1. Council Directive of 3 November 1998 on the quality of water intended for human consumption. Off J Eur Union L 330: 32-54.
2. Directive (EU) 2020/2184 of the European Parliament and of the Council of 16 December 2020 on the quality of water intended for human consumption. Off J Eur Union L 435: 1-62.
3. WHO (1996) Guidelines for drinking-water quality, 2nd ed. Health Criteria and Other Supporting Information, vol. 2. World Health Organization, Geneva.
4. WHO (2008) Guidelines for drinking-water quality, 3rd ed. Recommendations. Incorporating 1st and 2nd Addenda, vol.1. World Health Organization, Geneva.
5. WHO (2017) Guidelines for drinking-water quality, 4th ed. Incorporating the first addendum. Geneva: World Health Organization.