Research Article
Potentially Toxic Elements and Health Risk Assessment in Farmland Systems around High-Concentrated Arsenic Coal Mining in Xingren, China
Figure 4
Concentration of Cr, Pb, Cu, As (mg·kg−1) for the nail (a), hair (b), and blood (c) samples for females and males in local residents from mining areas.
| (a) |
| (b) |
| (c) |