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Environmental fate & pathways

Monitoring data

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Administrative data

Endpoint:
monitoring data
Type of information:
experimental study
Adequacy of study:
other information
Study period:
1981
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: see 'Remark'
Remarks:
Acceptable, study with sufficient documentation which meets basic scientific principles and contains enough detail to be able to judge the results reliable as a contribution to the understanding of historic environmental distribution of this substance.

Data source

Reference
Reference Type:
publication
Title:
Analysis of organic substance in highly polluted water by mass spectrometry.
Author:
Yasuhara, A. et al.
Year:
1981
Bibliographic source:
Environ. Sci. Technol. 15, 570 - 3.

Materials and methods

Test guideline
Qualifier:
no guideline available
Principles of method if other than guideline:
Analysis of samples of water from a polluted river. Samples prepared by steam-distillation with diethyl ether and vacuum distillation after freezing and analysing the distillate. Analysis was by GC-MS.
GLP compliance:
not specified
Type of measurement:
concentration at contaminated site
Media:
surface water

Test material

Constituent 1
Chemical structure
Reference substance name:
Ethanol
EC Number:
200-578-6
EC Name:
Ethanol
Cas Number:
64-17-5
Molecular formula:
CH3CH2OH
IUPAC Name:
ethanol
Details on test material:
not applicable

Results and discussion

Concentrationopen allclose all
Country:
Japan
Location:
Matsubara region of Tatsuno City. Hayadashi river
Substance or metabolite:
substance
Conc.:
ca. 4.02 ppm
Remarks on result:
other: From the vacuum distilled sample
Country:
Japan
Location:
Matsubara region of Tatsuno City. Hayadashi river
Substance or metabolite:
substance
Conc.:
1.97 ppm
Remarks on result:
other: from the steam distilled sample

Applicant's summary and conclusion

Executive summary:

Samples of water from a highly polluted river in Japan taken around 1980 were found to contain between 2 and 4ppm of ethanol. Because this data is quite old, it is unclear if it has any relevance to current levels of ethanol in the aquatic environment.