Parameter | Al (ng/cm2) | Ca (µg/cm2) | ||||
Group | Number | pH 6.2 | pH 5.5 | Number | pH 6.2 | pH 5.5 |
ST | 38 | 52.7 ± 5.1 |
| 41 |
| 48.7 ± 3.1 |
CE | 66 | 64.8 ± 5.3 | 67 | 51.5 ± 2.6 | ||
UC | 22 | 67.8 ± 10.1 | 98.3 ± 13.0 | 21 | 33.6 ± 4.9 | 45.9 ± 4.7 |
TC | 44 | 63.1 ± 6.1 | 90.7 ± 10.6 | 46 | 32.4 ± 1.9 | 54.0 ± 3.1 |