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Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Description of key information

Two long-term tests were reported in the RAR (2008).  NOEC-values of 2.7 and 31 mg/l were reported for blue-green and green algae, respectively. 
Both were 8-day tests which are not cmparable to current guideline duration (72 h).

Key value for chemical safety assessment

EC10 or NOEC for freshwater algae:
2.7 mg/L

Additional information

The algae test results are based on 8-day tests which are not fully equivalent to algae growth inhibition data from standard tests measuring the impact on exponentially growing algae. However for the purposes of classification and risk assessment, these data are considered sufficient. In addition furfural is readily biodegradable which precludes significant long term aquatic exposure.