Table 1.
Mean Per- and Polyfluoroalkyl Substance (PFAS) Concentration (ng/g of WW) and Standard Deviation (±SD) in Samples of Food Web Biota and Organic Matter from Five Sites on the Yadkin-Pee Dee River of North Carolina and South Carolina, USa
| sample | n | PFBA | PFPeA | PFBS | PFHxA | PFHpA | PFHxS | PFOA | PFNA | PFOS | PFDA | PFUnA | PFDoA | PFTrA | PFTeA |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| detritus | 5 | <LOQ | <LOQ | <LOQ | <LOQ | <LOQ | <LOQ | <LOQ | <LOQ | <LOQ | <LOQ | <LOQ | <LOQ | <LOQ | <LOQ |
| biofilm | 3 | 108.54 | <LOQ | 194.31 (±259.73) | <LOQ | 112.04 | 19.06 | 463.73 (±601.16) | 91.80 (±115.24) | <LOQ | 39.41 | 29.32 (±27.88) | 79.75 (±58.31) | 65.75 | <LOQ |
| plants | 1 1 |
6.46 | <LOQ | 5.18 | <LOQ | 20.35 (±1.64) | <LOQ | <LOQ | <LOQ | <LOQ | <LOQ | <LOQ | 55.10 (±35.83) | <LOQ | <LOQ |
| algae | 3 | <LOQ | <LOQ | 5.18 | <LOQ | <LOQ | <LOQ | <LOQ | <LOQ | <LOQ | <LOQ | <LOQ | 20.10 | <LOQ | <LOQ |
| submergent macrophytes | 8 | 6.46 | <LOQ | <LOQ | <LOQ | <LOQ | <LOQ | <LOQ | <LOQ | <LOQ | <LOQ | <LOQ | 66.77 (±33.30) | <LOQ | <LOQ |
| mollusks | 1 9 |
<LOQ | 5.70 | 6.35 | <LOQ | <LOQ | <LOQ | 7.41 | <LOQ | 6.47 (±1.87) | <LOQ | <LOQ | 11.71 (±4.24) | <LOQ | <LOQ |
| Asian clam | 5 | <LOQ | <LOQ | <LOQ | <LOQ | <LOQ | <LOQ | <LOQ | <LOQ | <LOQ | <LOQ | na | na | na | na |
| snails | 6 | <LOQ | 5.70 | <LOQ | <LOQ | <LOQ | <LOQ | <LOQ | <LOQ | 6.47 (±1.87) | <LOQ | na | na | na | na |
| unionid mussels | 8 | <LOQ | <LOQ | 6.35 | <LOQ | <LOQ | <LOQ | 7.41 | <LOQ | <LOQ | <LOQ | <LOQ | 11.71 (±4.24) | <LOQ | <LOQ |
| aquatic insects | 2 1 |
7.83 (±1.28) | 10.05 (±2.80) | 16.01 (±3.64) | 9.25 (±2.32) | 10.50 (±3.02) | 15.22 (±4.16) | 10.68 (±3.20) | 8.69 (±2.16) | 132.82 (±79.19) | 18.34 (±13.28) | 7.24 (±2.15) | 174.81 (±428.52) | 12.54 (±8.60) | 28.43 |
| crayfishes | 4 | 23.81 (±1.03) | 17.49 (±3.49) | <LOQ | 5.43 | 23.99 (±19.77) | <LOQ | <LOQ | <LOQ | <LOQ | <LOQ | na | na | na | na |
| fishes | 8 5 |
118.25 (±247.81) | 242.14 (±342.36) | 11.50 (±7.84) | 206.73 (±260.21) | 12.77 (±9.16) | <LOQ | 33.43 (±17.30) | 16.52 | 18.21 (±12.34) | 19.47 (±26.40) | 13.63 (±7.61) | 70.67 (±134.32) | 119.6 (±11.05) | 15.55 (±0.76) |
| American eel | 8 | 21.14 | <LOQ | 7.32 (±0.48) | <LOQ | 10.30 | <LOQ | <LOQ | <LOQ | 11.71 (±5.30) | <LOQ | na | na | na | na |
| blue catfish | 1 0 |
<LOQ | <LOQ | 7.32 | <LOQ | <LOQ | <LOQ | <LOQ | <LOQ | 15.80 | <LOQ | na | na | na | na |
| bluegill | 1 0 |
11.75 | <LOQ | 8.14 (±3.85) | <LOQ | <LOQ | <LOQ | <LOQ | <LOQ | 20.42 (±10.82) | <LOQ | na | na | na | na |
| channel catfish | 1 0 |
280.19 (±448.28) | 777.44 | 16.42 | 552.33 | 32.84 | <LOQ | 21.19 | <LOQ | 11.42 (±2.81) | <LOQ | na | na | na | na |
| common carp | 1 0 |
<LOQ | <LOQ | <LOQ | <LOQ | <LOQ | <LOQ | <LOQ | <LOQ | 15.83 (±5.80) | <LOQ | na | na | na | na |
| largemouth bass | 1 0 |
<LOQ | <LOQ | 8.06 (±0.62) | <LOQ | <LOQ | <LOQ | <LOQ | <LOQ | 14.22 (±5.73) | <LOQ | na | na | na | na |
| notchlip redhorse | 6 | 21.24 | <LOQ | 10.65 | 6.88 | 9.11 (±4.13) | <LOQ | 45.66 | 16.52 | 14.60 (±5.02) | 59.02 | 9.76 (±3.57) | 14.54 (±11.67) | 25.66 (±9.91) | 15.84 (±0.80) |
| shorthead redhorse | 1 1 |
22.72 | 13.37 | 10.10 (±5.17) | <LOQ | 18.56 | <LOQ | <LOQ | <LOQ | 15.37 (±10.39) | 6.87 (±1.57) | 10.48 (±0.45) | 12.26 (±0.77) | 10.61 | <LOQ |
| smallmouth buffalo | 7 | 235.60 (±304.85) | 139.97 (±222.10) | 13.74 (±2.34) | 262.55 | 7.40 (±2.73) | <LOQ | <LOQ | <LOQ | 13.80 (±4.34) | <LOQ | na | na | na | na |
| whitefin shinerb | 3 | <LOQ | <LOQ | <LOQ | <LOQ | <LOQ | <LOQ | <LOQ | <LOQ | 37.36 (±15.75) | <LOQ | na | na | na | na |
| robust redhorse ova | 1 | 11.78 | <LOQ | <LOQ | <LOQ | <LOQ | 14.51 | <LOQ | 6.85 | 482.88 | 34.62 | 52.24 | 29.60 | 19.97 | <LOQ |
a
Detections were reported when concentrations were equal to or greater than the limit of quantitation (LOQ) of 5 ng/g. n = number of samples analyzed; <LOQ = less than limit of quantitation. Values <LOQ were not included in calculation of means; values with no SD had only 1 sample ≤LOQ; na = not analyzed.
b
Whole body concentrations.