2,3-epoxypropyl phenyl ether

Biodegradation in water: screening tests

Administrative data

Endpoint:

biodegradation in water: inherent biodegradability

Type of information:

experimental study

Adequacy of study:

key study

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

other: Guideline study with acceptable restrictions

Data source

Reference

Reference Type:

publication

Title:

Unnamed

Year:

1992

Report date:

1992

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

OECD Guideline 302 C (Inherent Biodegradability: Modified MITI Test (II))

GLP compliance:

no

Test material

Test material information

Constituent 1

Reference substance name:

2,3-epoxypropyl phenyl ether

EC Number:

204-557-2

EC Name:

2,3-epoxypropyl phenyl ether

Cas Number:

122-60-1

Molecular formula:

C9H10O2

IUPAC Name:

2-(phenoxymethyl)oxirane

Details on test material:

- Name of test material (as cited in study report): phenyl glycidyl ether

Study design

Oxygen conditions:

aerobic

Inoculum or test system:

mixture of sewage, soil and natural water

Details on inoculum:

- Source of inoculum/activated sludge (e.g. location, sampling depth, contamination history, procedure): In March, June, September, and December, sludge was sampled at the following 10 places in Japan: 1. Fukogawa city sewage plant, 2. Fukashiba industry sewage plant, 3. Nakahama city sewage plant, 4. Ochiai city sewage plant, 5. Kitakami river, 6. Shinano river, 7. Yoshino river, 8. Lake Biwa, 9. Hiroshima bay, 10. Dookai bay; sampling: 1. City sewage: Returned sludge from sewage plants was taken. 2. Rivers, lake and sea: Surface water and surface soil which were in contact with atmosphere were collected
- Concentration of sludge: 100 mg/L

Duration of test (contact time):

28 d

Initial test substance concentration

Initial conc.:

30 mg/L

Based on:

test mat.

Parameter followed for biodegradation estimation

Parameter followed for biodegradation estimation:

O2 consumption

Reference substance

Reference substance:

aniline

Results and discussion

% Degradation

% Degradation 1

Parameter:

% degradation (O2 consumption)

Value:

32 - 62

Sampling time:

28 d

% Degradation 2

Parameter:

% degradation (TOC removal)

Value:

20 - 60

Sampling time:

28 d

% Degradation 3

Parameter:

% degradation (test mat. analysis)

Value:

97 - 98

Sampling time:

28 d

Applicant's summary and conclusion

Interpretation of results:

other: not readily biodegradable