What is H 2 S?

H₂S, or hydrogen sulfide, is a colorless gas known for its characteristic foul odor, reminiscent of rotten eggs. It is produced naturally through the breakdown of organic matter and is also a byproduct of certain industrial processes, such as petroleum refining. While it occurs in low concentrations in the environment, H₂S is highly toxic and can be lethal at higher levels, affecting the respiratory system and nervous system. Safety precautions are essential when handling this gas due to its hazardous nature.