Table 1.
Number of detected compounds (and number not typically monitored) in each designated structural class, and average number detected in each study species.
| Long-beaked common dolphin (D. capensis, n=5) | Short-beaked common dolphin (D. delphls, n=5) | Risso’s dolphin (G. griseus, n=5) | California sea lion (Z. califomlanus, n=5) | Harbor seal (P. vitulina, n=5) | ||||
|---|---|---|---|---|---|---|---|---|
| Structural class | No. HOCs in class | (No. not typically monitored) | Source | Average no. HOCs | Average no. HOCs | Average no. HOCs | Average no. HOCs | Average no. HOCs |
| B/CDE | 1 | 1 | unknown | 0 | 0 | 0 | 0 | 0 |
| Brominated anisole | 1 | 1 | mixed | 1(1) | 0 | 0 | 0 | 0 |
| Chlordane-related | 14 | 9 | anthropogenic | 8(3) | 8(4) | 7(3) | 5(2) | 1(0) |
| Chlorinated benzene | 1 | 1 | anthropogenic | 1(1) | 1(1) | 1(1) | 0 | 1(1) |
| Chlorinated styrene | 1 | 1 | anthropogenic | 1(1) | 0 | 0 | 0 | 0 |
| DDT-related | 24 | 16 | anthropogenic | 13(7) | 12(5) | 10(4) | 4(2) | 3(1) |
| Dichlorobenzophenone | 1 | 1 | anthropogenic | 0 | 0 | 0 | 0 | 0 |
| Dieldrin | 1 | 0 | anthropogenic | 0 | 1(0) | 0 | 0 | 0 |
| DMBP | 16 | 16 | natural | 8(8) | 12 (12) | 13(13) | 2(2) | 0 |
| HCH-related | 2 | 0 | anthropogenic | 1(0) | 1(0) | 1(0) | 1(0) | 0 |
| Heptachlor-related | 3 | 2 | anthropogenic | 1(1) | 2(1) | 1(0) | 0 | 0 |
| MBP | 6 | 6 | natural | 4(4) | 4(4) | 3(3) | 2(2) | 0 |
| MeO-B/CDE | 1 | 1 | natural | 0 | 0 | 1(1) | 0 | 0 |
| MeO-BDE | 3 | 3 | natural | 2(2) | 2(2) | 2(2) | 0 | 0 |
| MeO-CDE | 1 | 1 | unknown | 0 | 0 | 0 | 0 | 0 |
| MeO-PBB | 1 | 1 | natural | 1(1) | 1(1) | 1(1) | 0 | 0 |
| Methylenebistrichloroanisole | 1 | 1 | anthropogenic | 1(1) | 1(1) | 1(1) | 0 | 0 |
| Methylsulfonyl-PCB | 7 | 7 | anthropogenic | 2(2) | 1(1) | 1(1) | 1(1) | 3(3) |
| Mirex-related | 5 | 4 | anthropogenic | 3(2) | 3(2) | 2(1) | 1(0) | 1(0) |
| PBB | 10 | 9 | anthropogenic | 4(3) | 4(3) | 4(3) | 1(0) | 2(2) |
| PBDE | 16 | 6 | anthropogenic | 10(1) | 9(2) | 9(1) | 8(0) | 6(0) |
| PBHD | 3 | 3 | natural | 1(1) | 1(1) | 2(2) | 0 | 0 |
| PCT | 6 | 6 | anthropogenic | 2(2) | 1(1) | 3(3) | 0 | 0 |
| Pyrrolidinecarbonyl chloride | 1 | 1 | anthropogenic | 0 | 0 | 0 | 0 | 0 |
| TCPM | 8 | 8 | anthropogenic | 6(6) | 6(6) | 6(6) | 2(2) | 1(1) |
| TCPMOH | 2 | 2 | anthropogenic | 1(1) | 1(1) | 1(1) | 0 | 0 |
| Toxaphene | 13 | 5 | anthropogenic | 4(0) | 7(0) | 5(0) | 0 | 0 |
| Unknown | 22 | 22 | unknown | 5(5) | 5(5) | 6(6) | 0 | 0 |
| Unknown-3 | 2 | 2 | unknown | 1(1) | 1(1) | 0 | 0 | 0 |
| Unknown-4 | 12 | 12 | unknown | 6(6) | 4(4) | 4(4) | 1(1) | 0 |
| Unknown-5 | 2 | 2 | unknown | 1(1) | 1(1) | 2(2) | 0 | 0 |
| Unknown-6 | 3 | 3 | unknown | 1(1) | 1(1) | 0 | 0 | 0 |
| Unknown-7 | 2 | 2 | unknown | 1(1) | 1(1) | 1(1) | 0 | 1(1) |
| Unknown-8 | 2 | 2 | unknown | KD | KD | KD | 0 | 0 |
| Average PCBs | - | - | anthropogenic | 43 | 39 | 35 | 24 | 17 |
| Average Total HOCs (excluding PCBs) | 194 | - | mixed | 90 | 89 | 89 | 29 | 22 |
| (Range) | (77 – 98) | (77 – 102) | (70 – 108) | (14 – 55) | (11 – 32) | |||