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CHASE- ing Hazardous substances CHASE tool version 2.x

CHASE- ing Hazardous substances CHASE tool version 2.x. Where did cHASE come from?. CHASE 1.0 was first developed by HELCOM A parallel to the HELCOM Eutrophication Assessment Tool (HEAT) used to integrate the different parameters used in HELCOM when assessing eutrophication .

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CHASE- ing Hazardous substances CHASE tool version 2.x

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  1. CHASE-ingHazardoussubstancesCHASE toolversion 2.x

  2. WheredidcHASEcome from? • CHASE 1.0 wasfirstdeveloped by HELCOM • A parallel to the HELCOM EutrophicationAssessment Tool (HEAT) used to integrate the different parameters used in HELCOM whenassessingeutrophication. • CHASE 1.0 was a spreadsheet model whereall numbersweremanuallyentered! Used in the Integrated Thematicassessment of the Baltic Sea

  3. What is chase? CHASE is a tool for integratingdifferentchemicalmeasurements, biologicaleffectsand radionucleidemeasurements It is based on the contamination ratio (CR) betweenmeasuredvalue and targetvalue (e.g. EU WFD EQS target). The CR’s for individual components are ”averaged”, usuallydivided by the squareroot of n Differentclasses of CRscanbeused (e.g. the 3 mentionedabove) and aggregatedintooneintegrated CR

  4. OSPAR assessmentcriteria

  5. Chemical status • CHASE is based on 114 assessment units • Nested as follows: • Fish safe to eat (concentrations in fish < EC food limits) • Concentrations at backgroundlevels (concentration in biota < OSPAR or otherassessmentcriteria) • Healthy Wildlife (Biologicaleffectslikeintersex/imposex)

  6. CHASE Results PCB’shighest %-highCR’s (20%) Followed by metals (Pb, Hg) Nucleudies and DDT/DDE at 9% Organotin (8%) PAH (7%) Cd (5%) And a lot of othersubstances/biologicaleffects at <5%

  7. Harmony – chase 2.0 • CHASE development • Further developed for a subarea of the North Sea in the HARMONY project (Denmark, Norway, Germany, Sweden) • Data from partners collected in database, and calculations automated based on the database • Software is available from NIVA/JHA

  8. CHASE (in prep.)… • CHASE classifications for • sediments (panel A), • biota(panel B) and • bio-effects (panel C).  • Combiningsediments, biota and bio-effectsinto a final integratedclassification of chemical status based on a ‘one out, all out’ principle is presented in panel D. • Andersen, J.H., C. Murray, M.M. Larsen, N. Green, T. Høgåsen, K. Gustavson, E. Boalt, G. Garnaga, M. Haarich, J. Manio, J. Strand & S. Korpinen (in prep.): A tool for integratedassessment of chemical status.

  9. CHASE in emodnet 2 MFS • Matrices to include • Seawater vs. EU WFD EQS values? • Biota vs. EU WFD EQS/EU food/OSPAR targetvalues? • Sediment vs. OSPAR/US EPA targetvalues? • Parameters to include • Metals • PCB’s and organochlorinepesticides • New EU WFD EQS in biota (PFOS, PAHsetc)

  10. Plan for implementation • Test region in 2014 • Setup CHASE programme to read EMODnet file format (ODV) • Extract data from selected area (e.g. southern North Sea) • Perform QA and check data availability for the selected area • Make CHASE example based on EMODNET 2 data • Full CHASE for whole North Sea 2015 • Agree on assessment criteria for whole region • Extract and make CHASE dataset for e.g. fish, mussels, sediments – Discuss possibility of extending to other areas • Full CHASE for areas with target values 2016?

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