镉、铅、汞和锰的检测都表明处于正常值范围。
Tests for cadmium, lead, mercury and manganese have shown levels within the normal range.
孕妇和幼儿是最易受损的人群，因为铅极易通过胎盘进入胎儿大脑，并且可以干扰其正常发育。
Pregnant women and young children are particularly vulnerable to exposure because lead easily crosses the placenta and enters the fetal brain, where it interferes with normal development.
结论急性染铅可使磷酸化的ERK2含量在一定的时间内降低，经过一段时间后显示向正常恢复的趋势。
Conclusion Acute lead exposure could make the content of phosphorylated ERK2 decrease in some time, then returned normally after a stage of time.
土壤铅超标不仅影响植物体的正常生长，而且通过食物链危害人类健康。
Soil lead exceeding the allowed standard not only affects the plant's normal growth, but also harms the human health through the food chain.
这些材料中的铅在牙冠和器具的正常使用下几乎是不会渗出来的。
Lead found in these materials is subject to very little leaching over the life of an appliance or crown.
然而，最令比泰吃惊的是在头发标本中发现比正常要高得多的铅含量，这为铅中毒。
However, what struck Beattie most were abnormally high levels of lead found in samples of hair, indicating acute lead poisoning.
矿石铅同位素组成稳定，为正常普通铅，矿石铅来源于早白垩世上地壳物质部分熔融形成的岩浆。
The Pb isotopic composition of ore sulfides is stable and the ore lead is ordinary common lead. Ore lead derived from magma, which came from partial melting of the upper crust in Early Cretaceous.
与正常土壤比较，该区土壤铅、镉、锌、砷含量有不同程度的增加，铜、 镍、铬含量与之持平。
Compared to background content of heavy metal, concentration of lead, cadmium, zinc and arsenic was higher than it, and evident accumulation trend already appeared consequently.
与正常土壤比较，该区土壤铅、镉、锌、砷含量有不同程度的增加，铜、 镍、铬含量与之持平。
Compared to background content of heavy metal, concentration of lead, cadmium, zinc and arsenic was higher than it, and evident accumulation trend already appeared consequently.
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