Table 12.
Heavy metal limits (mg/kg) in compost for European countries with compost rules as taken on from [99].
| Element | Countries | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| A | A * Class 2 ** |
B Agr |
B Park |
CH | DK | F | D | I | NL | NL | SP | C A, AA |
|
| As | - | - | - | - | - | 25 | - | - | 10 | 25 | 15 | - | 13 |
| Cd | 4.0 | 1 | 5 | 5 | 3 | 1.2 | 8 | 1.5 | 1.5 | 2 | 1 | 40 | 3 |
| Cr | 150 | 70 | 150 | 200 | 150 | - | - | 100 | 100 | 200 | 70 | 750 | 210 |
| Co | - | - | 10 | 20 | 25 | - | - | - | - | - | - | - | 34 |
| Cu | 400 | 100 | 100 | 500 | 150 | - | - | 100 | 300 | 300 | 90 | 1750 | 100 |
| Pb | 500 | 150 | 600 | 1000 | 150 | 120 | 800 | 150 | 140 | 200 | 120 | 1200 | 150 |
| Hg | 4 | 1 | 5 | 5 | 3 | 1.2 | 8 | 1 | 1.5 | 2 | 0.7 | 2.5 | 0.8 |
| Ni | 100 | 60 | 50 | 100 | 50 | 45 | 200 | 50 | 50 | 50 | 20 | 400 | 62 |
| Se | - | - | - | - | - | - | - | - | - | - | - | - | 2 |
| Zn | 1000 | 400 | 1000 | 1500 | 500 | - | - | 400 | 500 | 9000 | 280 | 4000 | 500 |
(A) = Austria, (B) = Belgium, (C) = Canada, (DK) Denmark, (F) France, (D) = Germany, (I) = Italy, (NL) = Netherlands, (SP) = Spain, (SW) = Switzerland. * Calculated on 30% organic matter basis, ** Class 2 versus Class 1 or Class A versus Class AA. Agr = Agricultural use, Park = Horticultural use.