This is because it can cause miscarriage or serious birth defects, such as deafness and heart problems.

这是因为它能引起流产或是严重先天缺陷，如耳聋和心脏问题。

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Lead in air, mercury in food and other chemicals can result in long-term, often irreversible effects, such as infertility, miscarriage, and birth defects.

空气中的铅、食品中的汞和其它化学品可造成长期并且通常不可逆转的结果，例如不孕症、流产和出生缺陷。

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Prior studies have indicated that babies born to older women have higher risks of birth defects, low birth weight and certain chromosome problems, such as Down syndrome.

以往的研究者已经指出过，大龄孕妇生育的孩子极易患出生缺陷、出生体重低、类似先天痴呆的某些染色体疾病。

youdao

Risk factors for epilepsy such as birth defects and poor nutrition are known to be more common among deprived groups.

BBC: Brain image

Dioxin is linked to cancer, skin disease and reproductive problems such as miscarriages and birth defects.

CNN: Warning -- this garbage is dangerous

The legislation has created such absurdities as warnings of birth defects from lead bullets.

FORBES: Toxic Avengers