WG 3: Impact assessment

1. COST 636 Xenobiotics in the urban water cycle WG 3: Impact assessment • Conceptual framework for impact assessment for xenobiotics in the urban water cycle • Biotests as analytical tool • Are we measuring the right thing? COST 636 Xenobiotics in the Urban Water Cycle – Vienna 25-27 September 2006 45

2. WG3 in Vienna • Why biotests? • Which tests? • How to perform them? (WET, fractions, in situ) • Sampling • Biotest results in a regulatory context • The TGD-RA paradigm for complex samples • Links to WFD COST 636 Xenobiotics in the Urban Water Cycle – Vienna 25-27 September 2006 45

3. WG3 in Vienna:Discussion with other WGs • Source tracking – gaining knowledge about composition • Phys-chem interactions – which “form” has XOCs • Treatment efficiency – toxicity before and after cleaning after treatment: Use of biotests • Concentrations – continuous discharge vs. intermittent discharges: Biological effects of pulses • Chemicals vs effects – biotest as screening tools for identification & ranking  extrapolation • Detection vs availability (presence, uptake, effects) • QSARs/QSPRs COST 636 Xenobiotics in the Urban Water Cycle – Vienna 25-27 September 2006 45

4. Action plan 2007-2008:Aims and output of WG3 • Gaps in knowledge + expertises in WG3 (+other) = new projects • Output of WG3 = Projects • Research projects • Mobility of HR • Courses COST 636 Xenobiotics in the Urban Water Cycle – Vienna 25-27 September 2006 45

5. Expertises in WG3 45

6. Action plan 2007-2008 • Plan for 2007 • Meeting in March 2007 – in Karlsruhe • Meeting in autumn 2007 – where? • Activities 2007 & 2008 • Themes – 2 meeting/yr • Conceptual framework – building blocks and context COST 636 Xenobiotics in the Urban Water Cycle – Vienna 25-27 September 2006 45

7. Action plan 2007-2008: Themes • Effects of selected chemicals in WG1/WG4 – which compounds? • Treatment (solid & aq. waste streams) and relation to effect assessment • Background concentrations and reference conditions • The role of impact assessment in urban water management • Basic definitions in relation to conceptual impacts assessment framework – focus: • Communication and concrete facts • Strategy • Test systems – Fraunhofer Institute (invited speaker?) • Bioavailability! – Vera distributes document • Sediments • How to derive environmental quality criterias • EU vs US vs Canada COST 636 Xenobiotics in the Urban Water Cycle – Vienna 25-27 September 2006 45

8. Action plan 2007-2008:Mobility and dissemination • Identification of opportunities for exchange of human resources • Identification of common topics for training courses • Aim • Structure • Target group • Case scenarios – ”internal short-course” for WG3/4 meeting • Real data • ”a real regulator’s” perspective • Theory in practice • WG interaction! • Task force: Anders, Ivana 1or2, Ralph COST 636 Xenobiotics in the Urban Water Cycle – Vienna 25-27 September 2006 45

9. Action plan 2007-2008:WG3 & WG4 common meeting • Next meeting: • Chemical analyses vs. Biotest for hazard identification, ranking and risk assessment • Monitoring and the regulatory context – gaps and beyond! • ”The Game of Gaps” • Invited speaker… WFD – in practice & with a chemical perspective COST 636 Xenobiotics in the Urban Water Cycle – Vienna 25-27 September 2006 45