Water Sanitation Health

Chemical hazards in drinking-water

The WHO Guidelines for Drinking-Water Quality include facts sheets (Chapter 12) [pdf 266kb] and comprehensive review documents for many individual chemicals. For many of these, guideline values are derived. All of these can be accessed through the following alphabetical list. Summary tables of guideline values are also available (Annex 3) [pdf 816kb].

The WHO Guidelines also provide guidance on the management of chemicals. Management approaches vary according to the source of the chemical as described in Chapter 8 [pdf 569kb] of the Guidelines.

Other publications of interest:

Chemical safety of drinking-water: Assessing priorities for risk management.

Protecting groundwater for health: Managing the quality of drinking-water source.

Water Safety Plans (WSPs).