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Appendix: Screening studies of POPs in fish from the Paz watercourse Table 1.1 QA/QC DATA REPORT for congeners of PCB in sediment Compound Procedural Blank PBS 02, ng Method Detection Limit, ng/g Certified Reference Materials of NWRI EC-5, ng/g Detected Reference Value #1 [CL1] n.d. 0 . 0 2 - - #3 [CL1] n.d. 0 . 0 2 - - #4/#10 [CL2] n.d. 0 . 0 2 - - # 8 [CL2] n.d. 0 . 0 2 - - #19 [CL3] n.d. 0 . 0 2 - - #17/#18 [CL3] n.d. 0 . 0 2 4.1 3.0 ± 1.1 #15 [CL2] n.d. 0 . 0 2 - - #28/#31 [CL3] 0.24 0.04 6 . 2 5.3 ± 1.3 #54 [CL4] n.d. 0.05 - - #33 [CL3] n.d. 0.05 - - #22 [CL3] n.d. 0.05 - - #52 [CL4] n.d. 0 . 0 2 10.9 13.3 ± 4.1 #49 [CL4] n.d. 0 . 0 2 - - #104 [CL5] n.d. 0 . 0 2 - - #44 [CL4] n.d. 0 . 0 2 5.9 7.3 ± 2.4 #37 [CL3] n.d. 0 . 0 2 - - #74 [CL4] n.d. 0 . 0 2 - - #70 [CL4] n.d. 0 . 0 2 - - #95 [CL5] n.d. 0 . 0 2 - - #155 [CL 6 ] n.d. 0 . 0 2 - - #101 [CL5] n.d. 0.05 27.3 24.6 ± 6.0 #99 [CL5] n.d. 0 . 0 2 - - #119 [CL5] n.d. 0 . 0 2 - - #87 [CL5] n.d. 0 . 0 2 1 0 . 1 9.6 ± 1.4 #110 [CL5] n.d. 0 . 1 0 26.4 33.3 ± 11.9 #151 [CL 6 ] n.d. 0 . 0 2 8.3 8.4 ± 2.8 #149 [CL 6 ] n.d. 0 . 0 2 - - #123 [CL5] n.d. 0 . 0 2 - - #118 [CL5] n.d. 0.07 10.9 17.0 ± 7.4 #188 [CL7] n.d. 0 . 0 2 - - #153/#168 [CL 6 ] n.d. 0 . 0 2 25.3 27.2 ± 5.5 #105 [CL5] n.d. 0.05 9.0 7.6 ± 2.7 #138/#158 [CL 6 ] n.d. 0.05 27.6 28.6 ± 9.1 #178 [CL7] n.d. 0.05 - - #155 [CL 6 ] n.d. 0.05 - - #187 [CL7] n.d. 0.05 - - #183 [CL7] n.d. 0.05 6 . 8 7.2 ± 2.8 #128 [CL 6 ] n.d. 0.05 5.0 5.5 ± 2.3 #167 [CL7] n.d. 0.05 - - #177 [CL7] n.d. 0.05 - - #202 [CL 8 ] n.d. 0.05 - - #171 [CL7] n.d. 0.05 - - Akvaplan-niva report APN 514-3365.02 38