Research Article
[Retracted] Chemical Speciation and Potential Mobility of Heavy Metals in the Soil of Former Tin Mining Catchment
Table 4
Correlation between pH, Carbonates, organic matter content, and clay percentages with contents of heavy metals (mg/kg).
| Metals with fractions | pH | CO3 2− | OM | Clay | | | | % | |
| Pb | Exchangeables | −0.280 | 0.324 | 0.487 | 0.123 | Carbonates | 0.653 | 0.086 | −0.561 | −0.572 | Oxides | −0.353 | −0.361 | −0.235 | 0.183 | Organics | −0.686 | 0.138 | 0.466 | 0.651 | Residuals | 0.141 | 0.282 | 0.077 | 0.096 |
| Cu | Exchangeables | −0.223 | 0.558 | 0.221 | 0.246 | Carbonates | 0.484 | 0.138 | −0.348 | −0.049 | Oxides | −0.331 | 0.268 | 0.530 | 0.278 | Organics | −0.292 | 0.420 | 0.698 | 0.416 | Residuals | 0.408 | 0.085 | −0.137 | −0.077 |
| Cr | Exchangeables | −0.198 | 0.174 | 0.613 | 0.150 | Carbonates | 0.404 | −0.176 | −0.232 | 0.051 | Oxides | −0.375 | −0.474 | −0.037 | 0.251 | Organics | −0.341 | 0.094 | 0.193 | 0.293 | Residuals | 0.243 | −0.044 | −0.166 | −0.039 |
| Zn | Exchangeables | −0.223 | 0.558 | 0.221 | 0.246 | Carbonates | 0.484 | 0.138 | −0.348 | −0.049 | Oxides | −0.331 | 0.268 | 0.530 | 0.278 | Organics | −0.292 | 0.420 | 0.698 | 0.416 | Residuals | 0.408 | 0.085 | −0.137 | −0.077 |
| As | Exchangeables | −0.198 | 0.174 | 0.613 | 0.150 | Carbonates | 0.404 | −0.176 | −0.232 | 0.051 | Oxides | −0.375 | −0.474 | −0.037 | 0.251 | Organics | −0.341 | 0.094 | 0.193 | 0.293 | Residuals | −0.223 | 0.558 | 0.221 | 0.246 |
| Sn | Exchangables | 0.484 | 0.138 | −0.348 | −0.049 | Carbonates | −0.331 | 0.268 | 0.530 | 0.278 | Oxides | −0.292 | 0.420 | 0.698 | 0.416 | Organics | 0.408 | 0.085 | −0.137 | −0.077 | Residuals | −0.198 | 0.174 | 0.613 | 0.150 |
|
|