Table 3: Rare earth elements and lead concentration in hair of 95 children (μg/g).
Elements | s | M | P25 | P75 | |
La | 1.3465 | 3.4205 | 0.3907 | 0.2399 | 1.1505 |
Ce | 1.8336 | 4.3124 | 0.5958 | 0.3811 | 1.6591 |
Pr | 0.1393 | 0.2900 | 0.0489 | 0.0337 | 0.0337 |
Nd | 0.4052 | 0.7594 | 0.1646 | 0.1098 | 0.3574 |
Sm | 0.0395 | 0.0527 | 0.0226 | 0.0150 | 0.0364 |
Eu | 0.0090 | 0.0105 | 0.0060 | 0.0042 | 0.0097 |
Gd | 0.0265 | 0.0336 | 0.0184 | 0.0118 | 0.0296 |
Tb | 0.0028 | 0.0043 | 0.0020 | 0.0009 | 0.0030 |
Dy | 0.0149 | 0.0217 | 0.0112 | 0.0066 | 0.0151 |
Ho | 0.0028 | 0.0041 | 0.0020 | 0.0012 | 0.0027 |
Er | 0.0073 | 0.0110 | 0.0051 | 0.0028 | 0.0071 |
Tm | 0.0013 | 0.0019 | 0.0009 | 0.0005 | 0.0015 |
Yb | 0.0066 | 0.0088 | 0.0049 | 0.0030 | 0.0064 |
Lu | 0.0010 | 0.0017 | 0.0006 | 0.0003 | 0.0010 |
Y | 0.0679 | 0.0969 | 0.0497 | 0.0312 | 0.0672 |
Pb | 26.2245 | 71.1515 | 12.3451 | 6.5210 | 25.1090 |
Note: Concentration of all above elements did not distribute as normal.