还有一个要担忧的问题：肉类的油脂滴落在热烫的煤炭、石头或者炉子上会产生另一种致癌物质——多环芳烃。

There's also concern that fat dripping from meat onto hot coals, stones or burners creates additional carcinogens called polycyclic aromatic hydrocarbons.

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这些结果具有重要意义，因为多环芳烃二醇环氧化物极易与DNA反应，进而导致变异，因此被视为香烟烟雾中所含多种多环芳烃中最重要的致癌物质。

These results are significant because PAH diol epoxides react readily with DNA, induce mutations, and are considered to be ultimate carcinogens of multiple PAH in cigarette smoke.

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有毒的matagenic和致癌物质PAH二醇环氧化合物均来源于多环芳香烃(PAH)，它是导致大多数肺癌的罪魁祸首。

Toxic matagenic and carcinogenic PAH diol epoxides can be derived from PAHS, which are responsible for most cases of lung cancer.

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