ABSTRACT
Hydrogen sulfide (H2S) is a well-recognized toxic gas and environmental hazard. This chapter provides an update of our current understanding of H2S-induced toxicity with a special emphasis on research of interest to inhalation toxicologists. We also discuss the role H2S has as a gaseous biological molecule and putative neurotransmitter. No attempt has been made to provide an exhaustive review, and wherever possible references to recent research and review articles are provided.
