Health risks in children at various bloodlead levels, in micrograms per liter.
不同的血铅水准对儿童健康的风险有别，以下数值单位为微克每升。
2
Officials for gala say "red carpet is going to be rolled out"; No Country, Bloodlead noms.
奥斯卡主办方说“红地毯将被铺开”，《老无所依》《未血绸缪》在提名中领跑。
3
The mean bloodlead levels in the 12-to-19-year-olds were 1.5 micrograms per deciliter in 1991 to 1994 and 1.1 micrograms per deciliter from 1999 to 2000, researchers say.