Table 1.
Limits for heavy metal concentrations in green areas (Italian law D.lgs. 152/06).
| Metal | mg/kg | mM |
|---|---|---|
| Cadmium acetate | 2 | 0.0075 |
| Cobalt acetate | 20 | 0.08 |
| Mercury acetate | 1 | 0.0031 |
| Nickel chloride | 120 | 0.5 |
| Lead acetate | 100 | 0.264 |
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