Registration Dossier

Administrative data

Endpoint:
monitoring data
Type of information:
experimental study
Adequacy of study:
supporting study
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
secondary literature
Remarks:
Relatively well documented literature paper; reliability unassignable because sampling schedule, methods, storage etc. not validated.

Data source

Reference
Reference Type:
review article or handbook
Title:
The Behaviour of Phosphonates in Wastewater Treatment Plants of Switzerland
Author:
Nowack B
Year:
1998
Bibliographic source:
Wat. Res. Vol. 32, No. 4, pp 1271-1279

Materials and methods

Media:
surface water

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
not specified

Results and discussion

Any other information on results incl. tables

The substance was detected in Swiss waste water treatment
plants in a study conducted in 1996.  Concentrations in the
influent were between <0.03 mg/l to 0.46 mg/l.  The highest
concentration found was associated with a significant input
from the textile industry.  An average of 85% removal is
observed based on effluent concentrations, for this plant. 
For the other plants, the substance could not be detected in
effluent.

Applicant's summary and conclusion