Table 2 Number of cases, maximum, minimum and median at% values from XRF analyses.
From: Chemical variability of artificial stone powders in relation to their health effects
Element | N | Max | Min | Median |
|---|---|---|---|---|
Na | 17 | 2.982 | 0.017 | 0.209 |
Mg | 13 | 0.542 | 0.017 | 0.109 |
Al | 21 | 0.814 | 0.102 | 0.237 |
Si | 21 | 32.97 | 25.03 | 32.15 |
P | 18 | 0.020 | 0.004 | 0.008 |
S | 20 | 0.051 | 0.003 | 0.010 |
Cl | 11 | 0.407 | 0.023 | 0.071 |
K | 21 | 0.380 | 0.026 | 0.087 |
Ca | 20 | 9.200 | 0.014 | 0.166 |
Ti | 20 | 0.981 | 0.011 | 0.158 |
Cr | 8 | 0.014 | 0.004 | 0.009 |
Mn | 2 | 0.009 | 0.006 | 0.007 |
Fe | 21 | 0.288 | 0.007 | 0.052 |
Co | 12 | 0.061 | 0.005 | 0.009 |
Ni | 5 | 0.005 | 0.002 | 0.003 |
Cu | 13 | 0.046 | 0.004 | 0.010 |
Zn | 3 | 0.014 | 0.010 | 0.012 |
Sr | 5 | 0.006 | 0.0007 | 0.001 |
Zr | 10 | 0.002 | 0.0007 | 0.001 |
Sn | 4 | 0.007 | 0.003 | 0.006 |
Ba | 2 | 0.006 | 0.005 | 0.006 |
O | 21 | 66.73 | 63.73 | 66.60 |
