Reference values for environmental pollutants in the German population are established continuously by the Human Biomonitoring Commission of the German Federal Environmental Agency. The reference values (defined as 95th percentile) are usually derived from results of the German Environmental Surveys (GerES). However, current reference values for children are lacking since GerES II conducted in 1990/92 and additionally the first German Environmental Survey on Children (GerES IV) will not be finished until the end of 2006. As an interim solution, the commission derived in 2005 reference values for children aged 6-12 years from a survey performed in south-west Germany in 2002/03 (508 children) and the pilot study for GerES IV 2001/2002 (252 children). A new reference value of 15 microg/l for children was derived for arsenic in urine. The reference values for cadmium in whole blood (0.5 microg/l) and for cadmium in urine (0.5 microg/l) were confirmed. The following reference values were lowered: for lead in blood from 60 to 50 microg/l, for mercury in whole blood from 1.5 to 1.0 microg/l and for mercury in urine from 1.4 to 0.7 microg/l.

中文翻译：

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儿童血液或尿液中砷，镉，铅和汞的修订参考值和新参考值：验证环境医学中人类生物监测数据的基础。

德国人口中环境污染物的参考值是由德国联邦环境局的人类生物监测委员会不断建立的。参考值（定义为95％）通常来自德国环境调查（GerES）的结果。但是，自1990/92年进行的GerES II以来，目前缺少儿童的参考值，此外，直到2006年底才完成第一次德国儿童环境调查（GerES IV）。作为临时解决方案，该委员会于2005年成立参考2002/03年德国西南部的一项调查（508名儿童）和GerES IV 2001/2002（252名儿童）的初步研究得出的6-12岁儿童的参考值。儿童尿中砷的新参考值为15微克/升。确定了全血中镉的参考值（0.5微克/升）和尿中镉的参考值（0.5微克/升）。降低了以下参考值：血液中的铅从60到50微克/升，全血中的汞从1.5到1.0微克/升，尿液中的汞从1.4到0.7微克/升。