Table 4.
Herbicide concentrations (µg l−1) at days 0 and day 330. Includes transformation products and concentrations which were measured and estimated. (See SOM Tables 3 and 4 for identification and quantification details).
| Parent herbicide | Time (d) | Parent herbicide concentration | % degradation | Transformation product concentration | ||
|---|---|---|---|---|---|---|
| Diuron | 3,4- Dichloroaniline | DCPU | DCPMU | |||
| 0 | 967 | BDL | BDL | BDL | ||
| 330 | 71 | 93% | 2.1 | 85 | 236 | |
| Desethyl atrazine | Desisopropyl Atrazine | Atrazine hydroxy | ||||
| Atrazine | 0 | 773 | BDL | BDL | BDL | |
| 330 | 278 | 64% | 36 | 5.1 | 30 | |
| Ametryn hydroxy | Ametryn desethyl | Ametryn desisopropyl | ||||
| Ametryn | 0 | 429 | BDL | BDL | BDL | |
| 330 | 189 | 56% | 188 | 23 | BDL | |
| Hexazinone oxy | Hexazinone hydroxy | Hexazinone desmethyl | ||||
| Hexazinone | 0 | 871 | BDL | BDL | BDL | |
| 330 | 366 | 58% | 26 | 5.4 | 91 | |
| Desethyl simazine | Simazine hydroxy | Simazine amine | ||||
| Simazine | 0 | 1024 | BDL | BDL | BDL | |
| 330 | 384 | 63% | 79 | 45 | 31 |