| Parent | Aerobic conditions | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Soil type (indicate if bare or cropped soil was use/d) | Study – Soil | pH(CaCl2) | Org. C (%) | DT50 (day) | DT90 (day) | Kinetic parameters | St. (χ2) (a) | Fast DT50 (dnorm) 20°C/pF2 | Slow DT50 (dnorm) 20°C/pF2 | Method of calculation (a) |
| Loamy sand (bare soil) | 1999/11287‐ALO/03/98 | 7.5 | 0.7 |
2.4 |
526.5 |
k1: 0.2914 k2: 0.00273 tb: 3.005 |
5.2/ – |
– (b) |
HS/ – |
|
| Sandy loam (bare soil) | 1999/11287 ‐ ALO/04/98 | 7.6 | 0.9 | 5.4 | 793.7 |
k1: 0.1287 k2:0.00186 tb: 6.527 |
9.2/ – |
– (b) |
HS/ – |
|
| Loamy sand (bare soil) | 1999/11287 ‐HUS/09/98 | 5.8 | 1.3 | 91.5 | > 1000 |
k1: 0.00758 k2: 2.3 E‐14 tb: 118.6 |
8.8/12.5 | 79.8 | HS/SFO | |
| Loamy sand (bare soil) | 2000/1000122 ‐ D05/03/97 | 6.3 | 1.08 | 29.3 | > 1000 | k1: 0.05682 k2: 0.00029 g: 0.613 | 1.9/5.9 | 8.3 (c) | 346.2 (d) | DFOP/HS |
| Loamy sand (bare soil) | 2000/1000122 ‐ DU3/04/97 | 5.3 | 0.63 | 63.0 | > 1000 |
k1: 0.01428 k2: 3.07 E‐13 g: 0.843 |
4.8/7.5 | 62.0 | DFOP/SFO | |
| Silty clay loam (bare soil) | 2000/1000122 ‐ DU2/03/97 | 6.4 | 1.29 | 25.1 | > 1,000 | k1: 0.04073 k2: 0.000619 g: 0.776 | 6.7/7.0 | 6.5 (c) | 158.7 (d) | DFOP/DFOP |
| Loam (bare soil, sand cover) | 2014/1289366 ‐ 01 (ES) | 7.3 | 0.93 | 18.5 (f) | 611.7 (f) |
k1: 0.03753 (f) k2: 0.00178 (f) tb: 3.4 (f) |
25.2/33.0 | 101.9 (e) | HS/FOMC | |
| Sandy loam (bare soil, sand cover) | 2014/1289366 ‐ 02 (IT) | 7.6 | 0.45 | 36.7 (f) | 946.6 (f) |
k1: 0.04145 (f) k2: 0.001424 (f) g: 0.615 (f) |
6.0/6.3 | 15.3 (c) | 279.7 (d) | DFOP/DFOP |
| Silt loam (bare soil, sand cover) | 2014/1289366 ‐ 03 (UK) | 6.6 | 1.64 | 62.7 (f) | 625.1 (f) |
k1: 1458 (f) k2: 0.008903 (f) g: 0.241 (f) |
15.2/15.8 | 65.6 | DFOP/SFO | |
| Sandy loam (bare soil, sand cover) | 2014/1289366 ‐ 04 (DE) | 5.9 | 2.07 | 184.7 (f) | > 1,000 (f) |
k1: 0.02567 (f) |
4.5/6.6 | 126.6 | DFOP/SFO | |
| Silt loam (bare soil, sand cover) | 2014/1289366 ‐ 05 (FR) | 4.9 | 0.81 | 14.0 (f) | 283.2 (f) |
k1: 0.09157 (f) k2: 0.00427 (f) g: 0.665 (f) |
4.5/9.9 | 47.4 (e) | DFOP/FOMC | |
| Geometric mean (if not pH dependent) | 38.0 (n = 9) | 113.2 (n = 9) | ||||||||
| pH dependence | No | |||||||||
First value applies to trigger DT50, second value applies to modelling DT50.
No normalised DT50 derived due to experimental conditions not suitable for normalisation.
DegT50 calculated from fast rate (ln2/k1)
DegT50 calculated from slow rate (ln2/k1).
DegT50 was calculated as DT90/3.32.
Best‐fit endpoints should not be used as triggers for additional work due to exclusion of surface loss processes.