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EC number: 202-858-3 | CAS number: 100-50-5
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
- Endpoint:
- biodegradation in water: ready biodegradability
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- August 1979 till Februar 1983
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study with acceptable restrictions
- Principles of method if other than guideline:
- no data
- GLP compliance:
- not specified
- Oxygen conditions:
- aerobic
- Inoculum or test system:
- activated sludge, non-adapted
- Duration of test (contact time):
- 20 d
- Key result
- Parameter:
- % degradation (O2 consumption)
- Value:
- >= 71
- Sampling time:
- 20 d
- Details on results:
- pH value: 7.0
- Validity criteria fulfilled:
- not specified
- Interpretation of results:
- readily biodegradable, but failing 10-day window
- Conclusions:
- Within 20 days, a degradation of 71 % was determined for cyclohex-3 -ene-1 -carbaldehyde; and hence cyclohex-3 -ene-1 -carbaldehyde is considered to be "Readily Biodegradable but failing the 10-day window".
- Executive summary:
Within 20 days, a degradation of 71 % was determined for cyclohex-3 -ene-1 -carbaldehyde; and hence cyclohex-3 -ene-1 -carbaldehyde is considered to be "Readily Biodegradable but failing the 10-day window".
Reference
CSB: calculated 2618 mg/g, found 2549 mg/g = 97 %.
BSB-use: 2.4 mL/L; BSB at output (1 g/L): 1833 mg/g
Description of key information
Within 20 days, a degradation of 71 % was determined for cyclohex-3 -ene-1 -carbaldehyde; and hence cyclohex-3 -ene-1 -carbaldehyde is considered to be "Readily Biodegradable, but failing the 10-day window".
Key value for chemical safety assessment
- Biodegradation in water:
- readily biodegradable but failing 10-day window
- Type of water:
- freshwater
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