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Measured values of the overall isotope effect of denitrification
| Experimental system | ɛ (‰) | Reference |
|---|---|---|
| Pseudomonas denitrificans | 13–21 | 13 |
| Pseudomonas stutzeri | 20–30 | 50 |
| Nitrosomonas europaeaa | 35–36 | 52 |
| Soil (amended with glucose) | 14–23 | 5 |
| Soil (unamended) at 20°C | 29.4 ± 2.4 | 27 |
| Soil (unamended) at 30°C | 24.6 ± 0.9 | 27 |
| Eastern tropical North Pacific | 30–40 | 10 |
| Groundwater | 15.9 | 6 |
Assumes that N2O is formed by NO2− reduction.
