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Ecotoxicological information

Toxicity to microorganisms

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Description of key information

In the OECD guildeline (209) study activated sludge of a predominantly domestic sewage was exposed to 10, 100 and 1000 mg/l TMP for 3h in static freshwater (pH 7.5 +/- 0.5). The EC50 and NOEC are >= 1000 mg/l.

Key value for chemical safety assessment

EC50 for microorganisms:
1 000 mg/L
EC10 or NOEC for microorganisms:
1 000 mg/L

Additional information