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(b) Average
| 60 nm | Control | 10 ppm | 5 ppm | 2.5 ppm | 1.25 ppm | 0.625 ppm | 0.3125 ppm |
|---|---|---|---|---|---|---|---|
| 24 h | 100.00 (18.91) | 102.21 (4.83) | 81.25 (21.52) | 90.01 (3.52) | 83.03 (16.40) | 86.82 (21.28) | 95.95 (10.43) |
| 48 h | 100.00 (6.62) | 100.23 (2.60) | 99.28 (14.65) | 118.66 (2.05) | 110.94 (8.61) | 108.84 (4.82) | 104.26 (6.75) |
| 72 h | 100.00 (7.07) | 93.12 (11.91) | 85.25 (14.54) | 91.60 (13.22) | 84.21 (0.60) | 93.57 (5.98) | 104.29 (7.52) |
