Table 1.
National discharge limits for total Cr and Cr (VI) concentrations in wastewaters, expressed as mg L−1 (adapted from [18]).
| Member State | Austria 1 | Belgium 1,2,3 | Croatia 3 | Cyprus 4 | Czech Republic 1,2 | Denmark 3 |
| Total Cr | 0.5–3 | 0.5–5 | 1–4 | 0.5 | 0.5–1 | 0.001–0.3 |
| Cr (VI) | - | 0.1–1 | 0.1 | 0.1 | 0.1–0.3 | - |
| Member State | Estonia 4 | Finland 4 | France | Germany 1 | Greece 3,* | Hungary 1,3 |
| Total Cr | 0.5 | 0.7 | 0.5 | 0.1–0.5 | 0.6–1.5 | 0.2–1 |
| Cr (VI) | 0.1 | 0.2 | 0.1 | 0.05–0.5 | - | 0.1–0.5 |
| Member State | Ireland | Italy 3 | Lithuania 3 | Luxembourg | Malta | The Netherlands 1 |
| Total Cr | 0.5 | 2–4 | - | 0.5 | 0.5 | 0.5 |
| Cr (VI) | 0.1 | 0.2 | 0.1–0.2 | 0.1 | 0.1 | 0.1–2 |
| Member State | Norway | Poland 1 | Portugal | Sweden 4 | Slovak Republic 1 | Slovenia 1 |
| Total Cr | - | - | 2 | 0.5 | 0.5–1 | 0.5–1 |
| Cr (VI) | 0.05 | 0.05–0.5 | 0.1 | 0.1 | 0.1 | 0.1 |
| Member State | Spain | Sweden 4 | - | - | - | - |
| Total Cr | 5 | 0.5 | - | - | - | - |
| Cr (VI) | 0.3 | 0.1 | - | - | - | - |
1 Discharge limit varies depending on industrial type; 2 regional policy; 3 limit depends on the type of receiving water body; 4 case-specific regulation; * average monthly discharge limit (average daily discharge is double).