Also, PAHs may affect the fetus' DNA directly.

多环芳烃同样对胎儿的DNA产生直接影响。

youdao

In urban areas motor vehicles are a major source of PAHs.

在城市地区机动车辆是多环芳烃的主要来源。

youdao

There is no evidence that the PAHs affected her daughter’s IQ.

没有证据证明 多环芳烃对她女儿的智力产生了影响。

youdao

The water leftover from the extraction process, known as tailings, contains arsenic, mercury, napthenic acids and polycyclic aromatic hydrocarbons (PAHs).

BBC: Canada's 'dirty oil' challenge

Environmental scientist Kevin Timoney says he has seen data that suggest elevated levels of PAHs downstream of the plants, which he says could only be attributable to oil sands production.

BBC: Canada's 'dirty oil' challenge