Element-period | Na | Confidence interval (ā95%) | Confidence interval (+95%) | Median (µgāmā3) | p valueb |
K-2004 | 9 | 0.9343 | 1.2324 | 1.1000 | 0.09 |
K-2009 | 10 | 1.0270 | 1.8920 | 1.5123 | |
Cr-2004 | 9 | * | 0.0184 | 0.0000 | 0.57 |
Cr-2009 | 10 | 0.0015 | 0.0034 | 0.0024 | |
Ni-2004 | 9 | 0.0029 | 0.0149 | 0.0100 | 0.006 |
Ni-2009 | 10 | 0.0008 | 0.0017 | 0.0012 | |
Cu-2004 | 9 | 0.0044 | 0.0112 | 0.0100 | 0.63 |
Cu-2009 | 10 | 0.0021 | 0.0171 | 0.0063 | |
Zn-2004 | 9 | 0.0430 | 0.0592 | 0.0500 | 0.003 |
Zn-2009 | 10 | 0.0248 | 0.0418 | 0.0324 | |
Pb-2004 | 9 | 0.0044 | 0.0112 | 0.0100 | 0.96 |
Pb-2009 | 10 | 0.0042 | 0.0112 | 0.0067 | |
S-2004 | 9 | 0.4021 | 0.8535 | 0.5500 | 0.53 |
S-2009 | 10 | 0.5093 | 0.9148 | 0.6308 | |
Cl-2004 | 9 | 0.0904 | 0.2363 | 0.1300 | 0.001 |
Cl-2009 | 10 | 0.0128 | 0.0617 | 0.0241 |