Analyte Reference Value Analyte Reference Value(pg/g) (pg/g)2,3,7,8-TCDD. 121 ± 43 1,2,3,7,8-PeCDF . 35 ± 17total TCDD . 251 ± 157 2,3,4,7,8-PeCDF . 45 ± 161,2,3,7,8-PeCDD. 19 ± 7 total PeCDF.589 ± 369total PeCDD . 204 ± 143 1,2,3,4,7,8-HxCDF . 437 ± 1511