Registration Dossier

Environmental fate & pathways

Additional information on environmental fate and behaviour

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Administrative data

Endpoint:
additional information on environmental fate and behaviour
Adequacy of study:
supporting study
Reliability:
other: conceptual model development. Reliability not applicable
Cross-reference
Reason / purpose:
reference to same study

Data source

Reference
Title:
Unnamed
Year:
2007

Materials and methods

Test guideline
Qualifier:
no guideline available
Principles of method if other than guideline:
1. Development of a conceptual model, exposure scenarios, effect evaluation and risk assessment protocol.
2. Implementation of the model and a set of examples based on generic European scenarios as well as a pan European probabilistic estimation covering the diversity observed for the European conditions.
GLP compliance:
no
Remarks:
Not applicable

Test material

Reference
Name:
Unnamed
Type:
Constituent

Results and discussion

Any other information on results incl. tables

Our results indicate that the simplified model offers acceptable estimations. More sophisticated models are obviously required for site specific assessment. In the sensitivity analysis conducted by Hanrahan et al (2001) for the Frome catchment human contribution and arable land emissions were the most important factors controlling P loading. Vighi et al. (1991) observed significant differences related to land slope.

The generic estimations produced by the model are based on a simplistic approach and does not cover local specific aspects, such as historic loads or the retention of P in the catchment area and the upstream river basin. However, the approach is considered suitable for a generic pan-European assessment. Thus, the developed model is considered sufficient for the generic estimations required for this study.

Applicant's summary and conclusion