What this document is
The UK's Drinking Water Inspectorate commissioned this research report, published in January 2014, to examine the chemical forms that manganese takes when present in treated drinking water. Manganese occurs naturally in many water sources, and the forms it takes, whether dissolved or bound into particles, affect how it behaves in the treatment process and whether it can cause discoloration or taste problems once water reaches customers' taps.
Running to 133 pages, the study falls under the DWI's ongoing chemical monitoring research program, which funds technical work supporting the regulation of drinking water quality across England and Wales.
Manganese speciation research of this kind feeds into wider international work on the health and aesthetic effects of manganese in drinking water, including reviews published separately by the World Health Organization, and helps water companies and regulators judge which treatment approaches are most effective against the specific chemical forms of manganese found in a given source.
Where to find it
Available from Drinking Water Inspectorate.