Table 2. Calculated average concentrations in paddy water and in percolation water (µg/L).
| May 18 | May 25 | Jun. 1 | ||
|---|---|---|---|---|
| Pyriminobac-methyl (E+Z) | paddy water | 42.2 | 19.2 | 8.8 |
| percolation water | 25.1 | 15.9 | 13.1 | |
| Imazosulfuron | paddy water | 29.5 | 22.6 | 5.4 |
| percolation water | 10.6 | 7.7 | 1.9 | |
| Pyraclonil | paddy water | 38.0 | 20.5 | 3.3 |
| percolation water | 31.4 | 20.4 | 1.8 |