mercaptan is condensed state sulfide, could not be sulfur dioxide.
In doing so, they also produce gases like carbon dioxide and methane, sulfurous compounds called mercaptans, and hydrogen sulfide, which eventually... pass.
The actual methane is coming out of the well. It has now what's causing people to be sick. It is odourant, mercaptan, and that odour is what's causing people to become sick.