Table 4.
Concentration of indicator PCBs, PCB 118, and Σi-PCBs in seabirds
| Species | Concentration, ng/g lw | |||||||
|---|---|---|---|---|---|---|---|---|
| PCB 28 | PCB 52 | PCB 101 | PCB 153 | PCB 138 | PCB 180 | Σi-PCBs | PCB 118 | |
| Common goldeneye—Bucephala clangula | ||||||||
| Muscle | ||||||||
| Mean | 9.11 | 2.09 | 3.18 | 398.04 | 245.01 | 296.44 | 953.87 A | 119.73 |
| Sd | 2.53 | 2.48 | 3.23 | 153.03 | 195.13 | 265.38 | 586.53 | 99.07 |
| Min | 6.73 | < LOQ | < LOQ | 173.49 | 68.49 | 88.63 | 339.34 | 32.42 |
| Max | 12.68 | 4.89 | 7.56 | 517.30 | 523.86 | 685.77 | 1752.06 | 262.21 |
| Liver | ||||||||
| Mean | 2.65 | 5.46 | 2.17 | 440.80 | 243.37 | 212.34 | 906.78 | 108.25 |
| Sd | 3.94 | 3.84 | 1.52 | 413.71 | 212.82 | 163.98 | 791.64 | 69.98 |
| Min | 0.00 | 0.66 | 0.00 | 16.62 | 13.51 | 12.99 | 43.78 | 17.84 |
| Max | 8.35 | 10.05 | 3.22 | 987.18 | 512.36 | 413.38 | 1923.98 | 188.59 |
| Fat tissue | ||||||||
| Mean | 5.68 | 4.18 | 3.42 | 265.36 | 176.91 | 190.63 | 646.18 | 42.60 |
| Sd | 1.47 | 5.06 | 1.24 | 121.08 | 60.95 | 153.15 | 288.40 | 7.49 |
| Min | 4.02 | 0.98 | 2.01 | 131.21 | 119.02 | 88.01 | 347.18 | 37.93 |
| Max | 6.81 | 10.01 | 4.32 | 366.54 | 240.51 | 366.66 | 922.65 | 51.24 |
| Tufted duck—Aythya fuligula | ||||||||
| Muscle | ||||||||
| Mean | 5.59 | 6.30 | 1.86 | 231.14 | 192.41 | 148.96 | 586.27 | 65.25 |
| Sd | 3.30 | 3.09 | 2.04 | 189.59 | 113.62 | 82.57 | 358.41 | 21.55 |
| Min | 0.00 | 1.18 | 0.00 | 24.98 | 24.33 | 23.39 | 78.82 | 32.13 |
| Max | 7.68 | 8.99 | 4.93 | 420.29 | 317.68 | 234.36 | 956.81 | 88.09 |
| Liver | ||||||||
| Mean | 7.14 a | 4.85 | 6.28 | 658.95 | 269.45 | 435.87 A,B | 1382.54 | 124.74 |
| Sd | 8.26 | 4.58 | 6.11 | 391.59 | 172.64 | 295.38 | 854.06 | 84.88 |
| Min | 0.00 | 0.00 | 1.02 | 157.66 | 53.03 | 69.91 | 281.63 | 28.99 |
| Max | 14.90 | 11.05 | 14.97 | 1114.07 | 436.18 | 733.48 | 2315.45 | 235.35 |
| Fat tissue | ||||||||
| Mean | 2.2 a | 0.6 | 1.4 | 72.3 | 52.1 | 63.2 | 191.80 | 33.20 |
| Sd | 2.1 | 0.7 | 1.7 | 57.5 | 43.3 | 49.3 | 130.80 | 31.98 |
| Min | < LOQ | < LOQ | < LOQ | < LOQ | < LOQ | < LOQ | < LOQ | < LOQ |
| Max | 4.7 | 1.5 | 3.4 | 138.2 | 105.5 | 119.0 | 293.96 | 76.92 |
| Common pochard—Aythya ferina | ||||||||
| Muscle | ||||||||
| Mean | 6.52 | 3.46 | 4.37 | 243.01 | 141.61 | 164.42 | 563.39 A | 13.01 a |
| Sd | 4.59 | 3.20 | 3.64 | 66.22 | 45.75 | 47.29 | 86.06 | 15.00 |
| Min | 1.31 | 0.00 | 1.37 | 108.31 | 88.94 | 116.71 | 378.84 | 0.86 |
| Max | 13.94 | 8.81 | 10.52 | 324.61 | 222.88 | 231.95 | 641.02 | 42.21 |
| Liver | ||||||||
| Mean | 10.59 a | 5.90 a | 7.25 a | 348.82 a | 174.55 a | 220.84 a,B | 767.93 | 12.45 b |
| Sd | 5.78 | 7.46 | 7.13 | 208.04 | 65.63 | 68.32 | 295.12 | 12.03 |
| Min | 1.55 | < LOQ | < LOQ | 77.88 | 52.28 | 76.34 | 223.56 | 1.02 |
| Max | 17.06 | 22.68 | 21.82 | 739.73 | 264.56 | 284.49 | 1278.31 | 33.25 |
| Fat tissue | ||||||||
| Mean | 2.01 a | 0.47 a | 1.58 a | 124.10 a | 66.96 a | 70.93 a | 266.05 | 26.41 a,b |
| Sd | 0.85 | 0.34 | 0.42 | 41.51 | 21.21 | 45.68 | 39.05 | 3.48 |
| Min | 1.31 | 0.00 | 1.17 | 85.55 | 46.54 | 35.03 | 207.89 | 22.22 |
| Max | 3.25 | 0.79 | 2.13 | 182.07 | 96.31 | 135.30 | 290.77 | 30.69 |
| Greater scaup—Aythya marila | ||||||||
| Muscle | ||||||||
| Mean | 2.34 | 1.94 | 2.44 | 175.48 | 97.52 | 92.82 | 372.53 | 35.60 |
| Sd | 2.76 | 2.38 | 2.78 | 153.87 | 79.11 | 81.21 | 314.28 | 28.70 |
| Min | < LOQ | < LOQ | < LOQ | 6.47 | 3.14 | 5.15 | 14.77 | 1.63 |
| Max | 6.61 | 6.89 | 9.23 | 506.99 | 237.48 | 265.52 | 1024.23 | 99.76 |
| Liver | ||||||||
| Mean | 3.72 | 3.25 | 3.27 | 171.88 | 110.60 | 91.86 A | 384.57 | 41.96 |
| Sd | 3.37 | 2.70 | 3.34 | 178.08 | 91.74 | 114.57 | 368.38 | 47.84 |
| Min | < LOQ | < LOQ | < LOQ | 9.64 | 4.64 | 3.37 | 17.65 | 6.55 |
| Max | 9.18 | 8.70 | 10.07 | 503.49 | 271.30 | 407.54 | 1186.19 | 158.30 |
| Fat tissue | ||||||||
| Mean | 5.05 | 5.43 | 2.78 | 213.39 | 194.89 | 174.29 | 595.82 | 61.18 |
| Sd | 3.26 | 6.49 | 1.72 | 124.901 | 148.42 | 142.20 | 387.78 | 40.23 |
| Min | 0.31 | < LOQ | 0.17 | 16.23 | 8.80 | 8.48 | 34.19 | 2.80 |
| Max | 9.86 | 16.50 | 5.36 | 335.79 | 490.95 | 371.00 | 1222.96 | 135.88 |
(a,…) The same lowercase letters denote significant (p < 0.05) intraspecies differences between the tissues. (A,…) The same capital letters denote significant (p < 0.05) interspecies differences