Cyclohex-3-ene-1-carbaldehyde

Biodegradation in water: screening tests

Link to relevant study record(s)

Reference

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

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

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".

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