European Union standards
The following parametric standards are included in the Drinking Water Directive and are expected to be enforced by appropriate legislation in every country in the European Union. Simple parametric values are reproduced here, but in many cases the original directive also provides caveats and notes about many of the values given.
- Acrylamide 0.10 μg/l
- Antimony 5.0 μg/l
- Arsenic 10 μg/l
- Benzene 1.0 μg/l
- Benzo(a)pyrene 0.010 μg/l
- Boron 1.0 mg/l
- Bromate 10 μg/l
- Cadmium 5.0 μg/l
- Chromium 50 μg/l
- Copper 2.0 mg/l
- Cyanide 50 μg/l
- 1,2-dichloroethane 3.0 μg/l
- Epichlorohydrin 0.10 μg/l
- Fluoride 1.5 mg/l
- Lead 10 μg/l
- Mercury 1.0 μg/l
- Nickel 20 μg/l
- Nitrate 50 mg/l
- Nitrite 0.50 mg/l
- Pesticides 0.10 μg/l
- Pesticides – Total 0.50 μg/l
- Polycyclic aromatic hydrocarbons 0.10 μg/l Sum of concentrations of specified compounds;
- Selenium 10 μg/l
- Tetrachloroethene and Trichloroethene 10 μg/l Sum of concentrations of specified parameters
- Trihalomethanes — Total 100 μg/l Sum of concentrations of specified compounds
- Vinyl chloride 0.50 μg/l
in Wikipedia