Table 2.
The levels of analyzed elements in red and brown seaweeds.
| Elements | Red seaweed (n = 142) | Brown seaweed (n = 153) | Combine (total n = 295) | ||||
|---|---|---|---|---|---|---|---|
| Mean ± SD (mg/kg) |
Range (mg/kg) |
Mean ± SD (mg/kg) |
Range (mg/kg) |
Mean ± SD (mg/kg) |
P97.5 (mg/kg) |
Range (mg/kg) |
|
| Al | 597.6 ± 594.23 | 0.353‒3904 | 597.65 + 655.65 | 0.173‒4505 | 553.8 ± 626.4 | 2376.8 | 0.173‒4505 |
| As | 22.05 ± 11.28 | 0.185‒41.4 | 23.01 ± 15.67 | 0.442‒71 | 22.61 ± 14.0 | 52.1 | 0.185‒71 |
| Cd** | 2.225 ± 1.230 | 0.045‒6.4 | 0.245 ± 0.286 | 0.002‒2.09 | 1.077 ± 1.309 | 4.615 | 0.002‒6.4 |
| Cr | 2.545 ± 4.080 | 0.1‒16.6 | 2.465 ± 4.277 | 0.08‒35.7 | 2.498 ± 4.189 | 15.4 | 0.089‒35.7 |
| Cu** | 11.049 ± 6.277 | 0.54‒27.1 | 2.330 ± 5.468 | <LOD‒39.2 | 6.135 ± 7.255 | 22.85 | <LOD‒39.2 |
| Hg** | 0.010 ± 0.017 | <LOD‒0.132 | 0.055 ± 0.0619 | <LOD‒0.391 | 0.0370 ± 0054 | 0.167 | <LOD‒0.391 |
| Mn** | 43.97 ± 52.30 | 1.13‒407 | 18.95 ± 13.72 | 0.404‒63.8 | 29.87 ± 38.01 | 75.3 | 0.404‒407 |
| Ni** | 1.642 ± 1.211 | 0.32‒7.56 | 1.123 ± 1.219 | <LOD ‒8.82 | 1.338 ± 1.240 | 5.475 | <LOD‒8.82 |
| Pb | 0.655 ± 0.474 | <LOD‒3.1 | 0.539 ± 0.630 | <LOD ‒6.96 | 0.595 ± 0.562 | 1.872 | <LOD‒6.96 |
| Se* | 0.466 ± 0.514 | <LOD‒2.1 | 1.053 ± 2.157 | 0.1‒12 | 0.797 ± 1.676 | 7.135 | <LOD‒12 |
“*” and “**” mean that theelemental content between red seaweed and brown seaweed is significantly different at the level of P < 0.05 and P < 0.01, respectively.