Table 3.
Congener | Mean | GM | Range | Percent detected |
---|---|---|---|---|
PCB-74 | 10.8 | 9.41 | <3.80–50.5 | 97 |
PCB-99 | 9.14 | 6.66 | <1.41–64.3 | 94 |
PCB-105 | 2.30 | 1.80 | <1.00–13.4 | 69 |
PCB-118 | 13.1 | 11.2 | 3.81–69.9 | 100 |
PCB-138 | 25.9 | 22.7 | 5.45–101 | 100 |
PCB-146 | 4.72 | 4.01 | 1.55–33.8 | 100 |
PCB-153 | 47.1 | 41.7 | 14.4–177 | 100 |
PCB-156 | 5.36 | 4.77 | 2.15–24.7 | 100 |
PCB-163 | 17.1 | 14.5 | 5.39–124 | 100 |
PCB-167 | 1.60 | 1.30 | < 0.96–8.52 | 66 |
PCB-170 | 12.9 | 11.4 | 5.57–65.2 | 100 |
PCB-172 | 1.62 | 1.30 | < 0.72–11.5 | 64 |
PCB-177 | 1.76 | 1.46 | < 0.80–8.68 | 72 |
PCB-178 | 2.29 | 1.80 | < 0.94–19.6 | 81 |
PCB-180 | 40.4 | 34.7 | 1.39–206 | 100 |
PCB-183 | 3.09 | 2.71 | <1.30–9.3 | 96 |
PCB-187 | 9.00 | 7.56 | 2.26–62.2 | 100 |
PCB-194 | 7.35 | 6.36 | < 0.57–42.1 | 99 |
PCB-195 | 1.20 | 1.01 | < 0.72–5.44 | 50 |
PCB-196 | 2.10 | 1.78 | < 0.80–9.09 | 84 |
PCB-199 | 2.64 | 2.20 | < 1.06–17.8 | 88 |
PCB-203 | 4.53 | 4.04 | < 0.82–21.1 | 99 |
PCB-206 | 2.47 | 2.11 | < 0.94–13.3 | 90 |
PCB-209 | 1.19 | 0.92 | < 0.60–8.19 | 60 |
∑PCBs | 229 | 204 | 93.1–1,010 |
Only congeners detected in > 50% of the samples are listed. A value equal to one-half of the LOD was substituted for nondetects to calculate mean values. n = 109 (analytical problems were encountered with one sample).