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2.6.3. Rationale uncertainty
In surface waters, ecotoxicologically-based effect thresholds were determined to assess exceedance rates at monitoring sites. Those thresholds indicate a potential pollution by pesticide substances affecting communities in aquatic ecosystems.
In groundwater, exceedances were assessed against the 0.1ug/l quality standard set down in the Groundwater Directive. No regulated quality standards for non-relevant metabolites are available and thus excluded from the assessment.
2.7. Data sources
- Waterbase – Water Qualityeea.europa.eu/data-and-maps/data/waterbase-water-quality-icm-1 compiled and processed by European Environment Agency (EEA)
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Previous comments
First paragraph: As mentioned in one of our comments above, for some pesticides (and metabolites) the precautionary value of 0.1 µg/L was used as lowest AA-EQS to calculate exceedance rates. This is in contradiction to the WFD CIS guidance and therefore the next lowest ecotox-based EQS value from a MS should be used in these cases.
Comment from Germany, Federal State Saxonia to 2.7 Data sources:
Currently PSM active substances are not systematically reported within the framework of WISE6 (SoE), but only on a voluntary basis. As far as we know, there is currently no basis for data provision for nrM. There is no corresponding coding, nor is there a possible core parameter set. In order to have a better data basis for developing the indicator in the future, it would be desirable to include these requirements in the data flow for WISE6.
Comment from Germany, Federal State Bavaria to 2.7 Data sources:
It would be appreciated if the water quality status reportet according to the WFD for water bodies could be used for the indicator instead of data from monitoring sites of SoE-Reporting. Water bodies cover the whole landscape of a country and are monitored representative with a large number of monitoring sites. SoE-Reporting instead cover only watersheds of selected monitoring sites in usually bigger rivers/lakes. In addition WFD set requirements (e.g. analytical standards) which should result in more comparable data.