Soil Source Speciation Concentration (mg/kg dw) Test Bioaccessibility Reference Soil 4 mountain types mine waste - 5,4-17 DIN stomach 2,8-54% stomach and intestine 8,8-41% (1) Soil 12 types wood preservatives - 19-34 DIN stomach 2,4-22% stomach and intestine 1,9-22% (1) Soil 22 types - - 11-110 DIN stomach and intestine 8-54% (2) Soil 3 types waste and urban impact - 5,7-23 DIN⁵¹ stomach 9,5-85% stomach and intestine 7,8-90% (1) Soil 10 types mine waste oxide 1.800-7.300 PBET stomach 11-28% stomach and intestine 11-24% (6) Soil - - 190-900 PREP stomach and intestine <0,2-2,0% (10)