Measure before drawing conclusions
A reliable assessment identifies the origin of the sample, the analysed parameters, the method and the date. It also considers storage, distribution and maintenance because quality can change throughout the system.
Verification must continue
Water Security is not a single snapshot. It requires operating criteria, trained personnel, records and periodic controls appropriate to the intended use.
This content summarises and contextualises information from the linked source. It is educational and does not replace laboratory analysis, medical assessment or recommendations from the competent authority.
View the WHO drinking-water fact sheet →