1992 GULFWATCH METAL CONCENTRATIONS IN UG/G DRY WEIGHT MASSACHUSETTS Year Station Sample Days Ag Cd Cr Cu Pb Hg Ni Zn Al Fe % Solids Deployed 1992 Sandwich 1P 0 0.67 0.7 2.2 0.2 1 95 14 190 13.00 1992 Sandwich 2P 0 0.81 1 2.4 0.1 1 100 18 200 12.00 1992 Nut Island 1N 60 0.88 1.8 2.1 0.2 1.3 120 130 340 17.00 1992 Nut Island 2N 60 0.37 2.4 7.8 0.3 1 160 110 330 17.00 1992 Nut Island 1C 60 0.8 1.4 5.7 0.1 1 120 130 350 14.00 1992 Nut Island 2C 60 4 2 7.1 0.3 0.9 140 98 380 17.00 1992 Nut Island 3C 60 0.57 1.4 5.6 0.2 1.1 130 150 350 16.00 1992 Sandwich 1C 60 0.41 0.8 0.8 0.1 1 86 65 250 14.00 1992 Sandwich 2C 60 0.33 1 1 0.1 1 94 60 280 13.00 1992 Sandwich 3C 60 0.58 0.8 0.8 0.2 1.7 110 62 280 14.00 NEW HAMPSHIRE Year Station Sample Days Ag Cd Cr Cu Pb Hg Ni Zn Al Fe % Solids Deployed 1992 Shapleigh Island 1N 0 0.07 4.4 5.1 0.6 2.7 190 460 850 12.00 1992 Shapleigh Island 2N 0 0.06 5.7 6.1 0.6 3.1 190 360 690 13.00 1992 Shapleigh Island 3N 0 0.09 3.7 6.1 0.6 2.5 180 230 530 13.00 1992 Shapleigh Island 1N 60 0.08 4.4 5.2 0.6 2.3 150 380 720 12.00 1992 Shapleigh Island 2N 60 0.08 5.3 6.6 0.7 3.4 180 410 820 11.00 1992 Shapleigh Island 3N 60 0.07 3.9 5.1 0.7 2.5 170 320 710 13.00 1992 Shapleigh Island 1C 0 0.11 4.4 4 0.6 3.2 190 410 760 11.00 1992 Shapleigh Island 2C 0 0.15 5.9 4.4 0.7 4.6 160 380 770 11.00 1992 Shapleigh Island 3C 0 0.15 5.1 5 0.5 3.8 150 430 750 12.00 1992 Shapleigh Island 1C 60 0.14 4 3.5 0.5 2.8 150 350 640 12.00 1992 Shapleigh Island 2C 60 0.14 4.6 3.6 0.6 3.5 180 370 700 12.00 1992 Shapleigh Island 3C 60 0.1 4 3.2 0.6 3 160 340 720 11.00 1992 Little Harbor 1N 0 0.03 3.7 5.5 0.7 2.9 170 210 500 11.00 1992 Little Harbor 2N 0 0.05 4.5 5 0.5 2.8 170 280 550 13.00 1992 Little Harbor 3N 0 0.06 8.2 6.1 0.6 4.3 220 200 530 12.00 1992 Little Harbor 1N 60 0.06 3.8 4.1 0.5 2.9 300 340 530 13.00 1992 Little Harbor 2N 60 0.06 5.5 4.2 0.5 3.8 180 420 630 13.00 1992 Little Harbor 3N 60 0.06 3.3 4.4 0.5 2.6 170 270 470 13.00 1992 Little Harbor 1C 0 0.1 3.4 3.6 0.6 3.3 180 300 670 12.00 1992 Little Harbor 2C 0 0.1 2.9 3.6 0.6 2.9 150 340 640 13.00 1992 Little Harbor 3C 0 0.09 3.7 3.6 0.7 3 140 310 640 12.00 1992 Little Harbor 1C 60 0.14 4.1 4.3 0.6 3.4 280 320 680 12.00 1992 Little Harbor 2C 60 0.1 3.5 3.8 0.7 3.2 160 330 710 13.00 1992 Little Harbor 3C 60 0.1 4.7 3.1 0.5 3.7 180 370 710 12.00 MAINE Year Station Sample Days Ag Cd Cr Cu Pb Hg Ni Zn Al Fe % Solids Deployed 1992 Broad Cove 1P 0 0.02 1.2 0.3 0.1 1.5 92 73 220 15.00 1992 Broad Cove 2P 0 0.02 1 0.5 0.1 1.7 91 100 260 15.00 1992 Broad Cove 3P 0 0.02 0.9 0.5 0.2 1.8 84 67 230 15.00 1992 Kennebec River 1P 0 0.05 1 1 0.2 1.7 77 120 340 11.00 1992 Kennebec River 2P 0 0.06 1 0.5 0.1 1.6 79 120 290 12.00 1992 Kennebec River 3P 0 0.06 1.2 0.4 0.1 1.6 75 130 340 13.00 1992 Kennebec River 1N 30 0.04 1.6 0.7 0.2 1.7 73 130 280 6.70 1992 Kennebec River 2N 30 0.05 2.1 0.3 0.2 1.5 56 110 290 11.00 1992 Kennebec River 3N 30 0.05 3.8 1 0.1 2.1 65 120 300 9.40 1992 Kennebec River 1C 30 0.05 2.2 1 0.1 2.2 82 140 330 12.00 1992 Kennebec River 2C 30 0.06 2.1 1 0.1 2.1 82 250 370 12.00 1992 Kennebec River 3C 30 0.07 2.7 1.4 0.1 2.2 93 230 370 14.00 1992 Kennebec River 1C 60 0.07 2.3 0.9 0.2 1.5 68 100 240 13.00 1992 Kennebec River 2C 60 0.06 1.4 0.8 0.1 1.4 73 120 260 12.00 1992 Kennebec River 3C 60 0.05 19 1.6 0.1 3.3 81 95 270 13.00 1992 Kennebec River 1N 60 0.05 6.3 2 0.3 1 83 110 240 10.00 1992 Kennebec River 2N 60 0.07 11 1.8 0.2 2.3 74 100 250 13.00 1992 Kennebec River 3N 60 0.07 2.3 1 0.1 1 75 78 280 10.00 1992 Sheepscot River 1N 60 0.05 3.1 1.9 0.4 2 110 250 420 8.70 1992 Sheepscot River 2N 60 0.04 2.5 1.7 0.4 1.6 120 260 380 12.00 1992 Sheepscot River 3N 60 0.05 28 1.7 0.5 2.7 170 160 360 10.00 NEW BRUNSWICK Year Station Sample Days Ag Cd Cr Cu Pb Hg Ni Zn Al Fe % Solids Deployed 1992 Hospital Island 1N 0 0.27 1 0.3 0.1 1.7 66 90 270 17.00 1992 Hospital Island 2N 0 0.29 0.7 0.3 0.1 1.7 66 110 270 17.00 1992 Hospital Island 1N 60 0.13 0.7 0.4 0.2 1.8 91 150 370 13.00 1992 Hospital Island 2N 60 0.1 0.5 0.7 0.2 1 81 130 330 14.00 1992 Hospital Island 3N 60 0.14 0.8 0.7 0.2 1.7 95 200 460 14.00 1992 Hospital Island 1C 60 0.2 0.5 0.3 0.1 0.7 52 120 220 22.00 1992 Hospital Island 2C 60 0.19 0.3 0.3 0.1 0.5 58 89 180 22.00 1992 Hospital Island 3C 60 0.2 0.5 0.4 0.1 0.7 56 82 190 21.00 1992 Manawagonish Island 1N 60 0.04 6.2 0.7 0.2 5.4 120 730 1500 14.00 1992 Manawagonish Island 2N 60 0.04 13 2.3 0.3 8.3 140 880 1900 5.40 1992 Manawagonish Island 3N 60 0.04 11 1.5 0.2 6.1 120 1100 2100 5.70 1992 Manawagonish Island 1C 60 0.14 1 0.9 0 2.4 100 340 660 17.00 1992 Manawagonish Island 2C 60 0.09 1 0.9 0.2 1.7 81 320 530 17.00 1992 Manawagonish Island 3C 60 0.15 0.9 0.7 0.1 1.8 74 380 590 16.00 NOVA SCOTIA Year Station Sample Days Ag Cd Cr Cu Pb Hg Ni Zn Al Fe % Solids Deployed 1992 Broad Cove 1P 0 0.03 2 1 0.2 3.1 110 170 540 10.00 1992 Broad Cove 2P 0 0.04 4.7 1 0.1 3.7 100 210 570 11.00 1992 Broad Cove 3P 0 0.04 31 2.3 0.2 5.7 140 190 620 12.00 1992 Broad Cove 1N 60 0.02 4 2.7 0.1 3.2 110 280 670 12.00 1992 Broad Cove 2N 60 0.02 3.8 2 0.1 3 84 350 510 13.00 1992 Broad Cove 1C 60 0.03 1.7 1.8 0.2 1.7 73 250 460 16.00 1992 Broad Cove 2C 60 0.03 15 2 0.1 2.9 85 200 480 17.00 1992 Broad Cove 3C 60 0.03 6.4 1.8 0.1 2.7 92 240 420 16.00 1992 Digby 1N 60 0.1 0.9 2.3 0.1 1 96 260 490 20.00 1992 Digby 2N 60 0.25 11 2.3 0 2.8 180 190 450 19.00 1992 Digby 3N 60 0.1 37 9.6 0.2 5.4 390 330 580 19.00 1992 Digby 1C 60 0.03 2.4 1.6 0.1 2.6 69 290 610 19.00 1992 Digby 2C 60 0.03 1.7 1.6 0.1 2.2 62 390 600 18.00 NOTES sample: the # refers to the number of composites (20 mussels/composite) per station. In 1992 there were a maximum of 3 composites/ station "Sample: the letter indicates the typr of sample; c=caged, P=preset; and N=indigenous." date deployed: In 1992 the cages were deployed for 2 different time periods; 30 or 60 days. ND= non-detect K= less than " For purposes of calculation, ND=0 and K= .5 value" ADDITIONAL SAMPLES NOVA SCOTIA: Machias Seal Island specimens were Modiolus sp. and therefore not comparable with rest of data set Year Station Sample Days Ag Cd Cr Cu Pb Hg Ni Zn Al Fe % Solids Deployed 1992 NSMS1N 1N 0 0.35 11 2.8 0.2 11 860 250 370 16.00 1992 NSMS2N 2N 0 0.4 8.4 2.3 0.2 8.8 710 130 380 15.00 1992 NSMS3N 3N 0 0.42 4.8 2.3 0.3 11 720 240 690 15.00 Mean 0.39 8.066666667 2.466666667 0.233333333 10.26666667 763.3333333 206.6666667 480 15.33 s 0.036055513 3.113411848 0.288675135 0.057735027 1.270170592 83.86497084 66.58328118 181.934054 0.58