TABLE 5.
Normalized apparent rate constants for oxidation of 14CH2Br2 and 14CH3Bra
| Water type |
k′app (108 day−1 per bacterium−1) per ml)
|
|
|---|---|---|
| Dibromomethane | Methyl bromide | |
| Freshwater | 8.1 ± 0.81 (2/2)b | 5.1 ± 2.2 (3/3) |
| Estuarine | 39 ± 44 (2/2) | 1.3 ± 0.7 (10/4) |
| Coastal seawater | 72 ± 30 (7/5) | 0.56 ± 0.33 (10/6) |
| Hypersaline-alkaline | 6.2 ± 1.7 (2/2) | 0.022 ± 0.016 (3/3) |
a
Values were determined by using equation 3.
b
Average ± standard deviation. The values in parentheses are number of experiments/number of separately collected water samples. Individual rate constants were normalized by initial bacterial density for each experiment. The errors in AODC measurements ranged from ∼5 to 30%.