Sources of PCBs in the Ramford River
| History | Surface Sediment Samples | Water Samples | Species Samples | Sampling Protocol |
Table 3. PCB concentrations in selected fish and shellfish (crustaceans) from the Ramford River and Ramford Bay. Values are ug/g (or parts per million) per wet weight of tissue. The mean value is presented with the number of organisms analyzed in parenthesis. See field sampling and analytical chemistry program sections for details.
| Species | Station | 1975 | 1981 | 1988 | 1991 | 1998 |
|
Smallmouth Bass |
1 |
0.25(10) |
ND(5) |
ND (6) |
0.44(6) |
0.18(6) |
|
7 |
13.4(15) |
20.5(16) |
16.7(14) |
19.6(15) |
18.8(20) |
|
|
10 |
9.6(12) |
13.8(14) |
12.3(18) |
10.4(12) |
15.7(15) |
|
|
17 |
5.9(10) |
8.4(18) |
6.1(12) |
11.6(16) |
5.3(6) |
|
|
Brown Bullhead |
1 |
0.61(4) |
0.25(8) |
0.21(10) |
0.43(12) |
0.22(6) |
|
3 |
1.24(4) |
1.76(12) |
0.99(16) |
1.35(15) |
1.28(13) |
|
|
7 |
10.8(5) |
14.5(10) |
12.3(10) |
16.6(12) |
18.2(10) |
|
|
11 |
3.44(6) |
5.55(10) |
6.28(12) |
11.4(12) |
17.3(10) |
|
|
19 |
1.36(7) |
2.45(10) |
3.67(10) |
3.98(10) |
6.43(12) |
|
|
23 |
1.02(4) |
1.77(10) |
2.02(12) |
2.99(10) |
3.69(10) |
|
|
Sunfish |
2 |
0.67(5) |
0.33(8) |
0.43(6) |
0.69(10) |
0.76(10) |
|
7 |
25.0(8) |
12.6(6) |
11.3(12) |
18.6(10) |
11.4(10) |
|
|
11 |
10.3(6) |
10.9(10) |
12.7(10) |
13.8(12) |
12.7(10) |
|
|
17 |
10.6(5) |
8.42(10) |
8.86(12) |
12.3(12) |
11.7(10) |
|
|
19 |
2.01(6) |
1.23(10) |
3.66(10) |
4.78(12) |
6.00(10) |
|
|
White Perch |
24 |
2.63(10) |
3.6(10) |
1.09(3) |
1.28(3) |
2.4(6) |
|
27 |
0.62(3) |
0.44(4) |
0.36(4) |
0.85(3) |
1.01(4) |
|
|
American Eel |
23 |
0.98(15) |
1.56(40) |
4.80(20) |
3.68(25) |
2.40(20) |
|
24 |
1.28(30) |
3.50(20) |
2.98(30) |
3.30(20) |
2.28(20) |
|
|
29 |
1.30(20) |
1.26(30) |
2.75(40) |
1.87(20) |
2.98(30) |
Table 3 (cont.). PCB concentrations in selected fish and shellfish (crustaceans) from the Ramford River and Ramford Bay. Values are ug/g (or parts per million) per wet weight of tissue. The mean value is presented with the number of organisms analyzed in parenthesis. See field sampling and analytical chemistry program sections for details.
| Species | Station | 1975 | 1981 | 1988 | 1991 | 1998 |
|
Largemouth bass |
1 |
1.22(3) |
0.84(3) |
0.55(3) |
1.78(2) |
0.33(2) |
|
7 |
81.1(2) |
36.4(3) |
21.8(3) |
18.5(2) |
17.1(3) |
|
|
17 |
15.2(3) |
22.8(2) |
34.6(3) |
38.9(2) |
22.7(2) |
|
|
Striped Bass |
18 |
2.17(10) |
2.25(10) |
2.35(10) |
4.57(20) |
5.10(20) |
|
24 |
2.68(15) |
3.90(20) |
2.95(20) |
3.74(10) |
4.55(20) |
|
|
28 |
3.69(20) |
2.17(12) |
4.43(10) |
5.67(20) |
2.66910) |
|
|
30 |
2.06(10) |
5.8(15) |
3.89(20) |
4.77(15) |
5.8(15) |
|
|
Ramford Bay |
2.52(15) |
3.54(20) |
4.76(15) |
4.43(15) |
4.60(20) |
|
|
Carp |
3 |
0.33(8) |
0.14(10) |
0.12(5) |
0.62(5) |
0.55(5) |
|
8 |
17.6(7) |
23.8(5) |
45.1(5) |
48.9(6) |
54.9(5) |
|
|
11 |
10.3(6) |
16.5(5) |
33.1(6) |
38.5(6) |
40.5(8) |
|
|
18 |
1.33(5) |
2.00(6) |
4.88(6) |
8.23(6) |
17.1(8) |
|
|
Blue Fish |
29 |
0.43(10) |
0.59(10) |
2.66(10 |
2.06(10) |
2.25(10) |
|
30 |
0.22(10) |
1.16(10) |
2.08(10) |
3.59(10) |
3.50(10) |
|
|
Ramford Bay |
0.24(10) |
1.72(10) |
2.88(10) |
4.22(10) |
4.18(10) |
|
|
Blue Crab |
28 |
1.41(15) |
1.89(15) |
2.68(15) |
2.19(15) |
3.30(15) |
|
29 |
0.58(15) |
0.97(15) |
1.33(15) |
3.09(15) |
4.64(15) |
|
|
30 |
0.39(15) |
0.81(15) |
2.42(15) |
3.56(15) |
4.92(15) |
|
|
Ramford Bay |
0.27(15) |
0.44(15) |
1.67(15) |
2.99(15) |
3.77(15) |