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50 participants from 18 countries + EC

CIS workshop – 11&12 June 2007 - Paris national classification systems for the assessment of ecological status of surface waters. 50 participants from 18 countries + EC 11 presentations : DGENV, Austria, Estonia, Czech Republic, Germany, the Netherlands, Sweden, UK, France

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50 participants from 18 countries + EC

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  1. CIS workshop – 11&12 June 2007 - Parisnational classification systems for the assessment of ecological status of surface waters CIS workshop : assessment of the ecological status. 50 participants from 18 countries + EC 11 presentations : DGENV, Austria, Estonia, Czech Republic, Germany, the Netherlands, Sweden, UK, France 3 sessions : ecological significance and combination of the biological quality elements role and place of the physico-chemical elements effect of aggregation, uncertainty, confidence & precision

  2. General principles set in the guidance are valid • Differencies in implementing in practice the guidance • Part of those differencies is coming from different levels of maturity • How to ensure the comparability of MS approach for classification • Focus on practical aspects • Selection of QE can influence the results of the classification CIS workshop : assessment of the ecological status.

  3. Main conclusion • State of play : different approaches and methods within national classification systems (aggregation of data, combination of QE, automatic OOAO on BQE, use of expert judgement, place of chemistry…) • Therefore, despite the huge ongoing work in the frame of IC, we have no final guarantee of « comparable levels of ambition » between MS CIS workshop : assessment of the ecological status.

  4. Possible follow-up • Need for common views about the classification : « complement » to the classification guidance (in the frame of ECOSTAT activity 4) ? • If agreement, the complement could be based on practical case-studies, in 3 directions : • How to ensure comparability between MS whereas different QE can be used for the classification ?? • How to manage risks of misclassification (combination of biological elements, checking procedure for chemistry) ? • How to better communicate about the results of the final assessment ? CIS workshop : assessment of the ecological status.

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