Registration Dossier

Environmental fate & pathways

Monitoring data

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Administrative data

Endpoint:
monitoring data
Type of information:
other: survey of published water analyses
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Well-documented scientific publication.

Data source

Reference
Reference Type:
review article or handbook
Title:
Silica in streams and ground water.
Author:
Davis SN
Year:
1964
Bibliographic source:
Am. J. Sci. 262, 870-891.

Materials and methods

Principles of method if other than guideline:
survey of published water analyses from the United States Geological Survey or published by state agencies.
Type of measurement:
background concentration
Media:
surface water

Test material

Reference
Name:
Unnamed
Type:
Constituent

Results and discussion

Concentration
Country:
United States (the)
Substance or metabolite:
other: SiO2
Conc.:
ca. 14 mg/L
Remarks on result:
other: The median value in the US was reported to be 17 mg SiO2/l for streams

Applicant's summary and conclusion