TABLE 1.
PAH concentration and biodegradation potential (percent mineralization) of Little Scioto River sediments
| Site | Mean PAH concn (μg g [dry wt] of sediment−1) ± SD (n = 3)a
|
Mean % mineralization ± SD (n = 2)
|
|||
|---|---|---|---|---|---|
| December | April | July | Naphthalene (48 h) | Anthracene (168 h) | |
| A | 1.56 ± 0.41 | 0.24 ± 0.41 | — | 6.01 ± 5.95 | 2.54 ± 1.29 |
| B | NS | 0.43 ± 0.74 | — | NDb | ND |
| C | NS | 105.51 ± 70.12 | 29.46 ± 7.02 | ND | ND |
| D | NS | 215.36 ± 79.46 | 175.17 ± 67.75 | ND | ND |
| E | 154.88 ± 65.86 | 216.83 ± 36.01 | 100.04 ± 81.12 | 8.31 ± 7.19 | 10.02 ± 9.02 |
| F | NS | NS | 21.82 ± 9.74 | ND | ND |
a
NS, not sampled; —, below detection limit.
b
ND, not determined.