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汽油是多种烃类的混合物,它的成份随着产地和生产方法不同而有差异,其中主要含有脂肪族饱和烃、不饱和烃、少量的芳香族烃及各种硫化物杂质等。其毒性大小与其所含的不饱和烃、芳香烃及硫化物的多少有密切关系。此外,为了改进汽油的性能,常加入各种添加剂,如为了改善某些动力汽油的防爆性能,常加入四乙基铅等抗爆剂,加入四乙基铅的汽油,称为乙基汽油,它的毒性比溶剂汽油更大些。
Gasoline is a mixture of a variety of hydrocarbons, its composition varies with the place of production and production methods, which mainly contain aliphatic saturated hydrocarbons, unsaturated hydrocarbons, a small amount of aromatic hydrocarbons and various sulfide impurities. Its toxicity and its contained unsaturated hydrocarbons, aromatic hydrocarbons and sulfide are closely related. In addition, in order to improve the performance of gasoline, often add a variety of additives, such as in order to improve some of the performance of gasoline explosion-proof, often joined the anti-detonators such as tetraethyl lead, adding tetraethyl lead gasoline, called ethyl gasoline, It is more toxic than solvent gasoline.