Registration Dossier

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

The test item hexanal (+ 0,05 %, alpha-Tocopherol as stabilizer) was tested under aerobic conditions in the Manometric Respirometry Test following OECD 301F / EU C.4-D using a concentration of 37 mg test item/L (equivalent to a theoretical oxygen demand of 99.95 mg O2/L). Activated sludge was used as inoculum. The test was left running for 28 days. All validity criteria were met. The positive control reached the pass level of 60 % on day 3 (criterion: < 14). 

The following data could be determined for the test item hexanal 0,05 % TOCO:

 

10-day-window: day 1–11

degradation at the end of 10-day-window: 63 %

degradation at the end of the test: 69 %

 

Therefore, when applying the 10-day-window, hexanal is classified as readily biodegradable following OECD 301F/EU C.4-D.

Additional information