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EC number: 200-001-8
CAS number: 50-00-0
Depending on local conditions and existing concentrations, disturbances in the biodegradation process of activated sludge are possible
In an activated sludge respiration inhibition test a 3h-EC50 of 19
mg/L was found (Klecka et al., 1985). This result is supported by
studies on single species. Studies on the toxicity of formaldehyde
towards microorganisms in sewage treatment plants demonstrated that this
substance was harmful to the test organisms.
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