Chinese products have been riddled with safety issues in the past year, including the current tainted milk scandal, poisonous pet food and toys with high lead levels, among other problems.

过去一年时间里，中国产品一直被安全问题所困扰，包括被污染的宠物食品、含铅玩具以及最近的毒牛奶事件等等。

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High levels of lead could damage the intellectual development of children.

高含铅量会损害儿童的智力发育。

《柯林斯英汉双解大词典》

The test results show that one of the products is mold infested and the other product contains levels of lead that are too high.

测试结果表明，其中一种产品受到霉菌感染，而另一种产品含铅量过高。

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The male brains, especially nerve cell rich parts of the brain associated with thinking and remembering, seemed to have sustained more long term damage from high lead levels than the brains of the young women.

VOA: standard.2009.12.19

Eating a high fat diet but one that's low in cholesterol can still potentially lead to high cholesterol levels.

食用高脂但低胆固醇的食物,仍可导致胆固醇含量偏高

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

More than one thousand children living nearby were reported to have high levels of lead in their blood.

VOA: special.2009.08.31

These high lead levels may harm both the mother and developing foetus.

CNN: Calcium for Moms-to-Be

People were also eating far too much saturated fat, which can lead to high cholesterol levels, and consequently heart disease.

BBC: Britons failing to reach five-a-day fruit and veg goal

In declaring the emergency, Peru's Environment Ministry said the contamination included high levels of lead, barium and chromium as well as petroleum-related compounds.

NPR: Peru Declares Amazon Oil Contamination Emergency