本文综述了化学致癌剂及化学致癌机理的近代研究状况。
The recent situation for the researches on chemical carcinogens and on the mechanism of chemical carcinogenesis is reviewed in this paper.
—深色染发剂：已被证明含有致癌化学物质煤焦油。
Dark hair dyes: They are known to contain coal tar, a carcinogenic chemical.
就连饮食中的苏打也有危险，因为其中为弥补缺失的糖分而添加的化学剂就有致病致癌的危险。
Even diet soda carries risks, as it's made with a lot of chemicals to make up for the lack of sugar, and these have been linked to diseases and cancers.
美国全国癌症研究会在其网站上指出，甜叶菊甙的主要化学成分在实验室可以被转化为能改变基因的物质，而要确定这种甜味剂能否导致癌症还需进一步研究。
The US National Cancer Institute says on its website that the main chemical in stevioside can be converted in a laboratory into a substance that alters genes.
美国全国癌症研究会在其网站上指出，甜叶菊甙的主要化学成分在实验室可以被转化为能改变基因的物质，而要确定这种甜味剂能否导致癌症还需进一步研究。
The US National Cancer Institute says on its website that the main chemical in stevioside can be converted in a laboratory into a substance that alters genes.
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