TABLE 1.
Maximum observed rates of dechlorination at different PCB concentrations
| No. of transfers without sediment | Expt | Aroclor 1260 concn
|
Maximum observed rate of dechlorination (nmol Cl/culture/day) (mean ± SD)a | |
|---|---|---|---|---|
| μg/ml | μM | |||
| 1 | JN2 | 5 | 13.5 | 4.71 ± 1.10 |
| 2 | JN3 | 5 | 13.5 | 3.53 ± 1.03 |
| 3 | JN7 | 5 | 13.5 | 4.88 ± 0.83 |
| 5 | JN12 | 50 | 135.0 | 169 ± 15 |
| 6 | JN13 | 50 | 135.0 | 99 ± 6 |
| 250 | 675.0 | 290 ± 51 | ||
| 500 | 1,350.0 | 594 ± 93 | ||
| 8 | JN18 | 50 | 135.0 | 100 ± 9 |
| 250 | 675.0 | 544 ± 44 | ||
a
The concentrations of Cl were calculated from the PCB analyses. Data were calculated per 30-ml culture.