Water Sanitation Health

Chemical hazards in drinking-water - microcystin-LR

Microcystin-LR is considered in the WHO Guidelines for Drinking-water Quality. You can link from here to:

The Guidelines for drinking water quality also consider for individual chemicals:

Rolling revision of the WHO Guidelines for Drinking-water Quality

Analytical and technical achievability for microcystin

Background

Section 8.3 of the Guidelines for Drinking-water Quality provides information on the analytical achievability of all chemicals in the Guidelines for Drinking-water Quality except for microcystin. This needs to be included.

Expected end-product(s)

Additional text for section 8.3 (analytical) and section 8.4 (treatment) of the Guidelines for Drinking-water Quality, for inclusion in second addendum of Third Edition

Progress to date

The Guidelines for Drinking-water Quality Working Group meeting (Geneva, 2004) agreed to a plan of work. The Guidelines for Drinking-water Quality Working Group meeting (Geneva, 2005) reviewed and approved the text for the second addendum and agreed to include a treatment section in the second addendum, which has already been prepared.

The draft document is now available for review. Comments are welcome following the format on the comment sheet, below.

Comments on the draft sections should be sent before 1 August 2007 to gdwqmicrocystin@who.int

Other publications of interest

  • Chemical safety of drinking-water: Assessing priorities for risk management (in preparation)
  • Managing surface waters for health (in preparation)
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