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Registration Dossier
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EC number: 205-769-8 | CAS number: 150-76-5
Other distribution data
Administrative data
- Endpoint:
- other distribution data
- Type of information:
- experimental study
- Adequacy of study:
- disregarded due to major methodological deficiencies
- Reliability:
- 3 (not reliable)
- Rationale for reliability incl. deficiencies:
- other: Only the removal of the substance from water is measured, no indication of possible metabolisation/degradation impact is provided. Single bacteria is used, therefore the result can not be extrapolated to the distribution in the environment.
Data source
Reference
- Reference Type:
- publication
- Title:
- BIOACCUMULATION OF P-METHOXYPHENOL AND 4-ISOPROPYLPHENOL ON ACINETOBACTER CALCOACETICUS ANITRATUS
- Author:
- Zaim KK
- Year:
- 1 991
- Bibliographic source:
- Doga - Tr. J. of Engineering and Environmental Sciences. 15 (1991), 39-53
Materials and methods
Test guideline
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- The bioaccumulation of the test substance by sub-surface bacterial biomass was performed by single-solute bioaccumulation isotherm in static
bottle test procedure.
The bioaccumulation was determined by the ratio between the concentration in the filtrate at each sampling time and the initial concentration of the test substance. - GLP compliance:
- not specified
- Type of study:
- other: bioaccumulation by sub-surface bacterial biomass
- Media:
- other: water - bacterial biomass
Test material
- Reference substance name:
- Mequinol
- EC Number:
- 205-769-8
- EC Name:
- Mequinol
- Cas Number:
- 150-76-5
- Molecular formula:
- C7H8O2
- IUPAC Name:
- 4-methoxyphenol
- Details on test material:
- Identity: p-Methoxyphenol (no other information available).
Constituent 1
Results and discussion
Any other information on results incl. tables
Bioaccumulation on 1000 mg/L biomass at high concentration:
- stationary mode (185.44 µg/L): from 0 to 15% of removal of the initial concentration
- low nutrient mode (101.57 mg/L): maximum of removal of 48% of the inital concentration at 10h,
followed by a desorption
Bioaccumulation on 1000 mg/L biomass at low concentration:
- stationary mode (50.31 µg/L): maximum of 10% of removal of the initial concentration
- low nutrient mode (52.97 mg/L): maximum of 15% of removal of the inital concentration
Bioaccumulation on 500 mg/L biomass at high concentration:
- stationary mode (186.07 µg/L): maximum of 38% of removal of the initial concentration
- low nutrient mode (249.99 mg/L): maximum of removal of 10% of the inital concentration.
Bioaccumulation on 500 mg/L biomass at low concentration:
- stationary mode (61.42 µg/L): maximum of 35% of removal of the initial concentration
- low nutrient mode (59.98 mg/L): maximum of 10% of removal of the inital concentration
Bioaccumulation on 300 mg/L biomass at high concentration:
- stationary mode (184.93 µg/L): maximum of 45 % of removal of the initial concentration
- low nutrient mode (222.26 mg/L): maximum of removal of 10% of the inital concentration.
Bioaccumulation on 300 mg/L biomass at low concentration:
- stationary mode (95.42 µg/L): maximum of 15% of removal of the initial concentration
- low nutrient mode (121.23 mg/L): maximum of 5% of removal of the inital concentration.
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