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硫化氢是一种无色而有强烈臭味毒性极大的气体,比重为空气的1.19倍,故在通风不良的情况下,会聚积于环境周围低下处,如深洞、隧道口或下水道之中。空气中的硫化氢污染多来源于石油精炼、天然气、硫化染料、橡胶及使用动物原料的工业生产过程,或者来源于有机物的腐败。如硫化氢在空气中含量在百分之几以上,就可能使人在几秒钟内突然昏倒,甚至死亡,而事先毫无中毒症状。低浓度的会刺
Hydrogen sulphide is a colorless and strongly odorous toxic gas with a specific gravity of 1.19 times that of air, so it accumulates in low ambient areas such as deep holes, tunnels or sewers in poorly ventilated conditions in. Hydrogen sulfide pollution in the air and more come from the oil refining, natural gas, sulfur dyes, rubber and animal raw materials used in industrial processes, or from organic corruption. Such as hydrogen sulfide in the air content of more than a few percent, it may make people suddenly collapsed in a few seconds, or even died, without prior symptoms of poisoning. Low concentrations of thorns