Metal (ppm) | Achatina achatina | Achatina marginate | Achatina fulica | Standard* |
---|---|---|---|---|
Pb | ||||
 Mean ± SD | 0.0007 ± 0.003 | 0.003 ± 0.005 | 0.0002 ± 0.005 | 0.01 |
 Median (IQR) | 0 (0) | 0 (0.003) | 0 (0) |  |
Cd | ||||
 Mean ± SD | 0.001 ± 0.002 | 0.0003 ± 0.0006 | 0.002 ± 0.001 | 0.03 |
 Median (IQR) | 0.001 (0.002) | 0.00 (0) | 0.002 (0.002) |  |
Hg | ||||
 Mean ± SD | 0.002 ± 0.007 | 0.026 ± 0.014 | 0.032 ± 0.016 |  |
 Median (IQR) | 0.022 (0.010) | 0.024 (0.020) | 0.034 (0.010) |  |
Zn | ||||
 Mean ± SD | 0.006 ± 0.006 | 0.002 ± 0.003 | 0.008 ± 0.006 | 3.00 |
 Median (IQR) | 0.003 (0.010) | 0 (0.001) | 0.010 (0.010) |  |
Ni | ||||
 Mean ± SD | 0.014 ± 0.013 | 0.016 ± 0.020 | 0.009 ± 0.008 |  |
 Median (IQR) | 0.01 (0.019) | 0.01 (0.025) | 0.01 (0.015) |  |
Mg | ||||
 Mean ± SD | 0.075 ± 0.061 | 0.112 ± 0.058 | 0.097 ± 0.062 | 20.0 |
 Median (IQR) | 0.10 (0.09) | 0.13 (0.07) | 0.12 (0.11) |  |
Mn | ||||
 Mean ± SD | 0.0001 ± 0.0004 | 0.0004 ± 0.0006 | 0.0001 ± 0.0004 | 0.20 |
 Median (IQR) | 0 (0) | 0 (0.001) | 0 (0) |  |
Cu | ||||
 Mean ± SD | 0.01 ± 0.009 | 0.013 ± 0.009 | 0.015 ± 0.012 | 2.00 |
 Median (IQR) | 0.01 (0.01) | 0.01 (0.01) | 0.01 (0.02) |  |