Biomonitoring, an important tool to support decisions in environment and health policy making, will become increasingly important in the next decade. In special cases, biomonitoring becomes important in individual diagnostic situations. A cooperative intitiative of 27 European countries (COPHES, a study to Coordinate and Perform Human Biomonitoring on a European Scale) is presently being launched. Interpretation of biomonitoring results requires biological, medical, and statistical education and knowledge; we demonstrate a recently developed tool incorporated into ALLUM (www.allum.de; http://allum.zsf.jcu.cz and polishallum. zsf.jcu.cz) which may prove helpful in instruction of medical and lay people and in interpreting human biomonitoring results.