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Exposure conditions of different groups.
| Groups | Exposure conditions |
|---|---|
| Control | Tap water |
| Group 1 | mixture (0.1 uM DCF + 0.1 uM IBP + 0.1 uMs NPX) |
| Group2 | 10 uM PS treated by UV for 30 min |
| Group3 | mixture (0.1 uM DCF + 0.1 uM IBP + 0.1 uMs NPX) treated by UV/PS for 5 min |
| Group 4 | mixture (0.1 uM DCF + 0.1 uM IBP + 0.1 uMs NPX) treated by UV/PS for 30 min |
