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Why is hydrogen sulfide dangerous?

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A labeled diagram highlights sulfur's position on the periodic table, showing its atomic number 16, symbol S, atomic weight range, electron configuration, and classification as a solid, strongly acidic, orthorhombic nonmetal at room temperature. — sulfur Chemical properties of sulfur.

Hydrogen sulfide is a colorless, flammable, and extremely poisonous gas. It is considered dangerous because it acts as a potent irritant to the skin, eyes, nose, throat, and lungs.123

Inhalation of the gas can lead to severe health complications, including chest pain, shortness of breath, pneumonia, and lung edema. Additionally, exposure to hydrogen sulfide is associated with systemic symptoms such as headaches, dizziness, nausea, and vomiting. Because of its high toxicity, it is essential to handle this compound with extreme caution to prevent life-threatening exposure.3