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Stephanie Bopp - GD on aquatic ecotoxicology
 

Stephanie Bopp - GD on aquatic ecotoxicology

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    Stephanie Bopp - GD on aquatic ecotoxicology Stephanie Bopp - GD on aquatic ecotoxicology Presentation Transcript

    • GD on Aquatic Ecotoxicology Stephanie Bopp, Maria Arena, Franz StreisslECPA-IBMA workshop – EFSA evaluation of PPPs - 26 April 2012 1
    • Background• Mandate received in December 2008• Consultation with Risk Managers via questionnaire end 2008• Public Consultation on existing SANCO GDs for Aquatic and Terrestrial Ecotoxicology Oct-Dec 2008 report: EFSA Journal 2009; 7(11):1375 [129 pp.].• Major needs identified for revision: – Harmonisation, therefore started in one WG for both mandates – Before start more detailed specific protection goals are needed, therefore work on „Opinion on specific protection goals“ (EFSA Journal 2010; 8(10):1821) 2
    • Background (cont.) Other general suggestions from the public consultation: – Consider multiple exposure – Clear definition and harmonisation of triggers – Consider other organisms not covered by the current scheme (amphibians, marine organisms), which need to be representative and sensitive – Reconsider recovery (time frames, multiple applications) 3
    • Analysis of current GD Aquatic Ecotoxicology (SANCO/3268/2001)• Update needed due to new Regulation (1107/2009)• Update needed considering new Data Requirements• Appropriate linking of exposure and effect assessment• More detailed guidance on higher tier RA, e.g. – Incorporating advise on methods to use when data are available on several species – Species Sensitivity Distributions (SSDs) – Refined exposure tests – Detailed guidance on mesocosm studies (design and evaluation) – Effect modelling approaches 4
    • Revision GD Aquatic EcotoxicologyThe need for a modular approach:• to cope with the complexity of the revision• start with updating practical guidance on topics for which “building blocks” are available• update in a later stage practical guidance on topics for which the “building blocks” are under construction 5
    • Revision GD Aquatic Ecotoxicology1. Tiered risk assessment procedure for water organisms in edge-of-field surface waters2. Combined exposure and effect modelling approaches for edge-of-field surface waters3. Tiered risk assessment procedure for sediment organisms in edge-of-field surface waters4. Aquatic ERA procedures to address multiple stress by PPPs at the edge-of-field and catchment scale Consultation of SCFCAH on this planning in May 2011 6
    • GD Aquatic Ecotoxicology – Module 1Tiered risk assessment for aquatic organismsin edge-of-field surface waters • Major tools for exposure (e.g. FOCUS sw senarios) and higher-tier effects assessment (e.g. SSDs and mesocosms) already developed • Several ERA aspects need an update e.g. recommendations of recent EFSA opinions and workshops (such as ELINK; AMRAP) 7
    • GD Aquatic Ecotoxicology – Module 2Combined exposure and effect modellingapproaches for edge-of-field surface waters • Start with this module when results of EU CREAM project become available • Linking exposure and effect models • Effect assessment requires - Good modelling practise for regulatory purposes - Validated/calibrated toxicokinetic/toxicodynamic models for focal species - Validated/calibrated population models for focal species 8
    • GD Aquatic Ecotoxicology – Module 3Tiered risk assessment procedure for sedimentorganisms in edge-of-field surface waters • Many insecticides and fungicides show fast dissipation from water and partition to sediment • Development of FOCUS-type sediment scenarios • Predictive value of sediment-spiked Chironomus riparius toxicity test • Appropriate sediment organism test battery for PPPs that differ in toxic mode-of-action 9
    • GD Aquatic Ecotoxicology – Module 4Aquatic ERA procedures to address multiplestress by PPPs at the edge-of-field andcatchment scale • Multiple stress assessment - Consequences of exposure to different PPPs via water and sediment - Consequences for ecological recovery in edge-of-field surface waters - Consequences for biodiversity and legally protected species at landscape/watershed level • Requires catchment scale exposure and effect scenarios and models and monitoring data 10
    • Currently working on Module 1: GD on tiered RA for aquatic organisms in edge-of-field surface watersChapter 1: IntroductionChapter 2: Specific Protection Goals for Water OrganismsChapter 3: Linking Exposure to EffectsChapter 4: Exposure AssessmentChapter 5: Data requirements for active substances and formulations and tier-1 effect assessment 11
    • Currently working on Module 1: GD on tiered RA for aquatic organisms in edge-of-field surface watersChapter 6: Higher-tier effect assessment on basis of laboratory toxicity tests with standard and additional speciesChapter 7: Higher-tier effect assessment by means of experimental ecosystemsChapter 8: Other issues 12
    • Related outsourcing activitiesLiterature reviews outsourced in 2008 for the GD onAquatic Ecotoxicology (reports published in 2009 on EFSAwebpage)• Critical comparison of available and potential higher tier testing approaches for the risk assessment of plant protection products, considering at least field and semi-field experimental designs, extrapolation from dose-response relationships, and increased dosages (aquatic and terrestrial).• Evidence of potential long term effects in (aquatic and terrestrial) invertebrates after short term pulsed exposure• Available protocols for testing the effects of chemicals against aquatic invertebrates other than Crustacea 13
    • Related outsourcing activitiesLiterature reviews outsourced 2011 on various topics ofrelevance for the GD on Aquatic Ecotoxicology (ongoing)• Ecological recovery of populations of vulnerable species driving the risk assessment of pesticides.• Repeated and multiple stress (exposure to pesticides) on aquatic organisms.• Review and comparison of available testing approaches and protocols for testing effects of chemicals on sediment-dwelling organisms with potential applicability to pesticides.• Response of microbial organisms (aquatic and terrestrial) to pesticides.• Toxicity of pesticides to aquatic and terrestrial life stages of amphibians and occurrence, habitat use and exposure of amphibian species in agricultural environments.• Literature review on the sensitivity and exposure of marine and estuarine organisms to pesticides in comparison to corresponding 14 fresh water species
    • Next steps• WG will work further on – finalising sections of GD module 1 – developing case studies• A first complete draft will be presented to the PPR Panel in the Plenary meeting in June 2012 for information and commenting• We plan to go for Public Consultation of the draft GD in October 2012 15