TABLE 1.
Treatment concentration levels of chromium (K2Cr2O7) and lead (PbCl2) salts.
| Stress level | K2Cr2O7 (mg/L) | PbCl2 (mg/L) | ||
| Control | T1 | 0 | T1 | 0 |
| Low stress | T2 | 113.15 | T2 | 67.14 |
| Moderate stress | T3 | 226.28 | T3 | 268.15 |
| High stress | T4 | 452.56 | T4 | 536.28 |
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