硫化氫為無色、易燃，具有腐蛋味的氣體，它常出現在火山氣體、硫磺溫泉、蛋白的分解物和各種含硫的化合物中。因為易溶於水，所以空氣中之硫化氫相當容易溶入眼睛和呼吸器官的黏膜組織中之水份而被人體吸收。在國內過往文獻報告中，硫化氫中毒最常見於溫泉槽或下水道等密閉空間作業環境。本案例為廢水處理作業員，雖是在開放性空間作業，但仍因監視系統故障而導致吸入過量的硫化氫氣體。除了意識喪失之外，又陸續併發急性肺水腫、急性腎衰竭與敗血症。經過支持性療法後，個案的意識及腎功能、肺功能恢復正常，但仍有輕度的高頻聽力損傷。本文的目的是希望藉此病例及文獻之回顧，能使醫師對硫化氫的危害能進一步的了解，在臨廠服務時，能對於相關工作性質的職業環境能更加注意，以避免危害。

Hydrogen sulfide (H2S) is a colorless, flammable gas with a characteristic rotten-egg odor and is found in volcano gas emissions, sulfur springs, bacterial decomposition of proteins, and various sulfur-containing products. It can be absorbed easily by eye or respiratory mucus membrane due to its water solubility. There were several hydrogen sulfide intoxication reports in spring reservoir tank-cleaning workers. The case presented in this paper is a 35-year-old male who is a wastewater
treatment worker. Due to malfunction of monitor, he was poisoned by hydrogen sulfide. Conscious loss occurred first and then followed by acute pulmonary edema, acute renal failure and sepsis.
After supporting care, his conscious, pulmonary and renal function were recovered with mild bilateral high-pitch hearing impairment. With this case and other relevant documents, this article intended to provide doctors with further knowledge on hydrogen sulfide intoxication.