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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! Developed

  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. 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)

  5. 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%

  6. 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

  7. 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.

  8. 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)

  9. Open sea • Station • 80x80km grid • 62assessment units

  10. Coastal • Coastal stations • 20x20km grid • 189 AUs

  11. Coastal zoom

  12. Suggested First step (2014) Based on data-extracts of biota and sediment Test region in the southern-North Sea or Kattegat Setup CHASE programme to read EMODnet file format Perform QA and check data availability for the selected area Test different ways to integrate/aggregate data Grid size and forms – lessons learned in Harmony Preferred reporting format: EMODnet report?, AU scientific report?, scientific paper?

  13. Suggestedsecond step (2015) • Test CHASE 2.x with largerareas • Discussprefered parameters and targetvalues • Region based or general targetvalues? • Includelocaltargetvalues? • Normalisation procedures for water, biota and sediment? • Run CHASE 2.x for North Sea area • Discusshowresultsshouldbedisseminated • Discussotherseaareas for CHASE

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