Table 1.
Sample | # Pb Particles | Particle # density (particles/mm2) | Total Mass Pb particles (× 10−15 g) | Mean Mass Pb particles (× 10−15 g) | Mass-density (× 10−15 g/mm2) |
---|---|---|---|---|---|
Ct4-c | 6 | 22 | 10.1 | 1.69 | 37.3 |
Ct7-c | 26 | 86 | 206 | 7.94 | 686 |
Pb5-c | 69 | 177 | 86.6 | 1.25 | 223 |
Pb7-c | 69 | 229 | 64.3 | 0.931 | 213 |
Note: values represent the ROI from cortex scans.