Hydrogen sulfide is an extremely dangerous gas that can cause fatal consequences in a very short period of exposure. This risk is particularly notable in environments like manure pits and sewage systems, where the gas can accumulate. Due to its rapid lethality, safety organizations recommend that individuals working in these settings wear specialized breathing equipment to protect themselves from potential poisoning.

In her book "Gulp: Adventures on the Alimentary Canal," author Mary Roach highlights the importance of understanding hazardous substances like hydrogen sulfide and the precautions necessary to ensure safety in environments where such dangers exist. The urgent need for protective gear in such situations underscores the serious risks workers face when handling materials that can release harmful gases.