Table 3.
Site | Latitude (°N) |
Longitude (°W) |
Water depth (m) |
Distance from shore (km) |
Distance to nearest AOC/industrial/urban areas (km) |
Sediment type | Moisture content (%) |
OC (%) |
Σ15PAH (ng/g dry) |
Σ11NPAH (ng/g dry) |
Σ6Sterane (ng/g dry) |
Σ5Hopane (ng/g dry) |
---|---|---|---|---|---|---|---|---|---|---|---|---|
A-1 | 42.108 | 86.533 | 16 | 3.4 | 3.8 | sand | 8.4 | 0.6 | 496.9 | 5.13 | 9.7 | 174.4 |
B-2 | 42.400 | 86.450 | 52 | 13.3 | 34.2 | silt | 60.1 | 3.5 | 802.8 | 10.52 | 18.1 | 300.2 |
B-3 | 42.400 | 86.592 | 64 | 24.3 | 42.1 | silt | 59.2 | 2.3 | 831.6 | 8.20 | 20.6 | 256.1 |
B-4 | 42.392 | 87.017 | 124 | 53.9 | 53.5 | silt over loam | 60.0 | 3.6 | 513.0 | 9.60 | 17.7 | 196.2 |
B-5 | 42.375 | 87.350 | 108 | 38.0 | 38.9 | silt over loam | 49.3 | 2.7 | 508.6 | 9.13 | 21.3 | 207.4 |
B-6 | 42.375 | 87.500 | 84 | 25.6 | 26.6 | silt over loam | 40.6 | 4.7* | 327.3 | 6.59 | 11.4 | 138.9 |
B-7 | 42.367 | 87.667 | 45 | 12.0 | 12.8 | silty sand | 33.5 | 0.9 | 312.8 | 4.89 | 6.4 | 103.1 |
C-5 | 42.817 | 86.833 | 136 | 50.8 | 53.1 | silt | 64.0 | 4.6 | 860.2 | 17.02 | 20.8 | 323.0 |
C-6 | 42.795 | 87.447 | 105 | 25.4 | 44.6 | silt over sandy loam | 39.1 | 1.6 | 421.8 | 5.23 | 8.8 | 113.6 |
C-7 | 42.792 | 87.575 | 60 | 15.0 | 36.8 | silt over sandy loam | 47.8 | 2.0 | 609.5 | 8.50 | 15.6 | 221.2 |
EG-14 | 42.378 | 86.775 | 98 | 36.7 | 37.7 | silt | 62.0 | 4.4 | 1290.8 | 14.48 | 36.0 | 355.0 |
EG-18 | 42.293 | 86.643 | 60 | 22.2 | 23.6 | silt | 47.4 | 2.3 | 588.5 | 6.18 | 19.5 | 255.3 |
H-15 | 42.158 | 87.433 | 60 | 22.9 | 34.1 | silty sand | 28.4 | 0.5 | 332.6 | 2.91 | 7.8 | 102.3 |
H-22 | 42.139 | 86.664 | 48 | 14.6 | 14.8 | silt | 60.1 | 2.1 | 903.1 | 6.52 | 24.0 | 332.6 |
H-28 | 42.630 | 86.265 | 22 | 2.9 | 5.2 | medium to coarse sand | 18.2 | 0.3 | 347.4 | 5.64 | 10.0 | 98.7 |
H-29 | 42.630 | 86.306 | 32 | 6.3 | 8.3 | silt | 39.7 | 1.8 | 364.3 | 6.85 | 7.4 | 114.0 |
H-30 | 42.630 | 86.433 | 70 | 16.7 | 18.6 | silt | 66.1 | 4.0 | 1234.5 | 18.59 | 33.3 | 351.1 |
H-31 | 43.041 | 86.333 | 45 | 6.9 | 21.4 | silt, some sand | 55.6 | 3.0 | 588.9 | 8.90 | 15.1 | 186.0 |
H-8 | 42.399 | 87.771 | 19 | 2.6 | 6.0 | silt with some clay | 28.9 | 0.8 | 451.2 | 5.73 | 11.2 | 116.4 |
S-2 | 41.765 | 87.391 | 13 | 8.5 | 11.7 | fine sand | 20.6 | 0.3 | 398.1 | 7.81 | 8.8 | 125.8 |
S-3 | 41.850 | 87.320 | 25 | 19.4 | 22.7 | silty sand | 21.6 | 0.5 | 212.8 | 5.01 | 6.2 | 97.7 |
S-4 | 41.935 | 87.252 | 40 | 30.4 | 33.7 | silty sand | 23.8 | 0.5 | 315.8 | 6.85 | 9.5 | 127.8 |
V-1 | 41.697 | 87.013 | 17 | 1.6 | 35.9 | clay, some sand | 18.3 | 4.6* | 329.2 | 3.74 | 6.8 | 111.3 |
X-1 | 43.103 | 86.367 | 45 | 7.9 | 14.7 | silt | 42.2 | 1.7 | 564.1 | 6.76 | 10.4 | 181.1 |
Mean | 41.5 | 2.2 | 566.9 | 8.0 | 14.8 | 191.2 | ||||||
Std | 17.4 | 1.5 | 286.1 | 3.9 | 8.2 | 88.4 | ||||||
Min | 8.4 | 0.3 | 212.8 | 2.9 | 6.2 | 97.7 | ||||||
Max | 66.1 | 4.7 | 1290.8 | 18.6 | 36.0 | 355.0 |
OC: organic carbon. Std: standard deviation.
OC values marked with an asterisk were not used in regression analyses (see Section 2.4).