Registration Dossier

Environmental fate & pathways

Monitoring data

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Administrative data

Endpoint:
monitoring data
Type of information:
migrated information: read-across based on grouping of substances (category approach)
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: see 'Remark'
Remarks:
Member states reported data on monitored concentrations to the EU Commission that were supposed to be relevant for general water and sediment quality. However, analysis has demonstrated that the data were not always answering that definition. Still, this data review was at EU scale was unique and is therefore reported.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2009
Report Date:
2009

Materials and methods

Test guideline
Qualifier:
no guideline followed
Principles of method if other than guideline:
Member states were asked by the EU Commission to report monitored data on substances in sediment, that were to be relevant for assessing the general quality of the sediment. Data were processed by the International Office of Water and INERIS.
GLP compliance:
not specified
Type of measurement:
other: data reflect general sediment quality
Media:
sediment

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
Data were reported for "Zinc". So, no distinction was made between different sources/forms of zinc resulting in the final measured concentration.

Study design

Details on sampling:
data were compiled for 1958 sampling stations throughout the EU, on a total of 6312 analyses. Data are from the period 2000-2008.

Results and discussion

Concentration
Country:
other: EU
Location:
90P for the EU as a whole
Substance or metabolite:
substance
Conc.:
270 mg/kg dw
Remarks on result:
other: 2mm fraction concentration
Details on results:
Data are reported from the period 2000-2008. In some countries (e.g. Cyprus, Romania, Slovakia,..) sampling points are influenced by industrial point source emissions, and/or emissions from historical mining, and/or local metal-enriched geology.

Applicant's summary and conclusion

Conclusions:
Given the scale and recent date of the study, the results are considered relevant for assessing current sediment quallity in the EU. It has to be noted that for several countries, the dataset contains data from sampling sites, specially chosed to monitor emissions from industrial point sources. As such, the data do not always reflect general sediment quality, but rather the local situation.
Executive summary:

The overall EU 90P value for zinc concentrations in sediment, based on 1958 sampling stations, is 270 mg/kg DW.