Chemical hazards in drinking-water – sodium dichloroisocyanurate
Sodium Dichloroisocyanurate is considered in the WHO Guidelines for Drinking-water Quality.
The Guidelines for drinking water quality also consider for individual chemicals:
Aspects of analytical achievability [Section 8.3]
Technical achievability (through treatment and other means) [Section 8.4]
- Chemical safety of drinking-water: Assessing priorities for risk management
- Protecting groundwater for health
Other publications of interest
- Managing surface waters for health (in preparation)
Sodium dichloroisocyanurate is used as a disinfectant in water. It dissociates in water to form a number of chemical species, notably free chlorine and cyanuric acid. The GDWQ FTF meeting (Geneva, 2003) recommended that sodium dichloroisocyanurate be referred to JECFA and added to the rolling revision of the GDWQ. A guideline value for use in emergency situations would reassure those who need to use the disinfectant.
A background document and summary statement on sodium dichloroisocyanurate for publication in the second addendum to the Third Edition
Progress to date
The GDWQ WG meeting (Singapore, 2008) agreed on a path forward towards preparation of text for the Fourth Edition. The background document and the summary statement are now available.