What does H2S stand for?

The term H2S stands for hydrogen sulfide, which is a colorless, flammable gas known for its distinctive rotten egg odor. It is a toxic compound that poses significant health hazards, particularly in high concentrations, making it critical in safety discussions surrounding high hazard facilities. Recognizing H2S is important for professionals working in industries such as oil and gas, wastewater treatment, and mining, where exposure risk is prevalent.

Understanding the nature of hydrogen sulfide helps emphasize the necessity of implementing effective safety protocols and monitoring systems within high hazard environments to protect personnel and minimize exposure risks. The other options represent different compounds that do not accurately match the chemical formula H2S, which is specifically associated with hydrogen sulfide.